Script message not showing - clientscript

Question

Page script keeps on running, doesn't shows message "Your request has been submitted successfully" as mentioned in my below. Can anyone please help what I am missing here?
protected void Button1_Click1(object sender, EventArgs e)
{
string constring = System.Configuration.ConfigurationManager.ConnectionStrings["GerpConnStr"].ConnectionString;
SqlConnection con = new SqlConnection(constring);
string name = System.Web.HttpContext.Current.User.Identity.Name;
string domain = name.Substring(+13);
try
{
con.Open();
SqlCommand cmd = con.CreateCommand();
SqlCommand cmd1 = new SqlCommand("SELECT max(ID) as maxReq FROM request", con);
cmd1.CommandType = CommandType.Text;
int result = ((int)cmd1.ExecuteScalar());
int req = result + 1;
if (FileUpload1.HasFile)
{
string extension1 = Path.GetExtension(FileUpload1.PostedFile.FileName);
string attachment = (FileUpload1.FileName + '_' + req + extension1);
cmd.CommandType = CommandType.Text;
string dt2 = DateTime.Now.ToString("yyyyMMddHHmmss");
DateTime time = DateTime.Now;
cmd.CommandText = "insert into request (request_type,request_area,subject,description,requestor,req_status,attachment,request_time) values('" + DropDownList1.SelectedValue + "','" + DropDownList2.SelectedValue + "','" + TextBox1.Text + "','" + TextArea1.InnerText + "','" + Label3.Text + "','" + "Open" + "','" + attachment + "','" + time + "')";
string saveDir = #"\upload\" + Server.HtmlEncode(FileUpload1.FileName);
string dt = DateTime.Now.ToString("MM_dd_yyyy_hh_mm_ss") + "_";
string appPath = Request.PhysicalApplicationPath;
string extension = Path.GetExtension(FileUpload1.PostedFile.FileName);
string savePath = appPath + saveDir +
Server.HtmlEncode(FileUpload1.FileName);
string saveSess = saveDir + dt +
Server.HtmlEncode(FileUpload1.FileName);
FileUpload1.SaveAs(saveDir + '_' + req + extension);
// Label4.Text = "Your request has been submitted successfully";
string message = "Your request has been submitted successfully";
string script = "window.onload = function(){ alert('";
script += message;
script += "');";
script += "window.location = '";
script += Request.Url.AbsoluteUri;
script += "'; }";
ClientScript.RegisterStartupScript(this.GetType(), "SuccessMessage", script, true);
Session["sessimage1"] = saveSess;
// CreateMailItem();
} //if
else
{
// string extension1 = Path.GetExtension(FileUpload1.PostedFile.FileName);
// string attachment = (FileUpload1.FileName + '_' + req + extension1);
// SqlCommand cmd1 = con.CreateCommand();
cmd.CommandType = CommandType.Text;
DateTime time = DateTime.Now;
// string dt1 = DateTime.Now.ToString("yyyyMMddHHmmss");
cmd.CommandText = "insert into request (request_type,request_area,subject,description,requestor,req_status,request_time) values('" + DropDownList1.SelectedValue + "','" + DropDownList2.SelectedValue + "','" + TextBox1.Text + "','" + TextArea1.InnerText + "','" + Label3.Text + "','" + "Open" + "','" + time + "')";
// Label4.Text = "Your request has been submitted successfully";
string message = "Your request has been submitted successfully";
string script = "window.onload = function(){ alert('";
script += message;
script += "');";
script += "window.location = '";
script += Request.Url.AbsoluteUri;
script += "'; }";
ClientScript.RegisterStartupScript(this.GetType(), "SuccessMessage", script, true);
// Response.Redirect(Request.Url.AbsoluteUri);
// EmptyTextBoxes(TextBox1.Text);
// this.Controls.Clear();
// this.InitializeComponent();
} //else
// SaveFile(FileUpload1.PostedFile);
cmd.ExecuteNonQuery();
cmd1.ExecuteNonQuery();
con.Close();
} //try
catch
{
Console.WriteLine("Insert failed");
Console.Read();
}
finally
{
con.Close();
}
CreateMailItem();
} //button1

Answer 1

Its solved now. Its was getting error at Console.Read() in CreateMailItem(). Thats why it was never going back to Button1_Click1(object sender, EventArgs e) to post the message of successful submission. I have omitted Console.Read() and now the execution of CreateMailItem() gets completed and control gets back to Button1_Click1(object sender, EventArgs e) to post the message of successful submission.
Updated part:
catch
{
Console.WriteLine("Insert failed");
//Console.Read();
}