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How to disable Cascading Dropdown with selected value?

Posted By:      Posted Date: September 10, 2010    Points: 0   Category :ASP.Net
Hi I have a RadioButtonList and two cascading dropdown linked to corrspoding dropdown control. Based on radiobutton's selection, the cascading will be prepopulated with some values and one value is selected in both dropdown. I want to disable the cascading dropdown/dropdown after values are filled and selected on selection of radiobutton selected in RadioButtonList. I tried to disable it, but in that case dropdown is getting empty. Please advise, how to do this. Thanks in advance.  

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