C# - User Control Losing State

Jun 27, 2010

I have a user control that I am explicitly calling from an aspx page. In page_load of the aspx page I have the following: myControl = (DynamicTable)Page.LoadControl("../inc/DynamicTable.ascx");

Then in my code where I want it to execute the control, I have this: pnlESDDEnrolled.Controls.Add(myControl);

where pnlESDDEnrolled is the panel I am loading it into for display. So, I execute the aspx page, it links off to the user control, populates the control, returns back to the aspx page and the page displays with the user control in the middle of it. All is well.

The problem comes in when updates are made on the user control. Keep in mind, that other data is updated on the page as well, and the update button resides on the page, not the control. Anyway, when the update button is pushed, the button_click event is fired on the page, but the updates that I made on the user control are lost. Since the page loaded the user control and then the usercontrol executed the page unload method, the page has no knowledge of the user control anymore. Thus, when the update button on the page is pushed, I guess I am not really sure what happens with the updated data on the user control. All I know is that it is lost.

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