IXRPropertyBag::GetValue (Compact 2013)
This method retrieves the value of a property of a data source object.
You must provide a custom implementation of this method when you create a custom C++ object to represent a data source for data binding. This method lets the XAML for Windows Embedded data binding engine retrieve updated values of data-source properties, which is required for one-way data binding.
The XAML for Windows Embedded data binding engine calls this method to retrieve the current value of the specified property.