I have an AJAX enabled ASP.Net 3.5 app in which I have:
A Master PageA Web Content PageA User ControlMore precisely, there's a Placeholder control in the Web Content Page into which one of many User Controls are loaded (one at a time or none at all).
The basic User Control I'm working with has a bunch of Labels and one DropDown ListBox. The latter control is a date selector - ie. June 2010, May 2010, April 2010, etc. When the user changes the date, since AutoPostBack = true for the control, a PostBack occurs. But when this happens, the User Control disappears!
All I want is for a partial postback to occur so that I can use the new date to repopulate the various Label controls. I even put the Placerholder control in its own UpdatePanel but this didn't resolve anything - the User Control still disappeared.
How do I resolve this?
Robert
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