Wpf asynchronously updates viewer data in presenter (VM)

In MVP or MVVM mode, VM and Presenter exchange data with Viewer through binding. In actual projects, you often need to dynamically refresh the interface data. I usually refresh the bound property changes. However, asynchronous updates are required when the data volume is large or the number of updates is frequent. The following provides a safer method to achieve this purpose.
 
First, define the distributor. It provides services for managing thread work item queues
Private readonly Dispatcher _ dispatcher = Dispatcher. CurrentDispatcher;
 
Second, define the timer.

_ DataUpdateTimer = new DispatcherTimer ();
_ DataUpdateTimer. Interval = new TimeSpan (0, 0, 0, 0,500 );
_ DataUpdateTimer. Tick + = new EventHandler (OnUpdateTimerTick );
ID of the recording thread
_ ThreadId = Thread. CurrentThread. ManagedThreadId;
The last part is the update part. The main function is to assign a random value to the binding attribute on the interface.
Private readonly Random _ random = new Random (int) DateTime. Now. Ticks );
Private void OnUpdateTimerTick (object sender, EventArgs e)
{
If (_ threadId = Thread. CurrentThread. ManagedThreadId) return;
// The CheckAccess method can verify whether the thread can be accessed;
// When using Winform, SelfSynchronizationContext = SynchronizationContext. Current & InvokeRequired = false
If (! _ Dispatcher. CheckAccess ())
{
_ Dispatcher. BeginInvoke (new ThreadStart () =>
{
UIValue = _ random. NextDouble () * 10000/DateTime. Now. Millisecond;
}), Null );
Return;
}
UIValue = _ random. NextDouble () * 10000/DateTime. Now. Millisecond;
}