mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Converters/VisualBasicValueSearchableStringConverter.cs

   1 //----------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //----------------------------------------------------------------
   4
   5 namespace System.Activities.Presentation.Converters
   6 {
   7     using System;
   8     using System.Collections.Generic;
   9     using Microsoft.VisualBasic.Activities;
  10
  11     class VisualBasicValueSearchableStringConverter : SearchableStringConverter
  12     {
  13         public override IList<string> Convert(object value)
  14         {
  15             if (value == null)
  16             {
  17                 throw FxTrace.Exception.AsError(new ArgumentNullException("value"));
  18             }
  19
  20             IList<string> results = new List<string>();
  21             Type t = value.GetType();
  22             if (t.IsGenericType && t.GetGenericTypeDefinition() == typeof(VisualBasicValue<>))
  23             {
  24                 results.Add(ExpressionHelper.GetExpressionString(value as Activity));
  25             }
  26             return results;
  27         }
  28     }
  29 }