mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/View/VisualBasicReferenceValidationFeature.cs

   1 // <copyright>
   2 //   Copyright (c) Microsoft Corporation.  All rights reserved.
   3 // </copyright>
   4
   5 namespace System.Activities.Presentation.View
   6 {
   7     using System.Activities.Presentation.Validation;
   8     using System.Activities.Validation;
   9     using System.Collections.Generic;
  10     using System.Collections.ObjectModel;
  11     using System.Runtime;
  12     using Microsoft.Activities.Presentation;
  13     using Microsoft.VisualBasic.Activities;
  14
  15     internal class VisualBasicReferenceValidationFeature : Feature
  16     {
  17         private static readonly Type VisualBasicReferenceType = typeof(VisualBasicReference<>);
  18
  19         public override void Initialize(EditingContext context, Type modelType)
  20         {
  21             Fx.Assert(
  22                 modelType.IsGenericType && (modelType.GetGenericTypeDefinition() == VisualBasicReferenceType),
  23                 "This Feature should only apply to VisualBasicReference<>");
  24
  25             ValidationService validationService = context.Services.GetService<ValidationService>();
  26             if (validationService != null && WorkflowDesigner.GetTargetFramework(context).IsLessThan45())
  27             {
  28                 validationService.Settings.AdditionalConstraints.Add(VisualBasicReferenceType, new List<Constraint> { VisualBasicDesignerHelper.NameShadowingConstraint });
  29             }
  30         }
  31     }
  32 }