using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Windows.Forms; namespace UAS_XmlAnalysor { public partial class Login : Form { public Login() { InitializeComponent(); } private void LoginButton_Click(object sender, EventArgs e) { string ErrorMessage = ""; if (LogicHandler.CheckUserLogin(UserName.Text, PassWord.Text, out ErrorMessage)) { } else { MessageBox.Show(ErrorMessage); } } } }