Archive for April, 2012

C# Application linked to SharePoint List Web Service

This weekend found myself knee deep in a crisis that my friend who had migrated from SharePoint 2003 to 2007 (there were reasons he couldn’t go to 2010). Simply put the migration from SharePoint 2003 to 2007 had broken his application (tracking program that submitted data to a 2003 SharePoint List) because in SharePoint 2007  you can’t do this while not on the actual server if you have “Web Page Security Validation” enabled. So for the code below you have to have SPWeb.AllowUnsafeUpdates = true; . Obviously not the ideal solution for my friend but we didn’t have time to screw around. Here is what I did….

 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Collections;
using System.Xml;
using System.ServiceModel;
using System.Net;
 
namespace Trigger_Tracker
{
    public partial class Form1 : Form
    {//form move on click and drag
        bool FormMoving;
        Point initialPoint;
        TriggerTrackerPictureBox frmPicture;
 
        public Form1()
        {//form move on click and drag
            InitializeComponent();
            comboBox1.SelectedIndex = 0;
            FormMoving = false;
 
            frmPicture = new TriggerTrackerPictureBox();
            frmPicture.localForm = this;
            frmPicture.Owner = this;
            frmPicture.Show();
            frmPicture.Width = 68;
            frmPicture.Height = 65;
            SetPositionOfPictureForm();
        }
 
        private void SetPositionOfPictureForm()
        {
            frmPicture.Top = this.Top + 26;
            frmPicture.Left = this.Left + 87;
        }
 
       
 
        private void TrackerButton(object sender, EventArgs e)
        {
            string listGUID = “A93E1A7E-67D0-4D7D-A4ED-803D7DFE684B”;
            string viewGUID = “6B2F3EF2-4B0C-41E1-B87E-0C3185B587DD”;
            //string viewGUID2 = “6B2F3EF2-4B0C-41E1-B87E-0C3185B587DD”;
 
            int ItemCounter = 1;
            ServiceList.Lists listService = new ServiceList.Lists();
           // RetentionLists.ListsSoapClient listService = new RetentionLists.ListsSoapClient();
 
            //////
           listService.Credentials = System.Net.CredentialCache.DefaultNetworkCredentials;
           //listService.ChannelFactory.Credentials.Windows.ClientCredential   = System.Net.CredentialCache.DefaultNetworkCredentials;
 
            XmlNode activeItemData = listService.GetListItems(listGUID, viewGUID, null, null, “100”, null);
            XmlDocument xDoc = new XmlDocument();
            string tmpString = activeItemData.InnerXml.Replace(“\r\r”, “”);
            xDoc.LoadXml(tmpString);
            XmlNamespaceManager nsManager = new XmlNamespaceManager(xDoc.NameTable);
            nsManager.AddNamespace(“z”, “#RowsetSchema”);
            nsManager.AddNamespace(“rs”, “urn:schemas-microsoft-com:rowset”);
 
            XmlNodeList xNode = xDoc.SelectNodes(“/rs:data/z:row”, nsManager);
 
            foreach (XmlNode tmpNode in xNode)
                ItemCounter++;
 
            StringBuilder strBuilder = new StringBuilder();
            strBuilder.Append(“<Method ID='” + ItemCounter + “‘ Cmd=’New’>”);
            strBuilder.Append(“<Field Name=’Attachments’>” + “0” + “</Field>”);
            strBuilder.Append(“<Field Name=’Title’>” + PolicyNumber.Text + “</Field>”);
            strBuilder.Append(“<Field Name=’Reason’>” + comboBox1.Text + “</Field>”);
            strBuilder.Append(“</Method>”);
 
            string strBatch = strBuilder.ToString();
 
            XmlDocument newDoc = new XmlDocument();
            XmlElement newElement = newDoc.CreateElement(“Batch”);
            newElement.SetAttribute(“OnError”, “Continue”);
            newElement.SetAttribute(“ViewName”, viewGUID);
            newElement.InnerXml = strBatch;
           
            XmlNode returnNode = listService.UpdateListItems(listGUID, newElement);
 
            this.comboBox1.Text = “Please Select….”;
            this.PolicyNumber.Text = “”;
            this.PolicyNumber.Mask = “0000000000”;
 
            comboBox1.Focus();
        }
 
       
 
 
        public void Form1_MouseUp(object sender, MouseEventArgs e)
        {//form move on click and drag
            FormMoving = false;
        }
 
        public void Form1_MouseMove(object sender, MouseEventArgs e)
        {//form move on click and drag
            if (FormMoving)
            {
                if ((Left + e.X – initialPoint.X) <= 0)
                    Left = 0;
                else if ((Right + e.X – initialPoint.X) >= Screen.PrimaryScreen.Bounds.Right)
                    Left = Screen.PrimaryScreen.Bounds.Right – Width;
                else
                    Left = Left + e.X – initialPoint.X;
                if ((Top + e.Y – initialPoint.Y) <= 0)
                    Top = 0;
                else if ((Bottom + e.Y – initialPoint.Y) >= Screen.PrimaryScreen.Bounds.Bottom)
                    Top = Screen.PrimaryScreen.Bounds.Bottom – Height;
                else
                    Top = Top + e.Y – initialPoint.Y;
            }
            SetPositionOfPictureForm();
        }
 
        public void Form1_MouseDown(object sender, MouseEventArgs e)
        {//form move on click and drag
            FormMoving = true;
            initialPoint = new Point(e.X, e.Y);
        }
 
        public void pictureBox1_MouseDown(object sender, MouseEventArgs e)
        {//form move on click and drag
            FormMoving = true;
            initialPoint = new Point(e.X, e.Y);
        }
 
        private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
        {
        }
 
        private void pictureBox1_MouseHover(object sender, EventArgs e)
        {
        }
 
        public void label1_MouseHover(object sender, EventArgs e)
        {
            FormMoving = false;
        }
 
        public void label1_MouseUp(object sender, MouseEventArgs e)
        {
            FormMoving = false;
        }
 
       
 
        public void Form1_MouseHover(object sender, EventArgs e)
        {
            this.Opacity = 1;
        }
 
        public void Form1_MouseLeave(object sender, EventArgs e)
        {
            if(!PolicyNumber.Focused)
                this.Opacity = .25;
        }
 
        public void pictureBox1_MouseLeave(object sender, EventArgs e)
        {
            this.Opacity = 1;
        }
 
        public void pictureBox1_MouseHover_1(object sender, EventArgs e)
        {
            this.Opacity = 1;
        }
 
        public void Form1_Click(object sender, EventArgs e)
        {
            comboBox1.Focus();
        }
    }
}

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Databind ComboBox with WPF and C#

Its been a while my apologies. I have been extremely busy.

This topic came up because in existing applications data binding at design time was heavily used. I personally avoid such data binding as much as possible because well in all honesty it causes me a lot of problems later on. I realize many of you live and die with it. So don’t take it personally.

So I am converting one of these apps to XAML and WPF. They insisted I maintain a ComboBox databind. As many of you know data binding has changed a bit in WPF from your standard application. I created a property to bind the ComboBox to. I set the DataContext of the page to itself, which I like to do. It lets me expose various properties and quickly bind to them. Have a great weekend!

XAML
—-
        <ComboBox
            Height=”23″
            HorizontalAlignment=”Left”
            Margin=”10,10,0,0″
            Name=”comboBox1″
            VerticalAlignment=”Top”
            Width=”120″
            ItemsSource=”{Binding MyDataColumns}”
            DisplayMemberPath=”ColumnName”
            />
 
CODE BEHIND
—-
 
public partial class Window1 : Window
{
    public Window1()
    {
        InitializeComponent();
        LoadData();
        DataContext = this;
    }
 
    private DataTable _dataTable = null;
 
    private void LoadData()
    {
        SqlConnection cn = null;
        SqlCommand cmd = null;
        SqlDataAdapter adapter = null;
        DataSet dataSet = null;
 
        try
        {
            cn = new SqlConnection(“Data Source=MyMachine;Initial Catalog=MyDb;Integrated Security=True”);
            cmd = new SqlCommand(“select top 1 * from MyTable”, cn);
            adapter = new SqlDataAdapter(cmd);
            dataSet = new DataSet();
 
            adapter.Fill(dataSet);
 
            _dataTable = dataSet.Tables[0];
        }
        finally
        {
            if (cmd != null)
                cmd.Dispose();
 
            if (adapter != null)
                adapter.Dispose();
 
            if (dataSet != null)
                dataSet.Dispose();
 
            if (cn != null)
                cn.Dispose();
        }           
    }
 
    public IEnumerable MyDataColumns
    {
        get
        {
            return (IEnumerable)_dataTable.Columns;
        }
    }
}

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