You need to include a loop before your for I loop to write the field names to
the Data VarArray:
for C:= 0 to DS.Fieldcount-1 do Data[0,C]:= DS.Fields[C].FieldName;
The I in your for I / for J loop will then have to be +1:
for J := 0 to DS.FieldCount - 1 do
Data[I + 1, J] := DS.Fields[J].Value;
DS.Next;
Alternatively you could create a second, one-dimensional, VarArray with bounds
of [0, DS.FieldCount-1]. In this case when you come to write the Headers,
TopLeftCell will be ExcelApp.Range['A1'] and for the Data TopLeftCell will have
to be ExcelApp.Range['B1'];
Hopefully one or other will work.
Regards
Steve
From: delphi-en@yahoogroups.com [mailto:[EMAIL PROTECTED] On Behalf Of
ron_tabada
Sent: 27 November 2007 04:50
To: delphi-en@yahoogroups.com
Subject: [delphi-en] Zeos Dataset to excel: Field names missing
procedure DataSetToExcel(DS: TDataSet; const Filename: string);
var
ExcelApp,
WorkBook,
WorkSheet,
TopLeftCell: Variant;
Data: Variant;
Finger: string;
I, J: Integer;
begin
// source:
http://www.elists.org/pipermail/delphi-talk/2005-February/020132.html
//No operation for an empty dataset
if DS.Bof and DS.Eof then Exit;
//Create a variant array with all the specified data
Data := VarArrayCreate([0, DS.RecordCount - 1, 0, DS.FieldCount - 1],
varVariant);
DS.DisableControls;
try
Finger := DS.Bookmark;
try
DS.First;
for I := 0 to DS.RecordCount - 1 do
begin
for J := 0 to DS.FieldCount - 1 do
Data[I, J] := DS.Fields[J].Value;
DS.Next;
end;
finally
DS.Bookmark := Finger;
end;
finally
DS.EnableControls;
end;
ExcelApp := CreateOleObject('Excel.Application');
WorkBook := ExcelApp.WorkBooks.Add;
WorkSheet := WorkBook.WorkSheets.Add;
//Put the data in the rectangle starting at cell "A1"
TopLeftCell := ExcelApp.Range['A1'];
ExcelApp.Range[TopLeftCell,
TopLeftCell.Offset[DS.RecordCount - 1, DS.FieldCount - 1]].Value :=
Data;
//Save the workbook
Workbook.SaveAs(FileName);
//Quit Excel (leave this one away to keep Excel on screen)
ExcelApp.Quit;
end;
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