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landonbass (1) [Avatar] Offline
When following your example in 10.1.1, I get an ArgumentNullException when I add the web part to the page if the rss url is not defaulted.
The CreateChildControls override checks for a null or empty rss url, but the OnPreRender does not. I can add the check to the beginning of the override, but is there a better approach? Is it better to encapulate the update in a separate method and tie the button (or a timer) to that and not even override OnPreRender?