Use of query string

//In "Source.aspx" On Button Click Event private void BtnGo_Click (object sender, System.EventArgs e) {           string myURL;           //Store Whole Querystring Into The URL String Variable...           myURL="Destination.aspx?UName=" + txtUName.Text;           Response.Redirect(myURL); } //In "Destination.aspx" On Page Load Event private void Page_Load (object sender, System.EventArgs e) {           //Store Value Of UName Into LblUName Lable           LblUName.Text=Request.QueryString["UName"]; }