如何模仿用于WPF控件的默认模板？

Question

I've got an area (control of type Border) on my window with content that relates to the selected object in a nearby GridView within a ListView.

I want the style of that area to match the style (borders and gradients) of the selected ListViewItem. The look will depend on the user's operating system and its theme.

How do I give my box the same look as a list item?

Mock-up:

Answer 1

I don't think I fully understand but my guess is that you are talking about the default ListBox selection brush?

That resource is called

{x:Static SystemColors.HighlightBrushKey}

That is the Blue background you show in your mock up. If you want to also set the foreground color that is:

{x:Static SystemColors.HighlightTextBrushKey}

Those two resources will give the system setting for the given user / OS / theme for selection. Is that what you are after?