Hi Stu,
INotifyPropertyChanged interface works in binding scenarioes, which means
change notification would occur in a binding between a bound client and a
data source.
Let's take the DemoCustomer class provided in MSDN document
(
http://msdn2.microsoft.com/en-us/library/system.componentmodel.inotifyprope
rtychanged.aspx) for an example. Suppose we have a DemoCustomer instance
and a PropertyGrid control and set the PropertyGrid control's
SelectedObject property to the DemoCustomer instance.
When the values of the properties(CompanyName or PhoneNumber) in the
DemoCustomer instance change, property changed notification won't occur in
this case.
However, if we bind the SelectedObject property of the PropertyGrid control
to the DemoCustomer instance and then change the properties' values of the
DemoCustomer instance at run-time, property changed notification occurs and
the new values are displayed in the PropertyGrid control at once.
The following is a sample code to bind the SelectedObject property of the
PropertyGrid control to a DemoCustomer instance.
DemoCustomer obj = DemoCustomer.CreateNewCustomer();
this.propertyGrid1.DataBindings.Add("SelectedObject", obj, null)
Finally, when we set the PropertyGrid's SelectedObject property to a
business object and want to refresh the properties' values of the selected
object immediately in the PropertyGrid, we could subscribe and handle the
PropertyChanged event of the business object manually. In the event
handler, we call the PropertyGrid.Refresh method to refresh the
PropertyGrid control.
Hope this helps.
If you have anything unclear, please feel free to let me know.
Sincerely,
Linda Liu
Microsoft Online Community Support
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