protected void btnLogin_Click(object sender, EventArgs e) { string username = txtUsername.Text; string password = txtPassword.Text; if (SQLProcedures.CheckIfAdmin(username, password)) { lblIncorrectLogin.Visible = false; Response.Redirect("MainPage.aspx"); } else { txtUsername.Text = string.Empty; txtUsername.Focus(); lblIncorrectLogin.Visible = true; } }