Uncatchable exceptions


  • Hello, I was developing Windows Universal App in past half year and I encountered few uncatchable exceptions during my work. I solved all problems, but I am still curious, why this strange behaviour occurs. These exceptions are placed in try-catch statement, but still they raise exception even in try braces and are not catched, break app, VS shows Exception options table. Invalid code is in try-catch. Catch was set to catch several different exception, including general Exception and nothing could really catch this error. I wanted to add screen with example, but it seems I haven't approved account.

    Another similar uncatchable Exceptions are raised when two MessageDialogues are shown at same time or with opening non-existing file. They all appear within await async methods, as far as I can see.

    I cannot find explanation all over the internet so I asked this question on StackOverflow, where, I believe, was missunderstood and noone given me answer. It is truth I am quite new to WinRT, but still noone could explain to me, what this does mean. If anyone could explain me this, it would be great.  


    Friday, March 27, 2015 10:53 AM