Web Forms :: 2 Instances Of A User Control On The Same Page Causing Page_Loads To Fire On Both?

Jan 12, 2011

I've created a User Control (.ascx), which has a dropdown. When an item is selected, it uses some model classes to pull back a set of data which it then dynamically displays as a list of checkboxes in a panel control.

When I add one to the page, it works very well indeed.

However, when I add another I get this behaviour:

1. Select an item from the first dropdown, the checkboxes appear underneath ok.

2. Select an item from the second dropdown, the new lot of checkboxes appear ok, but the first lot disappear.

It's rather frustrating, they both have different IDs on the page, so they shouldn't interfere with each other should they? There is some Javascript that I've added but I use the Panel.ClientControlID to separate these out (I've already thought of that one).

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