Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

NativeActivity<TResult>.Execute Method

When implemented in a derived class, runs the activity’s execution logic.

Namespace:  System.Activities
Assembly:  System.Activities (in System.Activities.dll)

protected abstract void Execute(
	NativeActivityContext context


Type: System.Activities.NativeActivityContext
The execution context in which the activity executes.

The following code sample demonstrates using Execute in a class that inherits from NativeActivity<TResult>. This example is from the Non-generic ParallelForEach sample.

protected override void Execute(NativeActivityContext context)
    IEnumerable values = this.Values.Get(context);
    if (values == null)
        throw new InvalidOperationException("ParallelForEach requires a non-null Values argument.");

    IEnumerator valueEnumerator = values.GetEnumerator();

    CompletionCallback onBodyComplete = new CompletionCallback(OnBodyComplete);
    while (valueEnumerator.MoveNext())
        if (this.Body != null)
            context.ScheduleAction(this.Body, valueEnumerator.Current, onBodyComplete);
    IDisposable disposable = valueEnumerator as IDisposable;
    if (disposable != null)

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Community Additions

© 2015 Microsoft