Exporting data from a DBGrid to Excel - excel

Question

I wanted to know if anyone ones a way that I can export data from a DBGrid to Excel ? I am using Delphi 7 , Excel 2007 and ADO .
Any help will be appreciated.

Answer 1

If you want a fast export of raw data, just export your recordset (ADODataset.recordset) with something like that:
procedure ExportRecordsetToMSExcel(DestName: string; Data: _Recordset);
var
ovExcelApp: OleVariant;
ovExcelWorkbook: OleVariant;
ovWS: OleVariant;
ovRange: OleVariant;
begin
ovExcelApp := CreateOleObject('Excel.Application'); //If Excel isnt installed will raise an exception
try
ovExcelWorkbook := ovExcelApp.WorkBooks.Add;
ovWS := ovExcelWorkbook.Worksheets.Item[1]; // go to first worksheet
ovWS.Activate;
ovWS.Select;
ovRange := ovWS.Range['A1', 'A1']; //go to first cell
ovRange.Resize[Data.RecordCount, Data.Fields.Count];
ovRange.CopyFromRecordset(Data, Data.RecordCount, Data.Fields.Count); //this copy the entire recordset to the selected range in excel
ovWS.SaveAs(DestName, 1, '', '', False, False);
finally
ovExcelWorkbook.Close(SaveChanges := False);
ovWS := Unassigned;
ovExcelWorkbook := Unassigned;
ovExcelApp := Unassigned;
end;
end;

Answer 2

It is working by using Tfilestream component
procedure TForm2.ExportdatatoexcelClick(Sender: TObject);
var
Stream: TFileStream;
i: Integer;
OutLine,f: string;
sTemp,s: string;
begin
Stream := TFileStream.Create('D:\Yogesh Delphi\employee1.csv', fmCreate);
try
s := string(adotable1.Fields[0].FieldName);
for I := 1 to adotable1.FieldCount - 1 do
begin
s:= s+ ',' + string(adotable1.Fields[I].FieldName);
end;
s:= s+ #13#10;
stream.Write(s[1], Length(s) * SizeOf(Char));
{S := '';
for I := 0 to adotable1.FieldCount - 1 do
begin
S := (adotable1.Fields[I].FieldName);
outline := OutLine+S + ' ,';
end; }
while not adotable1.Eof do
begin
// You'll need to add your special handling here where OutLine is built
s:='';
OutLine := '';
for i := 0 to adotable1.FieldCount - 1 do
begin
sTemp := adotable1.Fields[i].AsString;
// Special handling to sTemp here
OutLine := OutLine + sTemp +',';
end;
// Remove final unnecessary ','
SetLength(OutLine, Length(OutLine) - 1);
// Write line to file
Stream.Write(OutLine[1], Length(OutLine) * SizeOf(Char));
// Write line ending
Stream.Write(sLineBreak, Length(sLineBreak));
adotable1.Next;
end;
finally
Stream.Free; // Saves the file
end;
showmessage('Records Successfully Exported.') ;
end;
{Yog}