I am making up a WPF application to handle PO's
you select the PO (Combobox)
Then the Vender is selected for the PO in another combobox. Then the Contact from the vender is Selected from a 3rd combobox.
The problem is when you select an PO the VenderComboBox.SelectedItem Binds to the PO.Vender. Then the VenderContactComboBox.ItemsSource Binds the data of the current PO.Vender.Contacts.
And Finnaly the VenderContactCombox binds is selectedItem to the PO.VenderContact property.

The problem is when I change the PO this whole thing is bound to, the VenderContactCombobox binds its ItemsSource to the new Vender.Contacts clearing the Selected VenderContact of the last PO making the value null.

Does anyone know how to Bind a Dynamic ItemsSource of a combobox without effecting the SelectedItem while the ItemsSource is Changing?
Or how to easily suspend bindings then resume?
(I did get this working by using a windows forms approach and not binding in XAML ut thought this would be good to know (if possible) for future development)

Set IsSynchronizedWithCurrentItem to false on the ComboBoxes. This happens when you bind to the same item source that has a Current object.

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Bigsby, Lisboa, Portugal - O que for, quando for, é que será o que é... http://bigsby.eu

Hello MiddleTommy,

Does the suggestion from Bigsby work for you?

Good luck

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