Hi,

in todo app i was getting following error after trying to delete a depency, 
which has
a reference to a TodoItem.

Unable to save changes. Does similar data already exist, or has referenced data 
been deleted?
integrity constraint violation: foreign key no action; ToDoItemDependencies_FK2 
table: ToDoItemDependencies

How can i catch this, and transform it to a message on my own, and display it
for example on the top of the page? Without getting an empty Result page.

Best Regards
Andreas

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