AutomationProperties.LiveSetting not working in WPF in .NET Framework 4.7.1

Question

I have a TextBlock and I want to track that control from Screen reader and whenever a new value is set to the control in code, the screen reader should readout the new text. Thi

Answer 1

Use the CreatePeerForElement method to create a UIElementAutomationPeer for the TextBlock:

private void Save_Click(object sender, RoutedEventArgs e)
{
    MyTextBlock.Text = "My changed text";
    var peer = UIElementAutomationPeer.FromElement(MyTextBlock);
    if (peer == null)
        peer = UIElementAutomationPeer.CreatePeerForElement(MyTextBlock);
    peer.RaiseAutomationEvent(AutomationEvents.LiveRegionChanged);
}