Sounds like you must change the value of yourcolumn.sparse.

>This code allows us to place and bind a date and time picker in the third column of a datagrid. Problem is , the date and time picker will not display bound data until the grid cell is activated. We need to know what property of the datetimepicker is not allowing the data to display in the datagrid cell. Thanks in advance.
>
>================================================
>
>* this class definition allows the addobject method to morph the COM object.
>Define Class dtPicker As OleControl
> Left = 50 && Command button column
> Top = 100 && Command button row
> Height = 22 && Command button height
> Visible = .F.
> format = 3
> CustomFormat = "mm-dd-yyyy"
>
> Procedure CloseUp()
> mdtObj = Thisform.grdDetail.Column3.dtpPicker.object
> Replace dtlRecon1.MnthYr With mdtObj.Value
> EndProc
>ENDDEFINE
>
>* This code snippet defines the objects and bindings for the grid cells.
>With Thisform.grdDetail
> .RecordSource = "dtlRecon1"
> .RowHeight = 22
> For Each oCol In .Columns
> intCol = Val(Right(oCol.Name,1))
> oCol.header1.Caption = Iif(intCol = 1, "Service", Iif(intCol = 2, "Variance", Iif(intCol = 3, "Month Year", ;
> IIF(intCol = 4, "Active","Description"))))
> oCol.Width = Iif(Inlist(intCol, 1, 4),75, Iif(InList(intCol,2, 3), 100, 256))
> Do Case
> Case intCol = 4
> oCol.AddObject("cmbActive", "COMBOBOX")
> oCol.CurrentControl = "cmbActive"
> oCol.ControlSource = "dtlRecon1.ActiveVar"
> oCol.cmbActive.RowSource = "ThisForm.cntRecon"
> oCol.cmbActive.RowSourceType = 10
> Case intCol = 1
> oCol.AddObject("cmbService", "COMBOBOX")
> oCol.CurrentControl = "cmbService"
> oCol.ControlSource = "dtlRecon1.Service"
> oCol.cmbService.RowSource = "ServiceTypes.Service"
> oCol.cmbService.RowSourceType = 6
> Case intCol = 3
> oCol.AddObject('dtpPicker', 'dtPicker', 'MSComCtl2.DTPicker.2')
> oCol.CurrentControl = "Text1"
> Store .T. to oCol.dtpPicker.Visible, oCol.dtpPicker.Enabled
> oCol.dtpPicker.ControlSource = "dtlRecon1.MnthYr"
> Store .F. to oCol.dtpPicker.Visible, oCol.dtpPicker.Enabled
> Case intCol = 2
> oCol.text1.Format = "@RK"
> oCol.text1.InputMask = "$$$,$$$,999,999.99"
> Endcase
> oCol.Visible = .T.
> Endfor
> .Refresh
>Endwith