title: How to apply themes runtime?
body: <p>I want to build the application that contains themes with skins &amp; css files.</p>
  
  <p>That themes list should be seen to the user on web page. Whenever user select the theme in themes list that theme applied to the application throughout all pages.</p>
  
  <p>Please rely me if you have any about to steps how to apply dynamic themes to the web application in master content pages.</p>
  
  <p>I tried to apply themes on one single content page but the problem is I can not getting the value of dropdownlist selected item in the Page_Init event. It gives error object reference not set to an instance of object. how to catch the dropdownlist value in Page_Init method.</p>
  
  <p>Also if I want to set the theme in web.config then how I can change that on runtime.</p>
  
  <p>Please give reply..........</p>
  
  <p>Regards
  Girish</p>