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//-----------------------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//-----------------------------------------------------------------------------
namespace System.Activities.Validation
{
using System;
using System.Collections.Generic;
using System.Runtime;
public sealed class GetParentChain : CodeActivity<IEnumerable<Activity>>
{
public GetParentChain()
: base()
{
}
public InArgument<ValidationContext> ValidationContext
{
get;
set;
}
protected override IEnumerable<Activity> Execute(CodeActivityContext context)
{
Fx.Assert(this.ValidationContext != null, "ValidationContext must not be null");
ValidationContext currentContext = this.ValidationContext.Get(context);
if (currentContext != null)
{
return currentContext.GetParents();
}
else
{
return ActivityValidationServices.EmptyChildren;
}
}
}
}
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