WebUserControl's bindable properties not seen in GridView's Bindable Properties list

[Craig Buchanan]

I created a WebUserControl with a SelectedValue property that can be data
bound using the Bind() method. Moreover, I've marked the SelectedValue
property with the Bindable and Browsable attributes. I can manually set the
binding in the ASPX page using SelectValue='<%# Bind("ColumnName") #>'
syntax. For some reason, however, the SelectedValue property isn't listed
in the control's 'Bindable properties' list when I edit a templated column.

What am I missing?

Thanks,

Craig Buchanan