How to Bind ComboBox Selected Item property in code behind of UserControl in a Windows 8.1 store app

Question

The below XAML binding works fine, but I can't get the binding to work when creating it in the code behind of the user control rather than in XMAL like below.

SelectedItem="{Binding ElementName=LabelledComboBoxControl, Path=SelectedItem, Mode=OneWay}"

Any help would be much appreciated.

Answer 1

Well, the equivalent binding in code behind would be something like this:

element.SetBinding(Selector.SelectedItemProperty, new Binding() {
    Path = new PropertyPath("SelectedItem"),
    Mode = BindingMode.OneWay,
    Source = this.LabelledComboBoxControl;
});

Here, element is the UI element whose SelectedItem property is binded in the code that you shared. I assume you have this.LabelledComboBoxControl which is the element that you're binding to. Also, you may change Selector.SelectedItemProperty to ActualElementType.SelectedItemProperty but I guess whatever you are using is just extending Selector, so it would be the same.