Page redirect after submit button has been clicked

[zizi2]

I have a form that I want to redirect to another page after clicking the submit button. It works well (please see the code below) except that it cancells my pop-up message, it goes the redirected page without showing the popup. Please help:

private void Submit_Click(object sender, System.EventArgs e)
{
   if( filMyFile.PostedFile.ContentLength != 0 )
       {
 
    string strFilename;  
                strFilename = filMyFile.PostedFile.FileName;    
                strFilename =    System.IO.Path.GetFileName(strFilename);
 
    filMyFile.PostedFile.SaveAs(@"C:\Advert_images\"+strFilename);
         }
           else
    {
        // No file
 
 
    }
 
 
string status;
string image_name;  
image_name = filMyFile.PostedFile.FileName;
image_name = System.IO.Path.GetFileName(image_name);
status = "unverified";    
SqlConnection con = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionString"]);
SqlCommand cmd =  new SqlCommand("Add_advert_new", con);
cmd.CommandType = CommandType.StoredProcedure;
con.Open();
cmd.Parameters.Add("@Title",SqlDbType.VarChar);
cmd.Parameters["@Title"].Value = txtTitle.Text;
cmd.Parameters.Add("@Expiry_date",SqlDbType.DateTime);
cmd.Parameters["@Expiry_date"].Value = Session["SelectedDate"].ToString();
cmd.Parameters.Add("@Description",SqlDbType.Text );
cmd.Parameters["@Description"].Value = txtDescr.Text;
cmd.Parameters.Add("@Added_by",SqlDbType.VarChar );
cmd.Parameters["@Added_by"].Value = Session["Name"].ToString();
cmd.Parameters.Add("@Surname",SqlDbType.VarChar );
cmd.Parameters["@Surname"].Value = Session["SName"].ToString();
cmd.Parameters.Add("@status",SqlDbType.VarChar );
cmd.Parameters["@status"].Value = status;
cmd.Parameters.Add("@image_name",SqlDbType.VarChar );
cmd.Parameters["@image_name"].Value = image_name;
 
cmd.ExecuteNonQuery();
con.Close();
 
 Response.Write(@"<script language='javascript'>alert('Advert has been uploaded but it will be verified by the webmaster fisrt before it can be displayed. Have a nice day!')</script>");
 
 
 
SmtpMail.SmtpServer = ConfigurationSettings.AppSettings["EmailServer"];
            string strTo = "[e-mail]";
            string strFrom = "[e-mail]";
 
            string strSubject = "New advert to be verified";
 
            SmtpMail.Send(strFrom, strTo, strSubject,
                "A new advert has been loaded, please click on the link http://jhb-ds-web1/scmnet/doc/verifyadverts.aspx  to verify the advert.");
 
 
Response.Redirect("classifieds_1.aspx");
}

[Bassem]

The only reason I know that ASP.NET events take action first (higher priority), I maybe mistaken. To solve this problem you have to set both actions in the same priority so do the redirect using JavaScript instead of ASP.NET.

        Response.Write(@"<script language='javascript'>alert('Advert has been uploaded but it will be verified by the webmaster fisrt before it can be displayed. Have a nice day!')</script>");
 
        Response.Write(@"<script language='javascript'>window.location = 'http://www.google.com'</script>");
 

It should works fine if not please tell me.