Binding to Entity Object in WPF (C#)

Question

I have a TextBox bound to the Entity Framework object User. Works fine. But now, when I change the User object to the new User.CreateUser(0, ...) or null, TextBox doesn't change.

Why?

Best regards, James

I think you need to give some more info. What is meant by "changing User object to <...>'? You can't really change an object, you can assign the reference, call method, etc. What does CreateUser do? What do you expect to happen? — Dan Abramov
– Dan Abramov, Commented May 24, 2011 at 23:02

blindmeis · Accepted Answer · 2011-05-25 06:48:50Z

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pls post your binding and your datacontext, otherwise its hard to say whats wrong. i could just assume that INotifyPropertyChanged is not implemented.

answered May 25, 2011 at 6:48

blindmeis

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brunnerh · Accepted Answer · 2011-05-24 23:21:23Z

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You have to make sure that the binding hooks in at right level, not all changes are observed by the binding engine, e.g. if you only specify the Source that is identical to assigning the object referenced by the source, the binding will look for the PropertyChanged event on the source to update itself if you bind to a property using the Path, however it will never know if the source is swapped out.

If you bind to the User using the path this is not your issue, just what exactly is wrong is not inferable (for me, that is) from your question alone, you should probably post some code.

answered May 24, 2011 at 23:21

brunnerh

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