Sharing same ITemplate across any Templated control

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ASP.NET

templates

Binding

Hi,
I am trying to use a common Itemplate class for dynamic generation of Templated controls for both Gridview and Detailsview.I am using an approach similar to described
here[^]. However, during databinding event, I have to explicitly specify the type of control being binded. For e.g

DropDownList dropdown = (DropDownList)sender;
            GridViewRow container = (GridViewRow)dropdown.NamingContainer; <-- Problem lies here
            object dataValue = DataBinder.Eval(container.DataItem, _columnName);

Is there any option where i can use an interface to access the NamingContainer and pass it to the DataBinder.Eval function to extract the underlying data item value ?