added Revit 2022 SDK minus except *rvt and *rfa

SDK/Samples/UIAPI/CS/OptionsDialog/UserControl2.xaml.cs

@@ -0,0 +1,54 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+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.Navigation;
+using System.Windows.Shapes;
+
+using Autodesk.Revit.DB;
+using Autodesk.Revit.UI;
+using RApplication = Autodesk.Revit.ApplicationServices.Application;
+
+namespace Revit.SDK.Samples.UIAPI.CS
+{
+   /// <summary>
+   /// Interaction logic for UserControl2.xaml
+   /// </summary>
+   public partial class UserControl2 : UserControl
+   {
+      public UserControl2(String name)
+      {
+         InitializeComponent();
+         _name = name;
+      }
+
+      private void onbtn_click(object sender, RoutedEventArgs e)
+      {
+         TaskDialog.Show("Hello", _name);
+      }
+
+      public void OnOK()
+      {
+         TaskDialog.Show("OK", _name);
+      }
+
+      public void OnCancel()
+      {
+         TaskDialog.Show("OnCancel", _name);
+      }
+
+      public void OnRestoreDefaults()
+      {
+         TaskDialog.Show("OnRestoreDefaults", _name);
+      }
+
+      String _name;
+   }
+}