Disable mouse click, how to?

Question

Hi guys, I would disable mouse click on a specific UI element, How could I do this?

I'll try to explain what's wrong in the default beahviour.

I've created a xaml (named CustomControl) which contain a border. The border contains a button.

Then the control is inserted into another xaml, called MainContainer.

In the MainContainer code behind I've registered an handler to listen mouse click event from the CustomControl. In this case I use RoutedEvent flow. [I use RoutedEvent mechanism instead of a custom event]

 
this.AddHandler(UIElement.MouseLeftButtonDown, new MouseEventHandler(myfunction), true);
 

The code works well even if myfunction is called both when I click the button and when I click the border. So, is it possible to disable to listen for click events for the border control?

 Thanks  a lot. Regards.

Answer 1

 register your eventhandler for button instead of the entire control.

root = (FrameworkElement)VisualTreeHelper.GetChild(this, 0);

  button = root.FindName("YourButtonName") as FrameworkElement;

 

Or best would be to add eventhandler within your custom control where you can add the handler like following

btnYourButtonControl.

AddHandler(UIElement.MouseLeftButtonDown, new MouseEventHandler(myfunction), true);

Answer 2

Or best would be to add eventhandler within your custom control where you can add the handler like following

btnYourButtonControl.

AddHandler(UIElement.MouseLeftButtonDown, new MouseEventHandler(myfunction), true);

 

Could yoy explian the second solution? I would the event bubbles to the MainContainer? Thanks a lot.

Answer 3

In your custom control define an event of MouseEventHandler and raise it to be caught in any parent container (mainpage).

 

public event MouseEventHandler CustomEventHandlerInMainForm;

In your event handler code write following code

if (CustomEventHandlerInMainForm != null)
      CustomEventHandlerInMainForm(sender, e);

 

In main page where you use control register this event handler...

 

CustomControl customControl = new CustomControl();

customControl.CustomEventHandlerInMainForm += new System.Windows.Input.MouseEventHandler(customControl_CustomEventHandlerInMainForm);