I am using some code in an aspx page using
<asp:DropDownList> class. I want to build a new
DropDownList class based on the DropDownList class. While
specifying the namespace is easy enough to specify in the
new class and compile, I get an error when I try to use
the new component in the aspx page:

Could not load type
System.Web.UI.WebControls.Bill2DropDownList from assembly
System.Web, Version=1.0.2411.0, Culture=neutral,
PublicKeyToken=b03f5f7f11d50a3a.

How do I bridge this gap? Do I need to include the
assembly info in my new class?

thx!