How To Automate Excel to Create a New Workbook from Delphi

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Article ID: 231614 - View products that this article applies to.
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SUMMARY

This article demonstrates how to create and manipulate an Excel workbook using Automation from Delphi.

MORE INFORMATION

This article parallels other articles that describe the same process using different languages. For more information, please see the following articles in the Microsoft Knowledge Base:
219151 How To Automate Microsoft Excel from Visual Basic

179706 How To Use MFC to Automate Excel and Create/Format a New Workbook

219430 How To Create and Format an Excel Workbook Using Visual J++

Building the Automation Sample

  1. Start Delphi. A new project should be created by default.
  2. Add a button to Form1.
  3. Replace the contents of the code window for Unit1 with the following:
    unit Unit1;
    
    interface
    
    uses
      Windows, Messages, SysUtils, Classes, Graphics, Controls, Forms, Dialogs,
      StdCtrls;
    
    type
      TForm1 = class(TForm)
        Button1: TButton;
        procedure Button1Click(Sender: TObject);
        procedure DisplayQuarterlySales(oWS : Variant);
      private
        { Private declarations }
      public
        { Public declarations }
      end;
    
    var
      Form1: TForm1;
    
    Const xlVAlignCenter = -4108;
    Const xlThin = 2;
    Const xlEdgeBottom = 9;
    Const xlDouble = -4119;
    Const xlThick = 4;
    Const xl3DColumn = -4100;
    Const xlColumns = 2;
    Const xlLocationAsObject = 2;
    
    implementation
    
    uses ComObj;
    
    {$R *.DFM}
    
    procedure TForm1.DisplayQuarterlySales(oWS : Variant);
    var
      oResizeRange, oChart, oSeries: Variant;
      iNumQtrs,iRet : Integer;
      sMsg : String;
    begin
      // Determine how many quarters to display data for
      for iNumQtrs := 4 downto 2 do
      begin
        sMsg := 'Enter sales data for ' + IntToStr(iNumQtrs) + ' quarter(s)?';
        if MessageDlg(sMsg,mtConfirmation,[mbYes,mbNo],0) = mrYes then
          break;
      end;
      sMsg := 'Displaying data for ' + IntToStr(iNumQtrs) + ' quarter(s).';
      MessageDlg(sMsg,mtInformation,[mbOK],0);
    
      // Starting at E1, fill headers for the number of columns selected
      oResizeRange := oWS.Range['E1:' + Chr(Ord('E') + iNumQtrs - 1) + '1'];
      oResizeRange.Formula := '="Q" & COLUMN()-4 & CHAR(10) & "Sales"';
    
    
      // Change the orientation and WrapText properties for the headers
      oResizeRange.Orientation := 38;
      oResizeRange.WrapText := True;
    
      // Fill the interior color of the headers
      oResizeRange.Interior.ColorIndex := 36;
    
      // Fill the columns with a formula and apply a number format
      oResizeRange := oWS.Range['E2:' + Chr(Ord('E') + iNumQtrs - 1) + '6'];
      oResizeRange.Formula := '=RAND()*100';
      oResizeRange.NumberFormat := '$0.00';
    
      // Apply borders to the Sales  data and headers
      oResizeRange := oWS.Range['E1:' + Chr(Ord('E') + iNumQtrs - 1) + '6'];
      oResizeRange.Borders.Weight := xlThin;
    
      // Add a totals formula for the sales data and apply a border
      oResizeRange := oWS.Range['E8:' + Chr(Ord('E') + iNumQtrs - 1) + '8'];
      oResizeRange.Formula := '=SUM(E2:E6)';
      oResizeRange.Borders.Item[xlEdgeBottom].LineStyle := xlDouble;
      oResizeRange.Borders.Item[xlEdgeBottom].Weight := xlThick;
    
      // Add a chart for the selected data
      oResizeRange := oWS.Range['E2:' + Chr(Ord('E') + iNumQtrs - 1) + '6'];
      oChart := oWS.Parent.Charts.Add;
      oChart.ChartWizard(oResizeRange,xl3DColumn,,xlColumns);
    
      oResizeRange := oWS.Range['A2:A6'];
      oChart.SeriesCollection.Item[1].XValues := oResizeRange;
      iRet := oChart.SeriesCollection.Count;
      for iRet := 1 to iNumQtrs do
      begin
        sMsg :=  '="Q' + IntToStr(iRet) + '"';
        oChart.SeriesCollection.Item[iRet].Name := sMsg;
      end;
      oChart.Location(xlLocationAsObject,oWS.Name);
    
      // Move the chart so as not to cover your data
      oWS.Shapes.Item(1).Top := oWS.Rows.Item[10].Top;
      oWS.Shapes.Item(1).Left := oWS.Columns.Item[2].Left
    end;
    
    procedure TForm1.Button1Click(Sender: TObject);
    var
      oXL, oWB, oSheet, oRng, VArray : Variant;
    begin
      // Start Excel and get Application Object
      oXL := CreateOleObject('Excel.Application');
      oXL.Visible := True;
    
      // Get a new workbook
      oWB := oXL.Workbooks.Add;
      oSheet := oWB.ActiveSheet;
    
      // Add table headers going cell by cell
      oSheet.Cells[1,1] := 'First Name';
      oSheet.Cells[1,2] := 'Last Name';
      oSheet.Cells[1,3] := 'Full Name';
      oSheet.Cells[1,4] := 'Salary';
    
      // Format A1:D1 as bold, vertical alignment = center
      oSheet.Range['A1:D1'].Font.Bold := True;
      oSheet.Range['A1:D1'].VerticalAlignment := xlVAlignCenter;
    
      // Create an array to set multiple values at once
      VArray := VarArrayCreate([0,4,0,1],varVariant);
      VArray[0,0] := 'John';
      VArray[0,1] := 'Smith';
      VArray[1,0] := 'Tom';
      VArray[1,1] := 'Brown';
      VArray[2,0] := 'Sue';
      VArray[2,1] := 'Thomas';
      VArray[3,0] := 'Jane';
      VArray[3,1] := 'Jones';
      VArray[4,0] := 'Adam';
      VArray[4,1] := 'Johnson';
    
    
      // Fill A2:B6 with an array of values
      oSheet.Range['A2:B6'] := VArray;
    
      // Fill C2:C6 with a relative formula (=A2 + ' ' + B2)
      oRng := oSheet.Range['C2:C6'];
      oRng.Formula := '=A2 & " " & B2';
    
      // Fill D2:D6 with a formula (=RAND()*100000) and apply format
      oRng := oSheet.Range['D2:D6'];
      oRng.Formula := '=RAND()*100000';
      oRng.NumberFormat := '$0.00';
    
      // Autofit columns A:D
      oRng := oSheet.Range['A1:D1'];
      oRng.EntireColumn.AutoFit;
    
    
    
      // Manipulate a variable number of columns for Quarterly Sales Data
      DisplayQuarterlySales(oSheet);
    
      // Make sure Excel is visible and give the user control
    
      // of Microsoft Excel's lifetime
      oXL.Visible := True;
      oXL.UserControl := True;
    
    end;
    
    end.
    						
  4. Press the F9 key to run the project. Click the button and Microsoft Excel should start and display a sample worksheet.NOTE: Delphi is manufactured by Borland (Inprise Corporation), a vendor independent of Microsoft; we make no warranty, implied or otherwise, regarding this product's performance of reliability. Contact Inprise for any developer support regarding the Delphi language.

REFERENCES

For more information on Office Automation, please visit the Microsoft Office Development support site at:
http://support.microsoft.com/ofd

Properties

Article ID: 231614 - Last Review: January 24, 2007 - Revision: 4.5
APPLIES TO
  • Microsoft Excel 2000 Standard Edition
  • Microsoft Excel 2002 Standard Edition
  • Microsoft Excel 97 Standard Edition
Keywords: 
kbautomation kbhowto KB231614

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