ASP.NET

protected void Page_Load(object sender, EventArgs e)
{
    string hey = "<script language=JavaScript>alert(\"Agh!\");</script>";
    this.RegisterClientScriptBlock("key", hey);

... much snipped for brevity ...

 ... in Page_Load():

    Button saveStart = new Button();
    saveStart.Text = "Save";
    saveStart.Click += new System.EventHandler(Save_Click);
}

protected void Save_Click(object sender, EventArgs e)
{
    CheckInitialization();

... much snipped for brevity...

protected void CheckInitialization()
{
    if (i == 64)
    {
        string hey = "<script language=JavaScript>alert(\"Agh!\");</script>";
        this.RegisterClientScriptBlock("key", hey);

... much snipped for brevity...

Type type = BuildManager.GetCompiledType("~/Page2.aspx");
if (type != null)
{
     Page myPage = (Page)Activator.CreateInstance(type);
     myPage.ProcessRequest(HttpContext.Current);
}

private void getControlList(System.web.UI.Control control, ArrayList resultCollection)
{
     foreach (System.Web.UI.Control childControl in control.Controls)
     {
          System.Web.UI.WebControls.WebControl webControl = childControl as System.Web.UI.WebControls.WebControl;
          if (webControl != null)
          {
               resultCollection.Add(control.ID);
          }
          if (control.HasControls())
          {
               getControlList(control, resultCollection);
          }
     }
}

I have 2 textboxes and a button. for texbox 1 i have used a handler for autocompletion from database. and using javascript on key pressing "enter" key the focus changes to textbox 2.. in textbox2 textchanged event i am checking a value in database corresponding to the values in textbox1.

so on post back the focus is set to textbox1. i want to be on button1.

$(document).ready(function() {
       $("#<%=textbox1.ClientID%>").autocomplete('../wholesalers/Handler.ashx');
   });


   $(function() {
       $('input:text:first').focus();
       var $inp = $('input:text');
       $inp.bind('keydown', function(e) {
           //var key = (e.keyCode ? e.keyCode : e.charCode);
           var key = e.which;
           if (key == 13) {
               e.preventDefault();
               var nxtIdx = $inp.index(this) + 1;
               $(":input:text:eq(" + nxtIdx + ")").focus();
           }
       });
   });

protected void Page_Load(object sender, EventArgs e)
    {
        lbl_Wname.Text = Request.QueryString["name"];
        if (!IsPostBack)
        {
            textbox1.Attributes.Add("onkeypress", "returnSetfocus(event,'" + textbox1.ClientID + "')");
        }
        else
        {
            button1.Focus();
        }
    }

protected void textbox2_TextChanged(object sender, EventArgs e)
   {
       if (textbox2.Text == "" || textbox2 == null)
{
           ScriptManager.RegisterStartupScript(this, GetType(), "error", "alert('Enter Quantity');", true);
       }
       else
       {


           MySqlConnection mcn = new MySqlConnection("server=localhost;---------------------");
           mcn.Open();
           MySqlCommand cmd = new MySqlCommand();
           cmd.CommandText = "searchp";
           cmd.CommandType = CommandType.StoredProcedure;
           cmd.Connection = mcn;
           cmd.Parameters.Add("p_product_name", MySqlDbType.VarChar).Value =textbox1.Text;
           DataTable dt = new DataTable();
           MySqlDataAdapter ada = new MySqlDataAdapter(cmd);
           ada.Fill(dt);
           if (dt.Rows.Count > 0)
           {
               string sts = dt.Rows[0]["status"].ToString();
               if (sts == "available")
               {
                   Image1.ImageUrl = "~/images/tick.gif";
               }
               if (sts == "not-available")
               {
                   Image1.ImageUrl = "~/images/cross.gif";
               }
           }
           button1.Focus();
       }
    }