Check the fourth of 8 videos by Ken Cox about the development of CRUD application using Silverlight and Visual Basic.NET.
Episode 4, 'U is for Update' takes you through validating user input, handling button clicks, saving data changes back to the database, and canceling changes. The screencast shows how to use the PropertyChanged event with more examples of wedging your own code into generated partial classes..
Note: The previous episodes are prerequisites: Episode 1, Episode 2, Episode 3
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