Hey all, There's an issue with validating Tabs that are not visible with Silverlight. Essentially the tab is not visible, thus not in the visual tree and so validation can't be done. It's documented if you search for it and there are a few hacks around (one is to switch to each tab, validate and move on.). I thought about this as an option but am not sure how to disabled the screen from flickering while it does this. Nasty hack, so don't like.
We currently iterate through each RadTab control recursively (nested TabControls) and add each control to a collection, then validate each one. If any are found we just change the colour of the tab. It seems to work for most cases, but I've been tracking down one page that doesn't work right. The problem with this one is there is a control on the page, which is where all the work is being done. When the page works (if you just navigated to it) then the page returns 2700+ controls to validate. If you click save again, while the tab is not visible, then you only get 100. Everything inside the control, including the control itself is no longer around. So it seems the control is behaving the same way that TabItems behave in that if its not visible then you can't validate it. I guess what I'm asking, has anyone hit this before and perhaps come up with a clever solution? (Clever solutions will be considered even if you haven't hit it before and are just plain clever.) Hell, I'll take dumb solutions at this point! thanks, Stephen
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