RadCollapsiblePanel Button Element customization

[Jeff]

I'd love to use the RadCollapsiblePanel to provide drop down buttons in my application on certain menus, but my buttons currently are square. and I can't seem to modify the button shape in the panel without using the ControlSpy. Even then it seems odd that there is no "square" button shape to select and I have to make a custom shape for something so common.

My main problem at this point, however, is that any time I set the button element AutoSize to false, the button vanishes at runtime. I attached an image of how it looks at design time. I am able to use a larger image and resize the button, change the background, border, etc. I can't figure out how to make it square and at runtime, the button is gone and nothing in that area responds to a click.

[Jeff]

I forgot to mention that in the image, the square button is a normal button and the round button is the RadCollapsiblePanel button.

[George]

Hello Jeff,

Thank you for contacting us.

I was able to add a RadButtonElement to the header of RadCollapsiblePanel and to set its Shape. In your case the image may be the one which is causing troubles. Since the RadCollapsiblePanel actually uses a LightVisualElement for its button, instead of RadButtonElement. You can try to use CollapsiblePanelButtonElement, which should result in the correct behavior.

I am also attaching a sample project for your reference.

Let me know if you have any other questions.

Regards,
George
Telerik