For example, you may have a collection of Task objects.
However, if the Update Source Trigger value is Lost Focus, then that value only gets updated with the new value when the target property loses focus.
To put it in another way, when a List Box item is selected, the Content Control shows the details of the selected item.
Resources I have seen this post however, this is not working for a Template Column.
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This means that although an item might exist in the collection, this particular view is intended to show only a certain subset of the full collection.
This interface exposes an event that should be raised whenever the underlying collection changes.
A Validation Rule object checks whether the value of a property is valid.
When the path is not specified, the default is to bind to the entire object.
The Data Templating section provides information about data templating.
Note that if a validation error or other type of error occurs at any time during this process, the process is halted.