What would be causing this?
I've got an UpdateProgress control in my page that listens for any Async requests, namely changing a tab in a WebTab and changing a WebDropDown item. The UpdateProgress .gif animates fine when I'm changing tabs, however, as soon as I change the drop down item in the WebDropDown, changing tab just gives me a 'frozen' gif animation.
The WebDropDown has AutoPostBackFlags-SelectionChanged set to Async, and no other properties. Scratching my head to figure out why it's doing this, but figure it might be a client side issue.
Any ideas?
Also, this is when running the page within a winforms application. Otherwise it works fine.
I've also noticed that the spinner is only disabled if after selecting an item from the dropdown, the cursor is flashing in the dropdown box (i.e. as if you were typing)
Alright I can confirm that the issue definitely appears to be whether or not a caret is in the dropdown box after selecting an item. If there is no flashing caret in the box, it appears to work fine, however, if there is after making a selection, even if I change the selection or click off so the caret stops flashing, I get the error with the loading image not animating. Is there any way to completely disable putting a caret cursor in the dropdown? I already have enablecustomvalueselection and enablecustomvalues set to false, but it still shows up.