class/System.Web.Mvc/System.Web.Mvc/ViewDataDictionary`1.cs

   1 /* ****************************************************************************
   2  *
   3  * Copyright (c) Microsoft Corporation. All rights reserved.
   4  *
   5  * This software is subject to the Microsoft Public License (Ms-PL).
   6  * A copy of the license can be found in the license.htm file included
   7  * in this distribution.
   8  *
   9  * You must not remove this notice, or any other, from this software.
  10  *
  11  * ***************************************************************************/
  12
  13 namespace System.Web.Mvc {
  14     using System;
  15     using System.Globalization;
  16     using System.Web.Mvc.Resources;
  17
  18     public class ViewDataDictionary<TModel> : ViewDataDictionary where TModel : class {
  19         public ViewDataDictionary() :
  20             base() {
  21         }
  22
  23         public ViewDataDictionary(TModel model) :
  24             base(model) {
  25         }
  26
  27         public ViewDataDictionary(ViewDataDictionary viewDataDictionary) :
  28             base(viewDataDictionary) {
  29         }
  30
  31         public new TModel Model {
  32             get {
  33                 return (TModel)base.Model;
  34             }
  35             set {
  36                 SetModel(value);
  37             }
  38         }
  39
  40         protected override void SetModel(object value) {
  41             TModel model = value as TModel;
  42
  43             // If there was a value but the cast failed, throw an exception
  44             if ((value != null) && (model == null)) {
  45                 throw new InvalidOperationException(
  46                     String.Format(CultureInfo.CurrentUICulture,
  47                         MvcResources.ViewDataDictionary_WrongTModelType, value.GetType(), typeof(TModel)));
  48             }
  49
  50             base.SetModel(value);
  51         }
  52     }
  53 }