one UltraCombo has two columns,and the data is loaded from a datatable, now I do not know how to set the Validate function,when the data input is not contained in the datatable, then set the value of UltraCombo is null and the text is empty? How to set the function and howto set the Validate function?
many thanks
I think you are looking for the LimitToList property.
Thank you Mike Saltzman, it's OK .