BookmarkCallbackWrapper.cs source code in C# .NET

Source code for the .NET framework in C#

                        

Code:

/ 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / NetFx40 / System.Activities / System / Activities / Runtime / BookmarkCallbackWrapper.cs / 1305376 / BookmarkCallbackWrapper.cs

                            //------------------------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------------------------

namespace System.Activities.Runtime 
{
    using System; 
    using System.Runtime; 
    using System.Runtime.Serialization;
    using System.Security; 

    [DataContract]
    class BookmarkCallbackWrapper : CallbackWrapper
    { 
        static Type bookmarkCallbackType = typeof(BookmarkCallback);
        static Type[] bookmarkCallbackParameters = new Type[] { typeof(NativeActivityContext), typeof(Bookmark), typeof(object) }; 
 
        public BookmarkCallbackWrapper(BookmarkCallback callback, ActivityInstance owningInstance)
            : this(callback, owningInstance, BookmarkOptions.None) 
        {
        }

        public BookmarkCallbackWrapper(BookmarkCallback callback, ActivityInstance owningInstance, BookmarkOptions bookmarkOptions) 
            : base(callback, owningInstance)
        { 
            Fx.Assert(callback != null || bookmarkOptions == BookmarkOptions.None, "Either we have a callback or we only allow SingleFire, Blocking bookmarks."); 

            this.Options = bookmarkOptions; 
        }

        [DataMember(EmitDefaultValue = false)]
        public BookmarkOptions Options 
        {
            get; 
            private set; 
        }
 
        [DataMember(EmitDefaultValue = false)]
        public Bookmark Bookmark
        {
            get; 
            set;
        } 
 
        public void Invoke(NativeActivityContext context, Bookmark bookmark, object value)
        { 
            EnsureCallback(bookmarkCallbackType, bookmarkCallbackParameters);
            BookmarkCallback bookmarkCallback = (BookmarkCallback)this.Callback;
            bookmarkCallback(context, bookmark, value);
        } 

        public ActivityExecutionWorkItem CreateWorkItem(ActivityExecutor executor, bool isExternal, Bookmark bookmark, object value) 
        { 
            if (this.IsCallbackNull)
            { 
                return executor.CreateEmptyWorkItem(this.ActivityInstance);
            }
            else
            { 
                return new BookmarkWorkItem(executor, isExternal, this, bookmark, value);
            } 
        } 
    }
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
                        

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