MySQLMove 1.2 Adds PivotWizard…Works with SQL Too..

In addition to the lack of effective database migration components  in the free software management tools for use in MySQL, there was another piece missing that SQL Server developers have had forever. That is the lack of a PIVOT function. Yes with various hacks you can achieve the same idea in your MySQL query but never to the power that SQL gives us. So since MySQLMove was intended to offer some easy to use tools to achieve what is lacking there, I decided to add pivot functionality for data in MySQL to the toolbox here. I also decided to make it available for use with SQL Server. You may ask why I did that since it is an easy matter to use the PIVOT function there or some of the other excellent tools afforded us in SQL Server Management Studio, SSRS and Excel. The reason for that is this. While experienced developers are very happy to use these tools, some less so experienced and the average person wanted a tool that didn’t seem so ….. huge to them. The idea of drag and drop and seeing all these options put out there that have a learning curve to them intimidates and makes them not want to use tools provided there. Plus the fact, not everyone is comfortable with visually based environments. It also does not hurt that as for me, a primarily SQL Server based back end guy, I can use or teach this tool to be used in minutes.

So lets talk about the MySQLMove Pivot Wizard for a bit…..

First you must get the installation media here…. If you have installed a version of MySQLMove previously, you might want to uninstall it first. The Microsoft provided template installer is buggy when it comes to removing previous versions of anyway. But here is the location of the installation file.

After install, double click the icon MySQLMove on your desktop and you will see:image

Click the “Pivot Wizard” button.

 

image

It is pretty straightforward. Keep in mind if you are using non Windows based MySQL Servers the case of these properties are a bigger deal then some Windows based systems. Notice the checkboxes on the bottom to choose your server type. You have to choose “MySQL” or “SQL”.

Also note the “?” button. If you need help anytime during the pivot wizard, you can click on these buttons to get that. I am trying something different here. Basically I am trying out Facebook for use as a tool to get end users support. When you click on these blue buttons, it will take you to a specific post on a Facebook group called “MySQLMove Help”. Ok you don’t have to be in awe of the such original naming lol. You don’t need to join to use for the help buttons to work. In fact, I don’t know why you would. I have disabled comments so it isn’t a discussion forum. A software developer who isn’t overly social. There’s a shock right?

After your login information has been accepted you will see this:

image

After you enter your statement, you click the “Parse” button. One of three things will happen. It will either tell you

1. Your statement could not be compiled

2. It compiles correctly and move on to the next screen of the wizard.

3. It compiles correctly but there were issues with the data. MySQL can be finicky this way if  you doing a lot of joins and there are duplicate columns or data that has constraints. It will inform you of the issues, show you a report but if it is not fatal it will allow you to continue. I do this because not every situation we encounter in real life has perfect data.

image

Also know if you are concerned about injection attacks, I have taken measures to ensure that no such thing can occur. I have barred use of several keywords that would be needed to do such. So rest easy on that.

After that is done you encounter the screen that asks you what columns you want to see depicted as rows. You use the arrows in the middle to add or remove columns that will be used as rows. In this example, I have four breakdowns occurring…. the last of the salesman is king seeing it as first. It then breaks it down into customers, categories of products sold and then the actual product.

image

You can use the arrows to the right to move your selected row items to different positions of priority. Once you are happy with what you have you click the Next button.

The next screen is the data headers button. This is the data that will actually be presented in the report. You have several options available to you to choose how to show that data. They are:

Average
The average of the values.
Count
The number of values (excluding Null and DBNull values).
Max
The largest value.
Min
The smallest value.
StdDev
An estimate of the standard deviation of a population, where the sample is a subset of the entire population.
StdDevp
The standard deviation of a population, where the population is all of the data to be summarized.
Sum
The sum of the values.
Var
An estimate of the variance of a population, where the sample is a subset of the entire population.
Varp
The variance of a population, where the population is all of the data to be summarized.

For this example we counting the number of orders that meet our row criteria. You can have up to eight data fields.

image

Once you are satisfied with the data field selection click the Next button.

You then have a screen that asks you what columns do you want to appear in your pivot report and how to group that data in relation to your data field of how many orders were submitted. In this example we have asked for order date and we selected from the drop down to group that information by quarter. You can choose as many columns as your heart desires or the size of your paper you are printing on will allow.

image

Other grouping methods available here are:

Alphabetical
Combines field values into categories according to the character that the values start with.

Date
This option is in effect only for fields that store date/time values.
Field values are grouped by the date part. The time part of the values is ignored.

DateDay
This option is in effect only for fields that store date/time values.
Field values are grouped by the day part. The following groups can be created: 1, 2, 3,…,31.

DateDayOfWeek
This option is in effect only for fields that store date/time values.
Field values are grouped by the days of the week. Examples of such groups: Sunday, Monday, Tuesday (the actual names of the days of the week are determined by the current culture).

DateDayOfYear
This option is in effect only for fields that store date/time values.
Field values are grouped by the number of the day in which they occur in a year. The following groups can be created: 1, 2, 3,…,365 (,366 in a leap year).

DateHour
This option is in effect only for fields that store date/time values.
Field values are grouped by the date part with the hour value. Examples of such groups: 3/4/2012 0:00, 3/4/2012 1:00, 3/4/2012 2:00, …

DateHourMinute
This option is in effect only for fields that store date/time values.
Field values are grouped by the date part with the hour and minute values. Examples of groups: 3/4/2012 0:00, 3/4/2012 0:01, 3/4/2012 0:02, …

DateHourMinuteSecond
This option is in effect only for fields that store date/time values.
Field values are grouped by the date part with the hour, minute and second values. Examples of groups: 3/4/2012 0:00:00, 3/4/2012 0:00:01, 3/4/2012 0:00:02, …

DateMonth
This option is in effect only for fields that store date/time values.
Field values are grouped by the month part. Examples of groups: January, February, March (the actual names of the months are determined by the current culture).

DateMonthYear
This option is in effect only for fields that store date/time values.
Field values are grouped by months and years. Examples of groups: August 2013, September 2014, January 2015, …

DateQuarter
This option is in effect only for fields that store date/time values.
Field values are sorted by the quarterly intervals of the year. The following groups can be created: 1, 2, 3 and 4. Each quarter includes three months.

DateQuarterYear
This option is in effect only for fields that store date/time values.
Field values are grouped by the year and quarter. Examples of groups: Q3 2012, Q4 2012, Q1 2013, Q2 2013, …

DateWeekOfMonth
This option is in effect only for fields that store date/time values.
Field values are grouped by the number of the week in which they occur in a month. The following groups can be created: 1, 2, 3, 4 and 5. The first week is the week containing the 1st day of the month.

DateWeekOfYear
This option is in effect only for fields that store date/time values.
Field values are grouped by the number of the week in a year in which they occur. The following groups can be created: 1, 2, 3,…,52, 53.
Week numbers are calculated based on the following current culture’s settings.

DateYear
This option is in effect only for fields that store date/time values.
Field values are grouped by the year part. Examples of such groups: 2003, 2004, 2005.

DayAge
This option is in effect only for fields that store date/time values. Field values are grouped by the number of full days that have elapsed till the current date.

Default
Groups combine unique field values.

Hour
This option is in effect only for fields that store date/time values.
Field values are grouped by the hour part, regardless of the date to which the current date/time value belongs.

Minute
This option is in effect only for fields that store date/time values.
Field values are grouped by the minute part, regardless of the date to which the current date/time value belongs.

MonthAge
This option is in effect only for fields that store date/time values.
Field values are grouped by the number of full months that have elapsed till the current date.

Numeric
This option is in effect only for fields that store numeric values.
Field values are grouped into intervals.

Second
This option is in effect only for fields that store date/time values.
Field values are grouped by the second part, regardless of the date to which the current date/time value belongs.

WeekAge
This option is in effect only for fields that store date/time values.
Field values are grouped by the number of full weeks that have elapsed till the current date.

YearAge
This option is in effect only for fields that store date/time values.
Field values are grouped by the number of full years that have elapsed till the current date.

You then click the Next button.

You then see a screen that lets you know it is ready to produce your report. You can still at this point go back and change any parameter you have chosen. Click Finish to produce the report.

image

You then see a preview of your report. You can see the rows broken down as we have selected. What I want you to pay attention to here is the various ways to export your report. Obviously if you can’t take it with you this data is no good to you.

image

You choose the format you want and a save dialog will appear. It will then ask you if you want to view it. Go ahead and admire your handiwork.

I have saved the example we created here just in case you want to review it.

Future modifications that I would like to make to this report will be to allow you to save a report setting so you don’t have to redo it each time, give you more appearance options, and integrate a chart wizard type interface that will allow you to build charts based on the data you have produced here. I am also considering building a web interface for the Migration and Pivot Wizard functions.

If you find the tool useful and would like to continue to see it developed, please don’t be a cheap bastard like me  and make a donation here using my email address – kellyjmartens@hotmail.com . Also feel free to send feedback, suggestions, critiques and praise to the same email address. All are read.

Once again here is the download link if you are too lazy to scroll back up and find it….Here is the installation file.

That about covers it. Thank you for reading this and have a great day!

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MySQLMove – An Easy To Use Tool To Move MySQL Database Objects and Data

Recently, I was asked to work on a project using a MySQL backend after many years of not having worked with the product. I was amazed when I saw that some of the more common tools to work with MySQL, such as MySQL Workbench or Toad, had still not developed an easy way to move objects and/or data between mySQL databases such as we have become accustomed to in SQL Server Management Studio.  Obviously, this greatly complicated my work and caused me to have to work with data in a production environment more often, which obviously I wasn’t comfortable with.

So like most developers, my brain began to think about how to solve this problem. You could of course, go through each object, get the CREATE script, put it in a giant file, and run it that way. That would be time consuming, bulky and difficult to maintain should there be changes to the database objects. And of course, this did nothing for the issue of data migration.

I looked at other products. MySQLDump, a free tool is fine. Of course, it was more complicated then I would have liked. I just want to move the objects and data and not have a high learning curve of a new product. Just get it done already. Others were available that you had to pay for. Being the cheap bastard that I am, that option didn’t appeal to me either.

So I wrote MySQLMove. This started out as a quick and dirty option to get objects and data moved to another database on another server and gradually moved to including things like a report, the option to only migrate objects, and actually put a user interface on top instead of just running a script. The script was fine for me but it may not be for other developers.

Let’s go into some things you need to know or generally be aware of.

First, some MySQL developers might wonder why I did not use INFILE to import data. The reason is for many such developers, they are coding against a shared hosting environment and often the administrators in such environment have disabled this option. Even using the LOCAL keyword presented problems relating to security. However, in future releases (but see below) I am planning on a interface modification that will allow the end user to indicate that INFILE is available for use and it will operate accordingly.

UPDATE:

The engine now uses INFILE and LOCAL keywords. It is also now lightening fast!

Please make sure you have created the database on the destination server. I know that comes from the “duh” department but you would be surprised…. If you are asking yourself the reason why I don’t do it for you, it is because I drop each object on the destination individually as it is being imported. But more importantly, often each database has a specific username and password designated for access. An idea submitted for future versions (but see below) is that we collect all databases under a given username and password and allow multiple databases to be migrated at one time.  That day is not here yet but it intrigues me.

Another “duh” is it is important to make sure the destination database doesn’t have any users writing changes.

Next…. it is important that if you are importing from or to a Linux based environment, that you are absolutely certain of the case of your database, its objects and server name. Windows is much more forgiving then Linux is in this regard. If you are importing from Linux, be prepared for windows to make all objects lower case, regardless of how you created them in Linux based servers. I have also seen some versions of MySQL run on Windows that were also sticklers for such. My best advice to you is to make all objects lower case. Both Linux and Windows based MySQL servers can handle such and if you are often moving between the two systems you will save yourself a lot of trouble.

Next, you will see an option in a checkbox to only import MySQL objects.

image

If you have the time and the data available to you in text or csv format, I suggest you check this. Why? While this engine can and will move data, it takes longer then a manual import would. The way it is built is all of your insert statements for the data are collected as one statement and inserted collectively. It was about 20 percent faster then inserting a row at a time and also if it should bomb, I can rollback the transaction so that you are not left with a table with partial data. That said, if you are one of those folks who build 300+ column tables, (by the way who hurt you as a child to do that to yourself? Smile jk) it is going to take awhile. But rest assured, it will get there. This was tested against a table with 80000 rows and 30 columns. So it is pretty robust.

UPDATE:

As mentioned above I now use INFILE and LOCAL keyword. The above text is no longer a concern.

Next, it is important you let the code finish. Check that, it is imperative. If you are impatient, switch to decaf and try some breathing exercises.

Finally, MySQLMove will attempt to export database objects as follows: tables, stored procedures, functions and triggers. Not every single one of all those objects can be migrated using this tool. One issue that has commonly arisen is when the code uses a PREPARE statement along with a string for use as the command. Future versions (but see below) will probably rectify this. Should something not be exportable to the destination, at the end of the process a report will appear showing what objects weren’t able to be moved. In my testing, it is a rare occurrence. Also with triggers, remember the “defined user” is copied straight from the trigger to the destination. You will need to make sure that user exists on the destination database as well. Oh and by the way, triggers are migrated last. Otherwise each insert might cause that trigger to fire. And yeah that would not be fun.

Finally, I would love to continue developing this tool. There are so many things I could and would love to do with it. Better reports, table optimization, code optimization, object selection etc. Unfortunately that costs me time, which in translation for those that live under a rock, this means it costs me money. If you find the tool useful and would like to continue to see it developed, please don’t be a cheap bastard like me Smile and make a donation here using my email address – kellyjmartens@hotmail.com .

 

paypal-app

I would be extremely grateful. I know the honor system is putting yourself out there isn’t real effective but it gives those of you who would like to say thank you and keep going with this a chance to do so.

So on to the download…. You have two options….

One if you are a person who already has the MySql.Data dll already installed on your system (make sure it is version 6.9.9.0 and you have at least .NET runtime v4.0.30319) you can download just the bin folder. If you don’t or aren’t sure, get the install package zip file called “MySqlMoveSetup”. If you need the .NET Framework you can download it here.

Both the bin folder zip file and the installer zip file are located here on my OneDrive.

Please do send me an email at kellyjmartens@hotmail.com with any bug reports, suggestions or praise. All are accepted. Smile 

 

Have a great day!

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Email Excel Spreadsheet as Email Body Issues

Hello all. I had a production manager wanting an excel spreadsheet mailed as the body of the email. As some of you know the code generated by excel to produce the email is pretty crazy. But as a result, it showed up fine in Outlook and Android but it did not show the gridlines on the spreadsheet. So this code is based on the excellent work by Ron DeBruin over at http://www.rondebruin.nl/win/s1/outlook/bmail3.htm . I did a replacement for the HTML Range in this manner and the grid lines did appear. And the manager was happy.

Sub Mail_Selection_Range_Outlook_Body()
‘For Tips see: http://www.rondebruin.nl/win/winmail/Outlook/tips.htm
‘Don’t forget to copy the function RangetoHTML in the module.
‘Working in Excel 2000-2016
    Dim rng As Range
    Dim OutApp As Object
    Dim OutMail As Object
‘MsgBox Cells(5, 9).Value
    Set rng = Nothing
    On Error Resume Next
    ‘Only the visible cells in the selection
    Set rng = Selection.SpecialCells(xlCellTypeVisible)
    ‘You can also use a fixed range if you want
    ‘Set rng = Sheets(“YourSheet”).Range(“D4:D12”).SpecialCells(xlCellTypeVisible)
    On Error GoTo 0

    If rng Is Nothing Then
        MsgBox “The selection is not a range or the sheet is protected” & _
               vbNewLine & “please correct and try again.”, vbOKOnly
        Exit Sub
    End If

    With Application
        .EnableEvents = False
        .ScreenUpdating = False
    End With

    Set OutApp = CreateObject(“Outlook.Application”)
    Set OutMail = OutApp.CreateItem(0)

    On Error Resume Next
    With OutMail
        .BodyFormat = olFormatHTML
        .To = “you@you.com”       
           
               
       
         .CC = “”
        .BCC = “”
        .Subject = “Testing Purchase Order Email To Steve”
        .HTMLBody = RangetoHTML(rng)
        Replace .HTMLBody, “border-left:none”, “border-left:solid;border-width: 1px;border-color:black”
        Replace .HTMLBody, “border-right:none”, “border-right:solid;border-width: 1px;border-color:black”
        Replace .HTMLBody, “border-bottom:none”, “border-bottom:solid;border-width: 1px;border-color:black”
        Replace .HTMLBody, “border-top:none”, “border-bottom:solid;border-width: 1px;border-color:black”
        .Send
         ‘or use .Display
    End With
    On Error GoTo 0

    With Application
        .EnableEvents = True
        .ScreenUpdating = True
    End With

    Set OutMail = Nothing
    Set OutApp = Nothing
End Sub

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Class to Simplify and Minimize Code for Stored Procedures and TSQL

First of all if you are using TSQL in your code you really need to get in a another line of work. It isn’t scalable, difficult to maintain and is generally a bad practice. But I know some of you still do it so I did include it. This class will allow you to in a few lines of code do your select, update, insert or delete statements in a very few lines of code. All that is required of the developer is to list the values in order (if you are using stored procedures) that are required. Also included is how to declare a new instance of a sqlparametercollection – which you aren’t suppose to be able to do. I ended up not needing it but included it just in case someone needs to do that someday. Also if you are using a strongly typed dataset there is a method included of how to do that. After the code is example of usage. Have a great day!

using System;
using System.Collections;
using System.Collections.Generic;
using System.Data;

using System.IO;

using System.Data.SqlClient;

public class clsData
{

    public SqlConnection sqlconn = new SqlConnection();
    public string Error_Message;
    public List<SqlParameter> ParamList = new List<SqlParameter>();
    public ArrayList ParamValues = new ArrayList();

    public int SQLExecuteNonQueryValue;
    public clsData()
   

    public enum SQLAction
    {
        SelectAction,
        UpdateInsertDeleteAction
    }

    public virtual DataTable DataAction(clsData.SQLAction Action, DataTable dt, string cmdtext, string ParamValues = “”)
    {
        SQLExecuteNonQueryValue = -1;
        SqlCommand cmd = new SqlCommand();
        cmd.CommandText = cmdtext;
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Connection = sqlconn;
        this.GetParameterList(cmdtext);
        if (!string.IsNullOrEmpty(Error_Message)) {
            return null;
        }
        if (!string.IsNullOrEmpty(ParamValues)) {
            this.ParseSQLParameterValues(ParamValues);
            for (i = 0; i <= this.ParamList.Count – 1; i++) {
                cmd.Parameters.AddWithValue(this.ParamList[i].ToString(), this.ParamValues[i].ToString());
            }
        }
        //Debug.WriteLine(cmd.CommandText)
        try {
            cmd.Connection.Open();
            switch (Action) {
                case SQLAction.SelectAction:
                    dt.Load(cmd.ExecuteReader());
                    break;
                case SQLAction.UpdateInsertDeleteAction:
                    //Check this value to make sure everything went ok
                    SQLExecuteNonQueryValue = cmd.ExecuteNonQuery();
                    cmd.Connection.Close();
                    return null;
            }
            cmd.Connection.Close();

        } catch (Exception ex) {
            Error_Message = “There was a problem with ” + cmdtext + “. “;
            return null;
        }

        //removing duplicate table from dataset
        for (i = 0; i <= ds_Copy.Tables.Count – 1; i++) {
            if (ds_Copy.Tables(i).TableName == dt.TableName) {
                ds_Copy.Tables(i).Clear();
                ds_Copy.Tables(i).Columns.Clear();
            }
        }

        //placing datatable in the dataset
        ds_Copy.Merge(dt, false, MissingSchemaAction.Add);
        Error_Message = “”;
        return dt;
    }

    public DataTable DataActionTSQL(clsData.SQLAction Action, DataTable dt, string sqlstring)
    {
        SQLExecuteNonQueryValue = -1;
        SqlCommand cmd = new SqlCommand();
        cmd.CommandText = sqlstring;
        cmd.Connection = sqlconn;
        try {
            cmd.Connection.Open();
            switch (Action) {
                case SQLAction.SelectAction:
                    dt.Load(cmd.ExecuteReader());
                    break;
                case SQLAction.UpdateInsertDeleteAction:
                    //Check this value to make sure everything went ok
                    SQLExecuteNonQueryValue = cmd.ExecuteNonQuery();
                    cmd.Connection.Close();
                    return null;
            }
            cmd.Connection.Close();

        } catch (Exception ex) {
            Error_Message = “There was a problem with ” + sqlstring + “. “;
            return null;
        }
        //removing duplicate table from dataset
        for (i = 0; i <= ds_Copy.Tables.Count – 1; i++) {
            if (ds_Copy.Tables(i).TableName == dt.TableName) {
                ds_Copy.Tables(i).Clear();
                ds_Copy.Tables(i).Columns.Clear();
            }
        }
        //placing datatable in the dataset
        ds_Copy.Merge(dt, false, MissingSchemaAction.Add);
        Error_Message = “”;
        return dt;
    }

    private List<SqlParameter> GetParameterList(string ProcName)
    {
        //Get the parameters for the selected stored procedure
        List<SqlParameter> inputParamList = new List<SqlParameter>();
        ParamList.Clear();

        using (SqlConnection cn = new SqlConnection()) {
            DispatcherTool.My.MySettings Settings = new DispatcherTool.My.MySettings();
            cn.ConnectionString = Settings.SRAConnectionString;
            SqlCommand myCommand = new SqlCommand();
            myCommand.Connection = cn;
            myCommand.CommandText = ProcName;
            myCommand.CommandType = System.Data.CommandType.StoredProcedure;
            try {
                cn.Open();
                SqlCommandBuilder.DeriveParameters(myCommand);
                cn.Close();
            } catch (Exception ex) {
                Error_Message = “There was a problem with the connection to the database.”;
                return null;
            }

            //Dim sqlparams As SqlParameterCollection = DirectCast(GetType(SqlParameterCollection).GetConstructor(BindingFlags.NonPublic Or BindingFlags.Instance, Nothing, Type.EmptyTypes, Nothing).Invoke(Nothing), SqlParameterCollection)

            foreach (SqlParameter param in myCommand.Parameters) {
                if (param.Direction == System.Data.ParameterDirection.Input || param.Direction == System.Data.ParameterDirection.InputOutput) {
                    //sqlparams.Add(param.ParameterName & ” – ” & param.SqlDbType.ToString())
                    //Debug.WriteLine(param.ParameterName & ” – ” & param.SqlDbType.ToString())
                    inputParamList.Add(param);
                    //Else
                    // sqlparams.Add(param.ParameterName & ” – ” & param.SqlDbType)
                    //Debug.WriteLine(param.ParameterName & ” -2 ” & param.SqlDbType)
                }
            }
        }
        this.ParamList = inputParamList;
        Error_Message = “”;
        return this.ParamList;
    }

    public void ParseSQLParameterValues(string ValueString)
    {
        ParamValues.Clear();
        string[] parts = ValueString.Split(new char[] { ‘,’ });
        string part = null;
        foreach (string part_loopVariable in parts) {
            part = part_loopVariable;
            ParamValues.Add(part);
        }
    }

    //’Public Shared Function ConvertToTypedDataTable(Of T As {Data.DataTable, New})(ByVal dtBase As Data.DataTable) As T
    //’    Dim dtTyped As New T
    //’    dtTyped.Merge(dtBase)
    //’    Return dtTyped
    //’End Function

}

And then it’s use…..

private void Button1_Click(System.Object sender, System.EventArgs e)
{
    Strongly_Typed_DataSet.usp_Your_Stored_Procedure dt = new Strongly_Typed_DataSet.usp_Your_Stored_Procedure();

    DataGridView1.DataSource = cn.DataAction(clsData.SQLAction.SelectAction, dt, ds.usp_Get_PrinterName_for_PickList_Printing.ToString, “Tubing”);

    //DataGridView1.DataSource = cn.DataActionTSQL(clsData.SQLAction.SelectAction, dt, “SELECT *FROM Your_Table”)

}


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WCF and Email Attachments

First off I want to apologize for being away so long. It has been a crazy ride to say the least.

So a colleague of mine ran into an issue with WCF and emailing attachments and asked for help. In this block of code below it would always fail at:

Attachment attachment = new Attachment(fileAttachment.ContentStream, fileAttachment.Name);”     The error is : “Value cannot be null.
Parameter name: stream”

 

 

 
EmailSendInput emailSendInput = new EmailSendInput
                {
                    Attachments = new List<Attachment>(),
                    Body = model.Body,
                    To = new List<string> { model.EmailTo },
                    From = model.EmailFrom,
                    Subject = model.EmailSubject
                };

                if (model.Files != null)
                {
                    foreach (var currAttachment in model.Files)
                    {
                        if (currAttachment != null && currAttachment.ContentLength > 0)
                        {
                            // the filename needs to be nice looking
                            string fileName =
                                currAttachment.FileName.Substring(
                                    currAttachment.FileName.LastIndexOf(@”\”, System.StringComparison.Ordinal) + 1,
                                    currAttachment.FileName.Length
                                    – currAttachment.FileName.LastIndexOf(@”\”, System.StringComparison.Ordinal) – 1);

                            var attachment = new Attachment(currAttachment.InputStream, fileName);
                            emailSendInput.Attachments.Add(attachment);
                        }
                    }
                }

                B2BMortgageDataServiceAgent b2BMortgageDataServiceAgent = new B2BMortgageDataServiceAgent();
                EmailSendResponse emailSendResponse = b2BMortgageDataServiceAgent.SendEmail(emailSendInput);
                if (!emailSendResponse.Success)
                {
                    throw new Exception(emailSendResponse.Message);
                }
            }

public EmailSendResponse SendEmail(EmailSendInput input)
        {
            EmailSendResponse retVal = new EmailSendResponse();
            try
            {
               
                string smtpServer = “”
                string smtpPort = “”

                using (var client = new SmtpClient(smtpServer, Convert.ToInt32(smtpPort)))
                {
                    var mail = new MailMessage
                    {
                        From = new MailAddress(input.From),
                        Subject = input.Subject,
                        Body = input.Body
                    };
                    input.To.ForEach(t => mail.To.Add(t));

                    if (input.Attachments != null && input.Attachments.Count > 0)
                    {
                        foreach (var fileAttachment in input.Attachments)
                        {
                            //Code Crashes here
                            Attachment attachment = new Attachment(fileAttachment.ContentStream, fileAttachment.Name);
                            mail.Attachments.Add(attachment);
                        }
                    }

                    client.Send(mail);
                }

                retVal.Success = true;
            }
            catch (Exception exception)
            {
                retVal.Success = false;
                LogUtil.LogException(exception);

            
                retVal.Message = exception.ToString();
            }

            return retVal;
        }

and then the contract:

[DataContract]
    public class EmailSendInput
    {
        [DataMember]
        public string From { get; set; }

        [DataMember]
        public List<string> To { get; set; }

        [DataMember]
        public string Subject { get; set; }

        [DataMember]
        public string Body { get; set; }

        [DataMember]
        public List<Attachment> Attachments { get; set; }

    }

Implemented as:

public EmailSendResponse SendEmail(EmailSendInput input)
         {
             try
             {
                 return this.dataAgent.SendEmail(input);
             }
             catch (Exception e)
             {
                 this.logger.LogException(e, 2);
                 throw new FaultException(“An error occured in SendEmail. Error details : ” + this.BuildMessage(e));
             } 
         }

and the Email response:

[DataContract]
    public class EmailSendResponse
    {
        [DataMember]
        public bool Success { get; set; }

        [DataMember]
        public string Message { get; set; }
    }

So now we have the problem. I basically had to recreate his datamember for attachment in the contract EmailSendInput to a

public List<EmailEncodedAttachment> Attachments { get; set; }

and added a new contract called EmailEncodedAttachment and process how he was handling the attachment differently. I’ve also included the MVC controller calls in case it might help you as well.

 

SOLUTION:

[DataContract]
    public class EmailSendInput
    {
        [DataMember]
        public string From { get; set; }

        [DataMember]
        public List<string> To { get; set; }

        [DataMember]
        public string Subject { get; set; }

        [DataMember]
        public string Body { get; set; }

        [DataMember]
        public List<EmailEncodedAttachment> Attachments { get; set; }

    }

 

[DataContract]
    public class EmailEncodedAttachment
    {
        [DataMember]
        public string Base64Attachment;

        [DataMember]
        public string Name;

        /// <summary>
        /// One of the System.Net.Mime.MediaTypeNames
        /// </summary>
        [DataMember]
        public string MediaType;
    }
}
                retVal.Message = exception.ToString();
            }

            return retVal;
        }

 

public EmailSendResponse SendEmail(EmailSendInput input)
        {
            EmailSendResponse retVal = new EmailSendResponse();
            try
            {
               
                string smtpServer = ConfigurationManager.AppSettings[“SmtpServer”] ?? “url”;
                string smtpPort = ConfigurationManager.AppSettings[“SmtpPort”] ?? “portnum”;

                using (var client = new SmtpClient(smtpServer, Convert.ToInt32(smtpPort)))
                {
                    var mail = new MailMessage
                    {
                        From = new MailAddress(input.From),
                        Subject = input.Subject,
                        Body = input.Body
                    };
                    input.To.ForEach(t => mail.To.Add(t));

                    if (input.Attachments != null && input.Attachments.Count > 0)
                    {
                        foreach (var fileAttachment in input.Attachments)
                        {
                            mail.Attachments.Add(this.CreateAttachment(fileAttachment));
                        }
                    }

                    client.Send(mail);
                }

                retVal.Success = true;
            }
            catch (Exception exception)
            {
                retVal.Success = false;
                LogUtil.LogException(exception);
             
                retVal.Message = exception.ToString();
            }

            return retVal;
        }

 

The MVC controller action calls the service like so:

EmailSendInput emailSendInput = new EmailSendInput
                {
                    Attachments = new List<EmailEncodedAttachment>(),
                    Body = model.Body,
                    To = new List<string> { model.EmailTo },
                    From = model.EmailFrom,
                    Subject = model.EmailSubject
                };

                if (model.Files != null)
                {
                    foreach (var file in model.Files)
                    {
                        if (file != null && file.ContentLength > 0)
                        {
                            // the filename needs to be nice looking
                            string prettyFileName =
                                file.FileName.Substring(
                                    file.FileName.LastIndexOf(@”\”, System.StringComparison.Ordinal) + 1,
                                    file.FileName.Length
                                    – file.FileName.LastIndexOf(@”\”, System.StringComparison.Ordinal) – 1);

                            var attachment = this.CreateAttachment(prettyFileName, file.InputStream);
                            emailSendInput.Attachments.Add(attachment);
                        }
                    }
                }

                B2BMortgageDataServiceAgent b2BMortgageDataServiceAgent = new B2BMortgageDataServiceAgent();
                EmailSendResponse emailSendResponse = b2BMortgageDataServiceAgent.SendEmail(emailSendInput);
                if (!emailSendResponse.Success)
                {
                    throw new Exception(emailSendResponse.Message);
                }

 

and finally the encoding method which makes this possible:

private EmailEncodedAttachment CreateAttachment(string fileName, Stream stream)
        {
            EmailEncodedAttachment att = new EmailEncodedAttachment
            {
                Name = fileName,
                MediaType = System.Net.Mime.MediaTypeNames.Text.Plain
            };

            byte[] buffer = new byte[stream.Length];
            stream.Read(buffer, 0, (int)stream.Length);
            att.Base64Attachment = Convert.ToBase64String(buffer);

            return att;
        }

 

There you have it folks. I hope you have a great Sunday!

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Capture an Image of the Desktop, Specific Screen or Portion of a Screen with C#

So today is my birthday. It has been a wild ride this last 46 years. Lets hope that things continue to get better.

So this is my entire class for capturing screens and desktop appearance to an image file or to print them. I use this class quite often in my error management, saving or emailing the output should errors occur so I can get a good idea of what was going on at the time an error occurs. Why? Because often end users or business analysts, though they are trying their best, sometimes can’t describe in detail how to reproduce what occurred. I suggest using this in conjunction with a logging class as well so that you can replicate the steps needed. The image file is also very handy in reconstructing what a user was or was not doing which, as a coder, can literally save your ass on occasion. So here it is. It is well commented and pretty straight forward.

using System.Windows.Forms;
using System;
using System.Runtime.InteropServices;
using System.Drawing;
using System.Drawing.Imaging;

public class clsScreenCapture
{
    private System.Drawing.Printing.PrintDocument Pd = new System.Drawing.Printing.PrintDocument();
    private PictureBox PicForm = new PictureBox();

    /// Creates an Image object containing a screen shot of the entire desktop
    public Image CaptureScreen()
    {
        return CaptureWindow(User32.GetDesktopWindow());
    } //CaptureScreen
    /// Creates an Image object containing a screen shot of a specific window
    public Image CaptureWindow(IntPtr handle)
    {
        int SRCCOPY = 0xCC0020;
        // get te hDC of the target window
        IntPtr hdcSrc = User32.GetWindowDC(handle);
        // get the size
        User32.RECT windowRect = new User32.RECT();
        User32.GetWindowRect(handle, ref windowRect);
        int width = windowRect.right – windowRect.left;
        int height = windowRect.bottom – windowRect.top;
        // create a device context we can copy to
        IntPtr hdcDest = GDI32.CreateCompatibleDC(hdcSrc);
        // create a bitmap we can copy it to,
        // using GetDeviceCaps to get the width/height
        IntPtr hBitmap = GDI32.CreateCompatibleBitmap(hdcSrc, width, height);
        // select the bitmap object
        IntPtr hOld = GDI32.SelectObject(hdcDest, hBitmap);
        // bitblt over
        GDI32.BitBlt(hdcDest, 0, 0, width, height, hdcSrc, 0, 0, SRCCOPY);
        // restore selection
        GDI32.SelectObject(hdcDest, hOld);
        // clean up
        GDI32.DeleteDC(hdcDest);
        User32.ReleaseDC(handle, hdcSrc);

        // get a .NET image object for it
        Image img = Image.FromHbitmap(hBitmap);
        // free up the Bitmap object
        GDI32.DeleteObject(hBitmap);

        return img;
    } //CaptureWindow
    /// Captures a screen shot of a specific window, and saves it to a file
    public void CaptureWindowToFile(IntPtr handle, string filename, ImageFormat format)
    {
        Image img = CaptureWindow(handle);
        img.Save(filename, format);
    } //CaptureWindowToFile
    /// Captures a screen shot of a specific window, and saves it to a file
    public void CaptureWindowToPrinter(Form mfForm, ImageFormat format)
    {
        // Dim img As Image = CaptureScreen()

        Image img = CaptureWindow(mfForm.Handle);
        try
        {
            PicForm.Image = img;
            if (MessageBox.Show(“Press Yes to Print or No to Copy to your Clipboard (‘No’ will allow pasting into an email or Word document etc).”, “Print or Copy to Clipboard?”, MessageBoxButtons.YesNo) == DialogResult.Yes)
            {
                Pd.Print();
            }
            else
            {
                Clipboard.SetDataObject(img, true);
            }
        }
        catch (Exception ex)
        {
            string a = “vfdgsfg”;
        }
    } //CaptureWindowToPrinter
    private void pd_PrintPage(object sender, System.Drawing.Printing.PrintPageEventArgs e)
    {
        //—————————————————————
        // this procedure handles events raised by the printer object pd
        //—————————————————————
        e.Graphics.DrawImageUnscaled(PicForm.Image, 0, 0); //send image to printer – upper left position

        e.HasMorePages = false; //this is the last page to print

    }

    /// Captures a screen shot of the entire desktop, and saves it to a file
    public void CaptureScreenToFile(string filename, ImageFormat format)
    {
        Image img = CaptureScreen();
        img.Save(filename, format);
    } //CaptureScreenToFile
    public Bitmap CaptureDeskTopRectangle(Rectangle CapRect, int CapRectWidth, int CapRectHeight)
    {
        /// Returns BitMap of the region of the desktop, similar to CaptureWindow, but can be used to
        /// create a snapshot of the desktop when no handle is present, by passing in a rectangle
        /// Grabs snapshot of entire desktop, then crops it using the passed in rectangle’s coordinates
        clsScreenCapture SC = new clsScreenCapture();
        Bitmap bmpImage = new Bitmap(SC.CaptureScreen());
        Bitmap bmpCrop = new Bitmap(CapRectWidth, CapRectHeight, bmpImage.PixelFormat);
        Rectangle recCrop = new Rectangle(CapRect.X, CapRect.Y, CapRectWidth, CapRectHeight);
        Graphics gphCrop = Graphics.FromImage(bmpCrop);
        Rectangle recDest = new Rectangle(0, 0, CapRectWidth, CapRectHeight);
        gphCrop.DrawImage(bmpImage, recDest, recCrop.X, recCrop.Y, recCrop.Width, recCrop.Height, GraphicsUnit.Pixel);
        return bmpCrop;
    }
    /// Helper class containing Gdi32 API functions
    private class GDI32
    {
        public int SRCCOPY = 0xCC0020;
        // BitBlt dwRop parameter
        [System.Runtime.InteropServices.DllImport(“gdi32.dll”, EntryPoint=”BitBlt”, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi, SetLastError=true)]
        public static extern Int32 BitBlt(IntPtr hDestDC, Int32 x, Int32 y, Int32 nWidth, Int32 nHeight, IntPtr hSrcDC, Int32 xSrc, Int32 ySrc, Int32 dwRop);

        [System.Runtime.InteropServices.DllImport(“gdi32.dll”, EntryPoint=”CreateCompatibleBitmap”, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi, SetLastError=true)]
        public static extern IntPtr CreateCompatibleBitmap(IntPtr hdc, Int32 nWidth, Int32 nHeight);

        [System.Runtime.InteropServices.DllImport(“gdi32.dll”, EntryPoint=”CreateCompatibleDC”, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi, SetLastError=true)]
        public static extern IntPtr CreateCompatibleDC(IntPtr hdc);

        [System.Runtime.InteropServices.DllImport(“gdi32.dll”, EntryPoint=”DeleteDC”, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi, SetLastError=true)]
        public static extern Int32 DeleteDC(IntPtr hdc);

        [System.Runtime.InteropServices.DllImport(“gdi32.dll”, EntryPoint=”DeleteObject”, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi, SetLastError=true)]
        public static extern Int32 DeleteObject(IntPtr hObject);

        [System.Runtime.InteropServices.DllImport(“gdi32.dll”, EntryPoint=”SelectObject”, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi, SetLastError=true)]
        public static extern IntPtr SelectObject(IntPtr hdc, IntPtr hObject);
    } //GDI32
    /// Helper class containing User32 API functions
    public class User32
    {
        [StructLayout(LayoutKind.Sequential)]
        public struct RECT
        {
            public int left;
            public int top;
            public int right;
            public int bottom;
        } //RECT

        [System.Runtime.InteropServices.DllImport(“user32.dll”, EntryPoint=”GetDesktopWindow”, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi, SetLastError=true)]
        public static extern IntPtr GetDesktopWindow();

        [System.Runtime.InteropServices.DllImport(“user32.dll”, EntryPoint=”GetWindowDC”, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi, SetLastError=true)]
        public static extern IntPtr GetWindowDC(IntPtr hwnd);

        [System.Runtime.InteropServices.DllImport(“user32.dll”, EntryPoint=”ReleaseDC”, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi, SetLastError=true)]
        public static extern Int32 ReleaseDC(IntPtr hwnd, IntPtr hdc);

        [System.Runtime.InteropServices.DllImport(“user32.dll”, EntryPoint=”GetWindowRect”, ExactSpelling=true, CharSet=System.Runtime.InteropServices.CharSet.Ansi, SetLastError=true)]
        public static extern Int32 GetWindowRect(IntPtr hwnd, ref RECT lpRect);

    } //User32

    public clsScreenCapture()
    {
        SubscribeToEvents();
    }

// event handler wireups:
    private bool EventsSubscribed = false;
    private void SubscribeToEvents()
    {
        if (EventsSubscribed)
            return;
        else
            EventsSubscribed = true;

        Pd.PrintPage += pd_PrintPage;
    }

}


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