private void btnCreate_Click(object sender, RoutedEventArgs e) { if (tbCustomerName.Text == "") { MessageBox.Show("Please fill out the field"); return; } string name = tbCustomerName.Text; WebserviceObject wsObj = new WebserviceObject(); wsObj = WebserviceCalls.CreateCustomer(name); if (wsObj.Success) { adminControlWindow.GetCustomers(); Close(); } else { MessageBox.Show(wsObj.Response.ToString()); } }