Binding properties through DataTemplates and ContentControl

Question

I liked this answer, and it almost fit me.

But, how can I achieve this if my DataTemplate is in a external ResourceDictionary

Answer 1

The DataContext in the UserControl is your model object, so you can directly bind to its properties like this:

Text="{Binding SomeProperty}"

(If only a path is specified the binding is relative to the DataContext, note that in the answer you linked the intention was to have a TwoWay binding on the DataContext itself which was a primitive string, this cannot be done using a simple binding like {Binding .}, a property path targeting an actual property needs to be specified)

Answer 2

Since the DataContext behind OperationView will be an object of type Operation, then you simply bind to whatever property on Operation you want

<!-- DataContext will be model:Operation per your DataTemplate -->
<UserControl x:Class="TryERP2.Cadastro.View.OperationView"
             ... some hidden NS ... >
    <StackPanel>
        <Label Content="Id" />
        <TextBox Text="{Binding Id}" />
        <Label Content="Description" />
        <TextBox Text="{Binding Description}" />
    </StackPanel>
</UserControl>