Introduction
Today, in this article let's play around with one of the interesting and most
useful concept in OData.
Question: What is select data from SharePoint list using OData Service?
In simple terms "It provides flexibility to pull out the data with helps of data
services from SharePoint list".
Step 1: Create a new custom list on SharePoint site
![Output1.png]()
Step 2: Browse the OData Service .svc on SharePoint
![Output2.png]()
Step 3: Create a new web application to existing application
![Output3.png]()
Step 4: Add a service reference to the newly created web application
![Output4.png]()
Step 5: The complete code of WebForm1.aspx looks like this
<%@
Page Language="C#"
AutoEventWireup="true"
CodeBehind="WebForm1.aspx.cs"
Inherits="SelectODataSPApp.WebForm1"
%>
<!DOCTYPE
html PUBLIC
"-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html
xmlns="http://www.w3.org/1999/xhtml">
<head
id="Head1" runat="server">
<style type="text/css">
.grid
{
margin-top: 50px;
}
</style>
<title></title>
</head>
<body>
<form id="form1"
runat="server">
<center>
<div>
<table>
<tr>
<td
colspan="2"
align="center">
<asp:Label
ID="Label1"
runat="server"
Text="Select
Data from SharePoint List using OData Service"
Font-Bold="true"
Font-Size="Large"
Font-Names="Verdana"
ForeColor="Maroon"></asp:Label>
</td>
</tr>
<tr>
<td
colspan="2"
align="center">
<asp:Button
ID="Button1"
runat="server"
Text="Select Data"
Font-Names="Verdana"
Width="213px"
BackColor="Orange"
Font-Bold="True"
OnClick="Button1_Click"
/>
</td>
</tr>
<tr>
<td
colspan="2"
align="center">
<asp:GridView
ID="GridView1"
runat="server"
BackColor="#DEBA84"
BorderColor="#DEBA84"
BorderStyle="None"
BorderWidth="1px"
CellPadding="3"
CellSpacing="2"
EnableModelValidation="True"
AutoGenerateColumns="False">
<FooterStyle
BackColor="#F7DFB5"
ForeColor="#8C4510"
/>
<HeaderStyle
BackColor="#A55129"
Font-Bold="True"
ForeColor="White"
/>
<PagerStyle
ForeColor="#8C4510"
HorizontalAlign="Center"
/>
<RowStyle
BackColor="#FFF7E7"
ForeColor="#8C4510"
/>
<SelectedRowStyle
BackColor="#738A9C"
Font-Bold="True"
ForeColor="White"
/>
<Columns>
<asp:BoundField
DataField="ID"
HeaderText="Student Id"
ReadOnly="true"
SortExpression="Id"
/>
<asp:BoundField
DataField="FirstName"
HeaderText="First Name"
ReadOnly="true"
/>
<asp:BoundField
DataField="LastName"
HeaderText="Last Name"
ReadOnly="true"
/>
<asp:BoundField
DataField="Age"
HeaderText="Age"
ReadOnly="true"
/>
</Columns>
</asp:GridView>
</td>
</tr>
</table>
</div>
</center>
</form>
</body>
</html>
Step 6: The complete code of WebForm1.aspx.cs looks like this
using
System;
using
System.Collections.Generic;
using
System.Linq;
using
System.Web;
using
System.Web.UI;
using
System.Web.UI.WebControls;
using
SelectODataSPApp.ServiceReference1;
namespace
SelectODataSPApp
{
public partial
class WebForm1 : System.Web.UI.Page
{
protected void
Page_Load(object sender, EventArgs e)
{
}
protected void
Button1_Click(object sender, EventArgs e)
{
MainSiteDataContext objContext = new
MainSiteDataContext(new Uri("http://win-kv3bo1rqqf7:24144/_vti_bin/ListData.svc"));
objContext.Credentials = System.Net.CredentialCache.DefaultCredentials;
GridView1.DataSource = objContext.Student.ToList();
GridView1.DataBind();
}
}
}
Step 7: The output of the application looks like this
![Output5.png]()
Step 8: The selected data output of the application looks like this
![Output6.png]()