ACC97: How to Use Automation to Create a Microsoft Excel Chart

• Microsoft Access 97

SUMMARY

This article shows you how to use automation to create and format a chart in Microsoft Excel 97.

MORE INFORMATION

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1. Start Microsoft Access and open the sample database Northwind.mdb.



2. Create the following query based on the Orders table and the Order Details Extended query:

   
      Query: qrySalesByCountry
      ------------------------------------------------------------------
         Type: Select Query
         Join: [Orders].[OrderID] <-> [Order Details Extended].[OrderID]
   
         Field: ShipCountry
            Table: Orders
            Total: Group By
         Field: ExtendedPrice
            Query: Order Details Extended
            Total: Sum 

   Save the query as qrySalesByCountry and close it.



3. Create a new module and type the following line in the Declarations section if it isn't already there:




Option Explicit 

4. On the Tools menu, click References. In the References dialog box, ensure that the Microsoft Excel 8.0 Object Library check box is selected, and then click OK.



5. Type or paste the following procedure into the module:




Function CreateChart(strSourceName As String, _
      strFileName As String)

   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

   On Error GoTo Err_CreateChart

   ' Create an Excel workbook file based on the
   ' object specified in the second argument.
   DoCmd.TransferSpreadsheet acExport, acSpreadsheetTypeExcel97, _
         strSourceName, strFileName, False
   ' Create a Microsoft Excel object.
   Set xlApp = CreateObject("Excel.Application")
   ' Open the spreadsheet to which you exported the data.
   Set xlWrkbk = xlApp.Workbooks.Open(strFileName)
   ' Determine the size of the range and store it.
   Set xlSourceRange = _
         xlWrkbk.Worksheets(1).Range("a1").CurrentRegion
   ' Create a new chart.
   Set xlChartObj = xlApp.Charts.Add
   ' Format the chart.
   With xlChartObj

      ' Specify chart type as 3D.
      .ChartType = xl3DColumn
      ' 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 = _
            "Total Sales by Country"
         .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.
      .Axes(xlSeries).Delete
      ' Delete the legend.
      .HasLegend = False
      ' Set each datapoint to show the dollar amount
      ' and format the datapoint to be currency
      ' with no decimals.
      With .SeriesCollection(1)
         .ApplyDataLabels Type:=xlDataLabelsShowValue
         .DataLabels.NumberFormat = "$#,##0"
      End With

   End With

   ' Position the points further from the tops
   ' of the columns.
   For Each xlColPoint In _
        xlChartObj.SeriesCollection(1).Points
      xlColPoint.DataLabel.Top = _
            xlColPoint.DataLabel.Top - 11
   Next xlColPoint
   ' Save and close the workbook
   ' and quit Microsoft Excel.
   With xlWrkbk
      .Save
      .Close
   End With

   xlApp.Quit

Exit_CreateChart:
   Set xlSourceRange = Nothing
   Set xlColPoint = Nothing
   Set xlChartObj = Nothing
   Set xlWrkbk = Nothing
   Set xlApp = Nothing
Exit Function

Err_CreateChart:

   MsgBox CStr(Err) & " " & Err.Description
   Resume Exit_CreateChart

End Function 

6. On the Debug menu, click Compile And Save All Modules.



7. Press CTRL+G to open the Debug window.



8. To run this procedure, type the following line in the Debug window, and then press ENTER:




?CreateChart("qrySalesByCountry","c:\Sales.xls") 

9. Open the file c:\Sales.xls in Microsoft Excel 97. Click the chart sheet Chart1 to view the Sales By Country chart.

REFERENCES

For more information about getting help with Visual Basic for Applications, please see the following article in the Microsoft Knowledge Base:

Q163435 VBA: Programming Resources for Visual Basic for Applications

Additional query words: Graph Plot Data Series

Keywords : kbdta AccCon IntpOlea
Version : WINDOWS:97
Platform : WINDOWS
Issue type : kbhowto