Change parameters of SqlDataSource in your own code
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="SqlDataSourceLimits" %>
Untitled Page
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;
using System.Data.SqlClient;
public partial class SqlDataSourceLimits : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
lstCities.DataSource = sourceEmployeeCities.Select(DataSourceSelectArguments.Empty);
lstCities.DataBind();
lstCities.Items.Insert(0, "(Choose a City)");
lstCities.Items.Insert(1, "(All Cities)");
lstCities.SelectedIndex = 0;
}
}
protected void sourceEmployees_Selecting(object sender, SqlDataSourceSelectingEventArgs e)
{
if ((string)e.Command.Parameters["@City"].Value == "(Choose a City)")
{
e.Cancel = true;
}
else if ((string)e.Command.Parameters["@City"].Value == "(All Cities)")
{
e.Command.CommandText = "SELECT * FROM Employees";
}
}
}
File: Web.config