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I don’t know the exact mechanism that enables this behavior, but we’re going to take advantage of it to make our binding work…
So far in this tutorial, we have mostly created bindings between UI elements and existing classes, but in real life applications, you will obviously be binding to your own data objects.
see order to bind the property, it needs to be a Dependency Property, but not just that!
You also need a control in XAML binding to your property.
You have to manually bind your dependency property to the property on your view model.
It should have been obvious and I’m not sure why I hit on so many wrong answers but here is my solution: Add the dependency property to My View that will bind to the view model This manually sets the binding to a property “View Mode” that is in my view model.
It looks like this: As you can see, implementing INotify Property Changed is pretty easy, but it does create a bit of extra code on your classes, and adds a bit of extra logic to your properties.
There are a lot of complex operations that the view model controls in terms of handling states and progress bars.
It made sense, therefore, when I needed almost the exact same operations but with four different classes that inherit from the same model to use the same view.
And by the way, you are confusing source and target values in your question, here the functionality you want is to update the Target Value which is the property where your Text Box.
property in WPF is extremely handy, because it is automatically inherited by all children of the element where you assign it; therefore you don’t need to set it again on each element you want to bind.
and I had prepared a long, off-topic rant about MVVM because of a bit of trouble I’m having with it at the moment. Maybe I’ll make it an on-topic post at some point in the future.