Adding DataBinding feature to composite properties of my ASP.NET Server Control.

I have developed an ASP.NET Server Control (C#.NET 2.0). In this control, I made some composite properties like , [login to view URL], [login to view URL] etc. It also has some simple properties like Text, ImageURL etc. Now, once I added [Bindable(true)] attribute to the simple properties, it is shown up in the DataBindable property list (For example, the {Expressions} in Visual Studio Property Editor shows all data bindable properties of this control. Now, I also added [Bindable(true)] to the composite properties but anyway I can not bring them visible in the DataBindable list. My purpose is, I want to bind the Subproperty [login to view URL] with a dataSet string type field but I am stucked here. So, My requirement is, I need to get the necessary fix in my Attached ZIP file contained source code so that my subproperties are also become available in the DataBindable list. Plase please please, download the attached Zip file first and try to understand the problem and then you bid. I really need the solution urgent.