Use LookupEdit and GridLookupEdit controls in combobox mode.
Implement cascading LookUpEdit controls using DevExpress MVVM framework
Create cascading lookups (filter items in the lookup's dropdown based on a value in another lookup).
Add an empty item to the dropdown list of the WinForms Lookup Editor.
Hide the Close button from the lookup dropdown.
Filter a standalone lookup based on a value in another lookup (Cascading Lookups).
Parse entered values and add new records to the lookup’s data source.
Display custom text if the lookup's value is not found in the dropdown list.
Filter a lookup column based on a value in another lookup column in the grid's Edit Form.
Display custom tooltips for lookup items.
Bind a lookup column in the Grid Control to Entity Framework objects.
Customize the GridLookUpEdit to create a data-bound image combobox.
Add a description, image, and links to the data-lookup topic page so that developers can more easily learn about it.
To associate your repository with the data-lookup topic, visit your repo's landing page and select "manage topics."