I have an asp.net form with a selection list on it that contains many items. I want a modal popup to provide search criteria to narrow the selection, and once the selection is made, to set the ddlb on the parent form (and close the modal popup). I am having trouble getting this to work. When I choose the item in my modal popup, I call a method on the parent form to select the ddlb. It doesn't work (the selection is made, but it doesn't persist). I think I need to post back the form. When I try and use the timer to generate a postback, the timer fires continuously, even after I disable it.
What would the proper way to code this be?