Use Form & Query To Search For Text & Number

Hello,

I have a form with a listbox on, the listbox uses a query to populate it, which returns a list of client names. The idea is, when I enter the clients name in a text box, the list is narrowed, through use of the query.

This works fine, and always has - very pleased with it, the problem comes when I decide I want to be able to search on the account number as well - which it always throws errors about.

I am using the following query (posting the sql, hope that is OK)

SELECT tblSafeKeep_Clients.SafeKeepClientID, tblSafeKeep_Clients.Title, tblSafeKeep_Clients.Initials, tblSafeKeep_Clients.Surname, Format(tblSafeKeep_Clients.DesignationNumber,"000000") AS Expr1
FROM tblSafeKeep_Clients
WHERE (((tblSafeKeep_Clients.Surname) Like "*" & [Forms]![frmSafeKeep_SelectClient]![txtSearchText] & "*")) OR (((tblSafeKeep_Clients.DesignationNumber)=[Forms]![frmSafeKeep_SelectClient]![txtSearchText]));


The problem is because I am only using ONE text box, but the surname is (obviously) text, and the account number is (obviously!) a number. SO - it throws a wobbler about it being too complex to evaluate when I try to search for a surname, trying to search for an account number works just fine.

Any ideas how to get around this?