In order to use your other skin on the page, you need to explicitly register the CSS files on the page with <link> tags and set the corresponding Skin property to the desired controls. Note that settings in an ASP.NET theme cannot be overridden on a web page. For example if you have set Skin="Vista" for all RadGrids in the ASP.NET theme, you cannot set a different Skin property in the web page. This problem can be worked around if you use SkinIDs.
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