Mar 06, 2012 02:06 PM|superguppie|LINK
The solution is combining the code from the original post with what Qin Dian Tang posted. Do you really need someone else to do that for you?
Once you have that done, putting in a HiddenField, as I suggested is kind of trivial. So is changing the Parameter to a ControlParameter and making it refer to the HiddenField.