I am confused about the differences between Dispatcher.CurrentDispatcher.BeginInvoke and BeginInvoke
I have the following portion of code that didn't work, the code in UpdateCounts method is being ignored:
private void Start()
{
_testResults = new TestResults(ModelNameTextBox.Text);
_timer = new System.Threading.Timer(UpdateCounts, null, 0, 500);
}
private void UpdateCounts(object info)
{
Dispatcher.CurrentDispatcher.BeginInvoke(new Action(() =>
{
PassCountLabel.Text = _testResults.PassedCount.ToString();
RequestCountLabel.Text = _testResults.RequestedCount.ToString();
}));
}
But once removing Dispatcher.CurrentDispatcher, it works fine:
private void UpdateCounts(object info)
{
BeginInvoke(new Action(() =>
{
PassCountLabel.Text = _testResults.PassedCount.ToString();
RequestCountLabel.Text = _testResults.RequestedCount.ToString();
}));
}
The Dispatcher.CurrentDispatcher.BeginInvoke will work only if you call it from the UI thread,if not it calls the current thread.
You have to use Application.Current.Dispatcher to call the UI thread .
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