I am using the MVVM pattern and I want to get the value of the property in the OnPropertyChanged event

Question

I want to get the value of the property in the OnPropertyChanged event. I would rather not use reflection.

Answer 1

The OnPropertyChanged() method would need to use reflection to get the value. also the passed name is just specified in an attribute, it does not specify an actual underlying property (or object if nested).

Answer 2

Hello,

It is unfeasible to get the value in the PropertyChanged event. The reason is as follows.

In the OnPropertyChanged event, it serves to notify other components that the value of this property has changed. Therefore, in this event you will only find the property PropertyName and not the value. when using this method, it is common to manually assign the value in the setter method and then call this method. You could refer to the following documentation.

• How to: Implement Property Change Notification
• Data binding and MVVM

Best Regards,

Alec Liu.

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