Current filter:
                                You should refresh the page.

                                This example illustrates how to filter LookUpEdit items based on the value of another column.
                                To provide this functionality, we show cell editors using the CellTemplate property. Unlike EditSettings, this property allows you to display independent editors with different ItemsSource collections.
                                The ItemsSource collection is filtered in the ShownEditor event handler and is set to its original value in the HiddenEditor event handler.
                                The last step - setting ItemsSource to the original value - is required since GridControl creates visual elements only for visible rows and will re-use cell editors on scrolling rows. Since editors with the DisplayMember/ValueMember property set show only values from the ItemsSource collection, values in other cells may disappear if you skip this step.