defaultcs.aspx.cs

Telerik是很大的第三方软件制造商

using System;
using System.Collections;
using System.ComponentModel;
using System.Data;
using System.Data.OleDb;
using System.Drawing;
using System.Web;
using System.Web.SessionState;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.HtmlControls;
using Telerik.QuickStart;
using Telerik.WebControls;

namespace Telerik.CallbackExamplesCSharp.Controls.GenericCallback
{
	/// <summary>
	/// Summary description for _Default.
	/// </summary>
	public class DefaultCS: XhtmlPage
	{
		protected System.Web.UI.WebControls.Label lblDescription;
		protected System.Web.UI.WebControls.Panel Panel1;
		protected Telerik.WebControls.RadCallback callback1;
		protected System.Web.UI.WebControls.Label label11;
		protected System.Web.UI.WebControls.Label statusLabel;
		protected System.Web.UI.WebControls.Label Label1;
		protected System.Web.UI.WebControls.Label Label2;
		protected Telerik.WebControls.RadCallback RadCallback2;
		protected System.Web.UI.HtmlControls.HtmlImage Img1;
		protected Telerik.WebControls.LoadingPanel LoadingPanel1;
		protected System.Web.UI.HtmlControls.HtmlImage Img2;
		protected Telerik.WebControls.RadCallback RadCallback1;

		private void Page_Load(object sender, System.EventArgs e)
		{
			
		}

		#region Web Form Designer generated code
		override protected void OnInit(EventArgs e)
		{
			//
			// CODEGEN: This call is required by the ASP.NET Web Form Designer.
			//
			InitializeComponent();
			base.OnInit(e);
		}
		
		/// <summary>
		///		Required method for Designer support - do not modify
		///		the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			this.callback1.Callback += new Telerik.WebControls.RadCallback.CallbackEvent(this.callback1_Callback);
			this.Load += new System.EventHandler(this.Page_Load);

		}
		#endregion		

		private string GetDescription(string name)
		{
			string path = Server.MapPath("~/Callback/data/descriptions.mdb");
			OleDbConnection dbCon = new OleDbConnection ("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + path); 
			dbCon.Open();
			string descr = string.Empty;
			try
			{
				OleDbCommand command = new OleDbCommand("SELECT description FROM descriptions WHERE name=\"" + name + "\"", dbCon);
				descr = (string) command.ExecuteScalar();		
			}
			finally
			{
				dbCon.Close();
			}
			return descr;
		}

		private void callback1_Callback(object sender, Telerik.WebControls.CallbackEventArgs args)
		{	
			string description = GetDescription(args.CallbackEvent);
			lblDescription.Text = description;			
			callback1.ControlsToUpdate.Add(lblDescription);
		}
		


	}
}