Hi,

You cannot programmatically add code to a class at run-time.

You might be able to get away with creating a VCX and class programmatically, compile it programmaticcally, SET CLASSLIB TO it, and then add it to your grid. This would only work if you run Microsoft Visual Foxpro (meaning each customer would have to have VFP installed on his/her machine) and then run the app from within VFP.

This would not work in a compiled EXE.

It also gets around the whole reason for creating classes in the first place: classes give you a place to put code that you want to reuse.

Design Patterns may be of use to you. You could use what is called a bridge pattern. Create a checkbox class that in it's InteractiveChange has the following code:

RETURN thisform.oCheckBoxBehavior.InteractiveChange(this)

Add the checkbox to the grid

In the init of the form, instantiate a class that has the behavior you want in the InteractiveChange and attach it to thisform.oCheckboxBehavior.

Now you can change the checkbox behavior by attaching a different object to thisform.oCheckboxBehavior

>
>In the init of a grid I have the following code:
>
>

>this.column1.AddObject("chk1","checkbox")
>this.column1.currentcontrol = "chk1"
>this.column1.sparse = .f.
>this.column1.chk1.visible = .t.
>this.column1.chk1.caption = ""
>

>
>I now want to add code to the InteractiveChange method of this checkbox. How do I go about doing this?
>
>Thanks,
>Paul