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Property legend Type legend Description
Context dp object expr base context
ContextPath string path a path to use for the value of Context
Value dp object the value the observe (must have a binding)
Body dp cp StatementCollection the body of the handler


The ChangedHandler uses the data binding system to receive dependency property changed notifications for the data binding on the Value property and when those events are raised it executes its Body. If Value is not null it also executes its Body upon initial registration. When the body executes the builtin variables @Sender will be set to the sender and the @EventArgs will be set to a structure with three properties: Property (referring to the dependency property Value above), OldValue and NewValue.


Last edited Mar 31, 2011 at 3:44 AM by jrs, version 4


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