How to dynamically create a class out of the DataContext, in WPF?

Question

Is it possible to dynamically get the binding properties for a view into a class and manipulate it in run time. for example, if the DataContext is of type User that has 10 properties, but the bound properties are only 4, can I make a class that has these 4 properties only?

It is possible. What exactly is the goal you are trying to achieve here though? — MrZander, Sep 27 '17 at 21:14
I want to serialize the data appearing in the view, and I want to get it as short string as I can, so I want to exclude the unbound properties — mshwf, Sep 27 '17 at 21:16
sometimes the DataContext class has dozens of properties and collections, but what is shown in a specific view just few properties, so serializing this mini-class would save me a lot — mshwf, Sep 27 '17 at 21:18
Ok. I see what you mean now. I am not sure if that is possible in the way you want. — MrZander, Sep 27 '17 at 21:18
If you have it working - post your code, please. Would be very useful! — Maciek Świszczowski, Sep 27 '17 at 22:05

score 0 · Answer 1 · answered Sep 27 '17 at 22:02

Doable, but difficult.

You must parse the visual tree, and visit every control using VisualTreeHelper (see: https://stackoverflow.com/a/874426/275330).
For every control you can get a list of its dependency properties (see https://stackoverflow.com/a/26367132/275330)
Then for each separate dependency property you can check if its value is set locally (see: Knowing if a DependencyProperty has not been set in XAML). If so - you have the value you need.

I've never used 1+2+3 together, so I don't know what additional difficulties you may have.

How to dynamically create a class out of the DataContext, in WPF?

1 Answers1