Function DataSetToExcelSheet(DataSet:TDataSet;FieldTagMax:Integer;Sheet:OleVariant): Boolean;
var
Row,Col,FieldIndex :Integer;
BK:TBookMark;
begin
Result := False;
if not Dataset.Active then exit;
BK:=DataSet.GetBookMark;
DataSet.DisableControls;
Sheet.Activate;
try
// 列标题
Row:=1;
Col:=1;
for FieldIndex:=0 to DataSet.FieldCount-1 do
begin
if DataSet.Fields[FieldIndex].Tag <= FieldTagMax then
begin
Sheet.Cells(Row,Col) :=DataSet.Fields[FieldIndex].DisplayLabel;
Inc(Col);
end;
end;
// 表内容
DataSet.First;
while Not DataSet.Eof do
begin
Row:=Row+1;
Col:=1;
for FieldIndex:=0 to DataSet.FieldCount-1 do
begin
if DataSet.Fields[FieldIndex].Tag <= FieldTagMax then
begin
Sheet.Cells(Row,Col):=DataSet.Fields[FieldIndex].AsString;
Inc(Col);
end;
end;
DataSet.Next;
end;
Result := True;
finally
DataSet.GotoBookMark(BK);
DataSet.EnableControls;
end;
end;
Function DataSetToExcel(
DataSet:TDataSet;FieldTagMax:Integer;
Visible:Boolean;ExcelFileName:String=''): Boolean;
var
ExcelObj, Excel, WorkBook, Sheet: OleVariant;
OldCursor:TCursor;
SaveDialog:TSaveDialog;
begin
Result := False;
if not Dataset.Active then exit;
Result:=DataSetToExcelSheet(DataSet,FieldTagMax,Sheet) ;
if Result then
if Not Visible then
begin
if ExcelFileName<>''
then WorkBook.SaveAs(FileName:=ExcelFileName)
else begin
SaveDialog:=TSaveDialog.Create(Nil);
SaveDialog.Filter := 'Microsoft Excel 文件¦*.xls';
Result:=SaveDialog.Execute;
UpdateWindow(GetActiveWindow);
if Result then
WorkBook.SaveAs(FileName:=SaveDialog.FileName);
SaveDialog.Free;
end;
Excel.Quit;
end;
Screen.Cursor:=OldCursor;
end;