Client OM Delete in SharePoint 2010 Programmatically Using VS 2012

Introduction

Today, in this article let's play around with one of the interesting and most useful concepts in SharePoint 2010.

Question: What is ClientOMDelete?

In simple terms "To delete the data from client side environment for SharePoint applications, this is used".

Step 1: Open Visual Studio 2012 and select "ASP.Net Web Forms Application", as in:

Now two references need to be added to the application; they are:

Microsoft.SharePoint.Client

Microsoft.SharePoint.Client.Runtime

Step 2: The complete code of webform1.aspx looks like this:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="ClientOMDeletion.WebForm1" %>

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<center>
<div>
<table style="text-align: center">
<tr>
<td colspan="2">
<asp:Label ID="Label1" runat="server" Text="Client Object Model Deletion - SharePoint 2010 Programatically"
Font-Bold="true" Font-Size="Large" Font-Names="Verdana" ForeColor="Maroon"></asp:Label>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label4" runat="server" Text="Please Enter List Name" Font-Size="Large"
Font-Names="Verdana" Font-Italic="true"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox4" runat="server" Width="117px"></asp:TextBox>
</td>
</tr>
<tr>
<td>
<asp:Label ID="Label7" runat="server" Text="Please Enter ID" Font-Size="Large" Font-Names="Verdana"
Font-Italic="true"></asp:Label>
</td>
<td>
<asp:TextBox ID="TextBox5" runat="server" Width="117px"></asp:TextBox>
</td>
</tr>
<tr>
<td colspan="2">
<br />
<asp:Button ID="Button1" runat="server" Text="Delete Data" Font-Names="Verdana" Width="282px"
BackColor="Orange" Font-Bold="True" OnClick="Button1_Click" />
</td>
</tr>
<tr>
<td colspan="2">
<br />
<asp:Label ID="Label5" runat="server" Font-Bold="true" Font-Names="Verdana"></asp:Label>
</td>
</tr>
</table>
</div>
</center>
</form>
</body>
</html>

Step 3: The complete code of webform1.aspx.cs looks like this:

using Microsoft.SharePoint.Client;

using System;

using System.Collections.Generic;

using System.Linq;

using System.Web;

using System.Web.UI;

using System.Web.UI.WebControls;

namespace ClientOMDeletion

{

public partial class WebForm1 : System.Web.UI.Page

{

protected void Page_Load(object sender, EventArgs e)

{

TextBox4.Focus();

}

protected void Button1_Click(object sender, EventArgs e)

{

if (string.IsNullOrEmpty(TextBox4.Text) || string.IsNullOrEmpty(TextBox5.Text))

{

Label5.Text = "Please Enter Some Values";

Label5.ForeColor = System.Drawing.Color.Red;

}

else

{

ClientContext objContext = new ClientContext("http://win-5c3g1lanj3k:46908/");

List list = objContext.Web.Lists.GetByTitle(TextBox4.Text);

Microsoft.SharePoint.Client.ListItem item = list.GetItemById(TextBox5.Text);

item.DeleteObject();

objContext.ExecuteQuery();

Label5.Text = "Data deleted Successfully";

Label5.ForeColor = System.Drawing.Color.Green;

TextBox4.Text = string.Empty;

TextBox5.Text = string.Empty;

}

Step 4: The output of the application looks like this:

Step 5: Data entering output of the application looks like this:

Step 6: The output of the list on SharePoint application looks like this:

I hope this article is useful for you.