Drop down list box not working for master page

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C#

ASP.NET

Ajax

C#4.0

Hi All,
I am trying to implement a drop down checked list box from following link reference.
http://dropdowncheckboxes.codeplex.com/[^]

I am having a master page on my aspx page and because of this the control is not getting initialized with values.

Is there any way we can make this work..

Please suggest.

Thanks and Regards,
Avinash