RadComboBox BindingOperations.GetBindingExpression

[Robbe Morris]

How does one grab the binding in order to force an update on a RadComboBox control?

MyRadComboBox.ItemsSource = MyObservableCollectionOfACustomClass;
MyRadComboBox.DisplayMemberPath = "Description";

Then, I try to grab the binding in a different control's event.

var binding = BindingOperations.GetBindingExpression(MyRadComboBox, RadComboBox.ItemsSourceProperty);

 

if (binding == null) return;  // This is always null

 

binding.UpdateTarget();

[Georgi]

Hello Robbe,

It seems like there is no binding set.

MyRadComboBox.ItemsSource = MyObservableCollectionOfACustomClass;

The code above just give a source to the ItemsSource, but it doesn't set any binding.

var binding = BindingOperations.GetBindingExpression(MyRadComboBox, RadComboBox.ItemsSourceProperty);

So when the the above is used it is normal that the binding is null.
I have attached a simple project where you can see how when binding is set the binding variable is not null.

Kind regards,
Georgi
the Telerik team