Hi John.

>> I have a form that has both text box's and a grid, I'd like to display
a filed in the grid as a summ in a text box. I'll be pointing to a record and linking to another displaed in a grid. I'd like to summ one
of the field in the grid to a text box on the form. <<

You mean you want to display the sum of the number in a single grid column in a text box on the form? If so, You could create a Custom form Method called DisplaySum and call it from the Valid method of the textbox in the grid along with the column's controlsource as a parameter:

Call like this:

Thisform.DisplaySum( This.ControlSource )

In the DisplaySum method:

LPARAMETERS tcControlSource
LOCAL lnCurRec
*** Save the current record number because the SUM command moves the record pointer
lnCurRec = RECNO( JUSTSTEM( tcControlSource ) )
SUM EVAL( This.ControlSource )FOR SomeCondition TO lnSum
This.Parent.Parent.Parent.txtColumnSum.Value = lnSum
GO lnCurRec IN ( JUSTSTEM( tcControlSource ) )

Please note that I have not tested this and it is pretty much off the top of my head. But hopefully, it is enough to get you started.

Marcia