.NET Framework Task Parallel Library (TPL) API Overviews Perform work in response to a button click and update the UI
Example
This example demonstrates how you can respond to a button click by performing some work on a worker thread and then update the user interface to indicate completion
void MyButton_OnClick(object sender, EventArgs args)
{
Task.Run(() => // Schedule work using the thread pool
{
System.Threading.Thread.Sleep(5000); // Sleep for 5 seconds to simulate work.
})
.ContinueWith(p => // this continuation contains the 'update' code to run on the UI thread
{
this.TextBlock_ResultText.Text = "The work completed at " + DateTime.Now.ToString()
},
TaskScheduler.FromCurrentSynchronizationContext()); // make sure the update is run on the UI thread.
}
