Displaying the username after login not working

Question

I am having trouble displaying the username after login on my index page.

The code I have for Logging in:

protected void btnLoginButton_Click(object send         


        

Answer 1

protected void btnLoginButton_Click(object sender, EventArgs e)
{
    if (Membership.ValidateUser(UserName.Text, Password.Text))
    {
        WelcomeBackMessage.Text = User.Identity.Name.ToString();
        // Log the user into the site
        Response.Redirect("~/Index.aspx");

Place WelcomeBackMessage label in master page and try this code.