I want to create a flat style template for WPF combobox which looks like a combobox in Visual Studio 2010. Also I want to use Visual Studio brushes for this template.
Here's a link to the standard combobox styles and templates: http://msdn.microsoft.com/en-us/library/ms752094.aspx.
You should be able to add a style, similar to the following that makes the ComboBox flat (it may need some tweaking):