Using subclasses to change control appearance

Getting Started
1

I’m trying to add visual properties (transparency, no borders) to controls like datepicker and combobox that they (apparently) do not have. Is that possible? I’m trying to use a subclass for this, but (for me) a subclass doesn’t have any new properties, just a selected subset of those already in existence. All I really want to do is use all the visual controls in a consistent way, at a consistent size. I don’t want borders or backgrounds to anything. Is there a way to achieve this? I know on the web side I can use css, but what about the desktop?

2

I don’t think you can add properties that the control doesn’t support. You add other properties to support the code you want to write when using the control.

2 Likes
3

You can subclass a control and add properties.
You can set the values of existig visual properties in the constructor : for example setting transparent or border = no
But you cannot for example make a slider control draw green as you do not get access to the control’s paint event

4

Thanks. That’s what I’m looking for.

5

Thanks for saving me some serious time trying to do something that can’t be done.