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Printing Tip – Handling User Initiated Dialogs Exceptions

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0 comments   /   posted by Silverlight Show on Jun 15, 2010
Tags:   tips , printing , silverlight-4 , john-papa
Take a look at this tip where John Papa demonstrates how to handle user initiated dialogs exceptions.

I see this question every so often so it makes sense to share it through a quick post. When using the print API in Silverlight 4 you can run into the dreaded exception:

“System.Security.SecurityException: Dialogs must be user-initiated”

Then you examine your code and confirm that your code where you invoke the PrintDocument’s Print method are indeed being handled by a user-initiated event. If you are not invoking Print in a user-initiated event then your know your solution :)


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