mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/EditingContextUtilities.cs

   1 //----------------------------------------------------------------
   2 // <copyright company="Microsoft Corporation">
   3 //     Copyright (c) Microsoft Corporation.  All rights reserved.
   4 // </copyright>
   5 //----------------------------------------------------------------
   6
   7 namespace System.Activities.Presentation
   8 {
   9     using System.Activities.Presentation.Hosting;
  10     using System.Activities.Presentation.Model;
  11     using System.Activities.Presentation.View;
  12     using System.Runtime;
  13
  14     internal static class EditingContextUtilities
  15     {
  16         public static bool IsReadOnly(EditingContext editingContext)
  17         {
  18             Fx.Assert(editingContext != null, "editingContext should not be null");
  19
  20             return editingContext.Items.GetValue<ReadOnlyState>().IsReadOnly;
  21         }
  22
  23         public static ModelItem GetSingleSelectedModelItem(EditingContext editingContext)
  24         {
  25             Fx.Assert(editingContext != null, "editingContext should not be null");
  26
  27             Selection selection = editingContext.Items.GetValue<Selection>();
  28             if (selection.SelectionCount == 1)
  29             {
  30                 return selection.PrimarySelection;
  31             }
  32             else
  33             {
  34                 return null;
  35             }
  36         }
  37     }
  38 }