Generally, you can get the selected item from the value of the underlying property of your business object. As it is in the case illustrated in our online documentation, you can find the selected item (Country) from the CountryID property of Person object.
Still, you can handle SelectionChanged event of the editing element (RadComboBox) of GridViewComboBoxColumn as follows:
this.AddHandler(RadComboBox.SelectionChangedEvent, new Telerik.Windows.Controls.SelectionChangedEventHandler(OnSelectionChanged));
private void OnSelectionChanged(object sender, Telerik.Windows.Controls.SelectionChangedEventArgs e)
if (e.RemovedItems.Count > 0)
//Here you can place your logic for handling the case when an item is selected from the combo box.
the Telerik team
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