Detect GraphInteractionPalette Click

[jsacks]

Hello,

I'm wondering if there is a way to detect when a GraphInteractionPalette button is clicked. I tried attaching a MouseDown/MouseUp event handler to the GraphInteractionPalette but that did not fire, I'm guessing because I would need to add the event handler to the actual button inside the palette.

Ideally I could detect which button on the palette was clicked, e.g. ZoomToFit.

Thanks in advance.

[phansen]

Buttons handle the MouseDown and MouseUp events itself, which you can see by attaching the events to a stand-alone button outside of any other control. From these events, it raises the Click routed event, which you can listen to on the interaction palette:

    <ni:GraphInteractionPalette Button.Click="OnButtonClicked" />

The content of the clicked button will be the associated graph interaction (or a string for the "zoom to fit" option):

    private void OnButtonClicked( object sender, RoutedEventArgs e ) {
        var button = e.OriginalSource as ButtonBase;
        var interaction = button != null ? button.Content as GraphInteraction : null;
        ...
    }

[jsacks]

Thanks, that's what I needed.

[phansen]

Just wanted to let you know that Measurement Studio 2019 added the GraphInteractionPalette.InteractionSelected event to support custom handling of interaction buttons.