ADO Database ASP.Net

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<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="SqlDataSourceSimple" %>



    Untitled Page


    
    

                                   runat="server" 
                           ProviderName="System.Data.SqlClient" 
                           ConnectionString="<%$ ConnectionStrings:Northwind %>" 
                           SelectCommand="SELECT EmployeeID, FirstName, LastName, Title, City FROM Employees" 
                           OnSelected="sourceEmployees_Selected"/>
                             runat="server" 
                     DataSourceID="sourceEmployees" 
                     DataTextField="EmployeeID" 
                     Width="145px"/>
                              runat="server" 
                      DataSourceID="sourceEmployees" 
                      CellPadding="4" 
                      GridLines="None" 
                      AutoGenerateColumns="False" 
                      DataKeyNames="EmployeeID" 
                      EnableSortingAndPagingCallbacks="True" 
                      PageSize="5">
           
            
            
            
            
            
            
            
                                                HeaderText="EmployeeID" 
                                InsertVisible="False"
                                ReadOnly="True" 
                                SortExpression="EmployeeID" />
                
                
                
                
            
        
                           runat="server" 
                   EnableViewState="False" 
                   Font-Bold="True"
                   Font-Names="Verdana" 
                   Font-Size="Small" ForeColor="Red"/>
    

    


File: Default.aspx.cs
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
public partial class SqlDataSourceSimple : System.Web.UI.Page
{
  protected void sourceEmployees_Selected(object sender, SqlDataSourceStatusEventArgs e)
  {
    if (e.Exception != null)
    {
      lblError.Text = "An exception occured performing the query.";
      e.ExceptionHandled = true;
    }
  }
}
File: Web.config