Object Microsoft Excel Chart

I put object Microsoft Excel Chart in my form and the chart was build with sheet1 situate in the object Chart1 but I will like to change data on sheet1 to make a new chart but I not able.

I try with Worksheet("Sheet1").cells(2, 3).value = new value but I receive all the time this error "Method or data member not found" for Worksheets.

My problem is "am not able to select the sheet in the object(Chart1)"

I will like to take data in DBGrid and put them in Sheet1 to make new chart.

Help me !

Sorry for my english
Thanks
Redg

try this

Dim xlApp As Excel.Application
Dim xlWrkbk As Excel.Workbook
Dim xlChartObj As Excel.Chart
Dim xlSourceRange As Excel.Range
Dim xlColPoint As Excel.Point

Set xlApp = CreateObject("Excel.Application")
Set xlWrkbk = xlApp.Workbooks.Open("c:\1.xls")

Set xlSourceRange = xlWrkbk.Worksheets(1).Range("a:b").CurrentRegion

Set xlChartObj = xlApp.Charts.Add

With xlChartObj ' Specify chart type as 3D.
.ChartType = xlLine
' Set the range of the chart.

.SetSourceData Source:=xlSourceRange, PlotBy:=xlColumns

' Specify that the chart is located on a new sheet.
.Location Where:=xlLocationAsNewSheet
' Create and set the title; set title font.
.HasTitle = True
With .ChartTitle
.Characters.Text = "My Title"
.Font.Size = 18
End With
' Rotate the x-axis labels to a 45-degree angle.

.Axes(xlCategory).TickLabels.Orientation = 45

' Delete the label at the far right of the x-axis.

.HasLegend = False

End With
With xlWrkbk
.Save

.Close
End With

xlApp.Quit

Set xlApp = Nothing
Set xlWrkbk = Nothing
Set xlChartObj = Nothing

End Sub