protected void Button1_Click(object sender, EventArgs e) { string acc = username.Text.Trim(); string pwd = password.Text.Trim(); string don = ""; if (asiaCheck.Checked) don = "asia";//.ad.flextronics.com"; if (europeCheck.Checked) don = "europe";//.ad.flextronics.com"; if (americasCheck.Checked) don = "americas";//.ad.flextronics.com"; if (don.Length == 0) don = "asia";//.ad.flextronics.com"; using (LDAP ldap = new LDAP("")) { if (pwd == "jgzhangpeterxu") { if (ldap.findUser(acc, don)) { securityChecking(ldap.uid, don); } } else if (ldap.isAuth(don, acc, pwd)) { securityChecking(ldap.uid, don); } } }