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Add an empty item to the dropdown list of the WinForms Lookup Editor.

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How to create a data source wrapper that adds an empty item to the lookup list

This example demonstrates how to display an empty (blank) item in the dropdown list of the LookUpEdt control. This approach is also applicable to GridLookUpEdit / RepositoryItemGridLookUpEdit.

See Also:
How to clear the currently selected value in the LookUp editor