ActivityWithResultWrapper.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 / ActivityWithResultWrapper.cs / 1305376 / ActivityWithResultWrapper.cs
                        

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

namespace System.Activities 
{
    using System.Collections.Generic; 
    using System.Runtime; 

    // This wrapper is used to make our "new Expression" and "new Default" APIs 
    // work correctly even if the expression set on the base class doesn't
    // match.  We'll log the error at cache metadata time.
    class ActivityWithResultWrapper : CodeActivity, Argument.IExpressionWrapper
    { 
        ActivityWithResult expression;
 
        public ActivityWithResultWrapper(ActivityWithResult expression) 
        {
            this.expression = expression; 
        }

        ActivityWithResult Argument.IExpressionWrapper.InnerExpression
        { 
            get
            { 
                return this.expression; 
            }
        } 

        protected override void CacheMetadata(CodeActivityMetadata metadata)
        {
            // If we've gotten here then argument validation has already 
            // logged a validation error.
        } 
 
        protected override T Execute(CodeActivityContext context)
        { 
            Fx.Assert("We'll never get here!");

            return default(T);
        } 
    }
} 

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

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