Pass and Get the Query String Value

In the First Page:
  1. protected void buttonSend_Click(object sender, EventArgs e)  
  2. {  
  3.     Response.Redirect("PageName.aspx?UserName=" + txtUserName.Text + "&Password=" + txtPassword.Text);  
  4. }  
In The Second Page
  1. protected void Page_Load(object sender, EventArgs e)  
  2. {  
  3.     if (!IsPostBack)  
  4.     {  
  5.         lblUserName.Text = Request.QueryString["UserName"];  
  6.         lblPassword.Text = Request.QueryString["Password"];  
  7.         Or  
  8.         lblUserName.Text = Request.QueryString[0];  
  9.         lblPassword.Text = Request.QueryString[1];  
  10.     }  
  11. }