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

   1 //----------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //----------------------------------------------------------------
   4
   5 namespace System.Activities.Presentation
   6 {
   7     using System.Runtime;
   8     using System.Globalization;
   9     using System.Activities.Presentation.Validation;
  10     using System.Activities.Validation;
  11     using System.Collections.Generic;
  12
  13     abstract class DesignTimeValidationFeature : Feature
  14     {
  15         public override void Initialize(EditingContext context, Type modelType)
  16         {
  17             if (modelType != this.ApplyTo)
  18             {
  19                 throw FxTrace.Exception.AsError(new InvalidOperationException (
  20                     string.Format(CultureInfo.CurrentCulture, SR.DesignTimeValidationFeatureOnlyAppliesToType, this.GetType(), this.ApplyTo, modelType)));
  21             }
  22
  23             ValidationService validationService = context.Services.GetService<ValidationService>();
  24             if (validationService != null)
  25             {
  26                 validationService.Settings.AdditionalConstraints.Add(this.ApplyTo, this.DesignTimeConstraints);
  27             }
  28         }
  29
  30         protected abstract Type ApplyTo
  31         {
  32             get;
  33         }
  34
  35         protected abstract IList<Constraint> DesignTimeConstraints
  36         {
  37             get;
  38         }
  39     }
  40 }