In addition you may take a look at NewObject (function and method in Help, if you're using VFP6.0)

>This.MyColumn.Addobject('txtIncr','aabase01')
>
>
>Your class lib should be in the VFP search path. If you hard code a path, you will have problems when you distribute the app, unless the customer has the identical directory you do during development.
>
>>I am trying to use the AddObject command to add a control to a grid programatically, but it keeps saying it cant find the class.
>>
>>My Class (txtIncr) is in a Class Lbrary called AABASE01 in C:\KER and my app is in C:\DIS. I am able to use the classes from AABASE01 elsewhere in the application fine!!, for example dropping them onto forms etc.
>>
>>I'm tring the following:
>>This.MyColumn.Addobject('txtIncr','c:\ker\aabase01\txtIncr)')
>>This.MyColumn.Addobject('txtIncr','c:\ker\aabase01.txtIncr)')
>>
>>It sounds like I have this syntax wrong.
>>
>>Any help appreciated.
>>Regards,
>>Gerard