mcs/class/referencesource/System.Activities.Presentation/System.Activities.Presentation/System/Activities/Presentation/Base/Core/Internal/PropertyEditing/State/CategoryStateContainer.cs

   1 //----------------------------------------------------------------
   2 // Copyright (c) Microsoft Corporation.  All rights reserved.
   3 //----------------------------------------------------------------
   4 namespace System.Activities.Presentation.Internal.PropertyEditing.State
   5 {
   6     using System;
   7     using System.Collections.Generic;
   8     using System.Diagnostics;
   9
  10     // <summary>
  11     // Simple wrapper around a dictionary of CategoryStates keyed by the category names.
  12     // </summary>
  13     internal class CategoryStateContainer : PersistedStateContainer
  14     {
  15
  16         // <summary>
  17         // Gets the CategoryState for the specified category.  If one does not exist
  18         // yet, it will be created automatically, guaranteeing a non-null return value.
  19         // </summary>
  20         // <param name="categoryName">Name of the requested category</param>
  21         // <returns>A non-null instance of CategoryState</returns>
  22         public CategoryState GetCategoryState(string categoryName)
  23         {
  24             return (CategoryState)this.GetState(categoryName);
  25         }
  26
  27         // <summary>
  28         // Creates a default state object based on the specified key
  29         // </summary>
  30         // <param name="key">Key of the state object</param>
  31         // <returns>Default state object</returns>
  32         protected override PersistedState CreateDefaultState(object key)
  33         {
  34             return new CategoryState(key as string);
  35         }
  36
  37         // <summary>
  38         // Deserializes the specified string value into a state object
  39         // </summary>
  40         // <param name="serializedValue">Serialized value of the state object</param>
  41         // <returns>Deserialized instance of the state object</returns>
  42         protected override PersistedState DeserializeState(string serializedValue)
  43         {
  44             return CategoryState.Deserialize(serializedValue);
  45         }
  46     }
  47 }