>Nomi:when i use dsn, all CA are present in DS. but when i use connection handle:
>goge=SQLSTRINGCONNECT("Driver={MySQL ODBC 5.1 Driver};Server=localhost;charset=UTF8;Database=school;User=root; Password=;Option=3;")
>my problem is same:is string is true
>my

Looks OK from the quick glance. Did you try to verify at www.connectionstrings.com ?

To test CA in command window:

loCA = createobject('myCAClass')
loCA.CursorFill()