DC_Initlizer/AwInitilizer/SigninDialog.xaml.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace AwInitilizer
{
    /// <summary>
    /// Interaction logic for SigninDialog.xaml
    /// </summary>
    public partial class SigninDialog : Window
    {
        public string UserId { get; private set; } = "";
        public string WorkOrder { get; private set; } = "";

        public SigninDialog()
        {
            InitializeComponent();
        }

        private void OK_Pressed(object sender, RoutedEventArgs e)
        {
            if(string.IsNullOrEmpty(uxIdBox.Text))
            {
                uxErrmsg.Visibility = Visibility.Visible;
                return;
            }

            string id = uxIdBox.Text;
            string idBackup = id;
            if (DLL.SajetConnect.SajetTransSignIn(ref id))
            {
                if (string.IsNullOrEmpty(id) || id.StartsWith("NG"))
                {
                    uxErrmsg.Content = "ID Error";
                    uxErrmsg.Visibility = Visibility.Visible;
                    return;
                }

                UserId = idBackup;
            }
            else
            {
                uxErrmsg.Content = "ID Error";
                uxErrmsg.Visibility = Visibility.Visible;
                return;
            }

            if (!string.IsNullOrEmpty(uxWorkOrderBox.Text))
            {
                string workOrder = uxWorkOrderBox.Text;
                if (DLL.SajetConnect.SajetTransWoCheck(ref workOrder))
                {
                    if (string.IsNullOrEmpty(workOrder) || workOrder.StartsWith("NG"))
                    {
                        uxErrmsg.Content = "WorkOrder Error";
                        uxErrmsg.Visibility = Visibility.Visible;
                        return;
                    }

                    WorkOrder = workOrder;
                }
                else
                {
                    uxErrmsg.Content = "WorkOrder Error";
                    uxErrmsg.Visibility = Visibility.Visible;
                    return;
                }
            }

            DialogResult = true;
            this.Close();
            return;
        }
    }
}