//Check input and test connection private void BLogin_Click(object sender, EventArgs e) { if (Err.IsAllDigits(TBPort.Text)) { DBCall.InitMySQL(TBIP.Text, Convert.ToUInt32(TBPort.Text), TBUser.Text, TBPass.Text, TBDB.Text); if (DBCall.logres) { loggedin = true; Close(); } } }