示例中,dbgrid(DBGrid1)具有一个弹出菜单,它给出两个选项:"Send to Excel" 和 "Copy". 下面给出用到的方法: //注意:下面的方法必须包含 ComObj, Excel97 单元 //----------------------------------------------------------- // if toExcel = false, export dbgrid contents to the Clipboard // if toExcel = true, export dbgrid to Microsoft Excel procedure ExportDBGrid(toExcel: Boolean); var bm: TBook; col, row: Integer; sline: String; mem: TMemo; ExcelApp: Variant; begin Screen.Cursor := crHourglass; DBGrid1.DataSource.DataSet.DisableControls; bm := DBGrid1.DataSource.DataSet.GetBook; DBGrid1.DataSource.DataSet.First;
// create the Excel object if toExcel then begin ExcelApp := CreateOleObject('Excel.Application'); ExcelApp.WorkBooks.Add(xlWBatWorkSheet); ExcelApp.WorkBooks[1].WorkSheets[1].Name := 'Grid Data'; end;
// First we send the data to a memo // works faster than doing it directly to Excel mem := TMemo.Create(Self); mem.Visible := false; mem.Parent := MainForm; mem.Clear; sline := '';
// add the info for the column names for col := 0 to DBGrid1.FieldCount-1 do sline := sline + DBGrid1.Fields[col].DisplayLabel + #9; mem.Lines.Add(sline);
// get the data into the memo for row := 0 to DBGrid1.DataSource.DataSet.RecordCount-1 do begin sline := ''; for col := 0 to DBGrid1.FieldCount-1 do sline := sline + DBGrid1.Fields[col].AsString + #9; mem.Lines.Add(sline); DBGrid1.DataSource.DataSet.Next; end;
// we copy the data to the clipboard mem.SelectAll; mem.CopyToClipboard;
// if needed, send it to Excel // if not, we already have it in the clipboard if toExcel then begin ExcelApp.Workbooks[1].WorkSheets['Grid Data'].Paste; ExcelApp.Visible := true; end;
DBGRID中的数据导出到EXCEL中:procedure TForm_gchhs.toexcel(grid:tdbgrid;qu:tdataset); var eclApp,WorkBook:Variant; xlsFileName:string; L: Integer; s, lang:string; i,j:integer; jj:integer; xssz:array [0..100] of integer; xssm:array [0..100] of string; k:integer; kk:integer; beginif form_gchhs.s.Execute then begin xlsFileName:= form_gchhs.s.FileName; try //创建OLE对象Excel Application与 WorkBook eclApp:=CreateOLEObject('Excel.Application'); WorkBook:=CreateOLEObject('Excel.Sheet'); except ShowMessage('您的机器里未安装Microsoft Excel。'); Exit; end; for i:=0 to 100 do begin xssz[i]:=0; xssm[i]:=''; end; k:=-1; l:=1; workBook:=eclApp.workBooks.Add; for i:=0 to grid.Columns.Count -1 do begin if grid.Columns[i].visible=true then begin k:=k+1; xssz[k]:=i; for kk:=0 to qu.FieldCount -1 do begin if qu.Fields[kk].fieldname=grid.columns[i].fieldname then xssz[k]:=kk; end; xssm[k]:=grid.columns[i].title.caption; eclApp.Cells(l , k+1):=xssm[k]; end; end; with qu do begin first; while not qu.eof do begin l:=l+1; for j:=0 to k do eclApp.Cells(l , j+1):=fields[xssz[j]].AsString; qu.next; end; end; WorkBook.saveas(xlsFileName); WorkBook.Close; eclApp.Quit; //退出Excel Application //释放VARIANT变量 //eclApp:=Unassigned; ShowMessage('文件已保存!'); end; end;
下面给出用到的方法:
//注意:下面的方法必须包含 ComObj, Excel97 单元
//-----------------------------------------------------------
// if toExcel = false, export dbgrid contents to the Clipboard
// if toExcel = true, export dbgrid to Microsoft Excel
procedure ExportDBGrid(toExcel: Boolean);
var
bm: TBook;
col, row: Integer;
sline: String;
mem: TMemo;
ExcelApp: Variant;
begin
Screen.Cursor := crHourglass;
DBGrid1.DataSource.DataSet.DisableControls;
bm := DBGrid1.DataSource.DataSet.GetBook;
DBGrid1.DataSource.DataSet.First;
// create the Excel object
if toExcel then
begin
ExcelApp := CreateOleObject('Excel.Application');
ExcelApp.WorkBooks.Add(xlWBatWorkSheet);
ExcelApp.WorkBooks[1].WorkSheets[1].Name := 'Grid Data';
end;
// First we send the data to a memo
// works faster than doing it directly to Excel
mem := TMemo.Create(Self);
mem.Visible := false;
mem.Parent := MainForm;
mem.Clear;
sline := '';
// add the info for the column names
for col := 0 to DBGrid1.FieldCount-1 do
sline := sline + DBGrid1.Fields[col].DisplayLabel + #9;
mem.Lines.Add(sline);
// get the data into the memo
for row := 0 to DBGrid1.DataSource.DataSet.RecordCount-1 do
begin
sline := '';
for col := 0 to DBGrid1.FieldCount-1 do
sline := sline + DBGrid1.Fields[col].AsString + #9;
mem.Lines.Add(sline);
DBGrid1.DataSource.DataSet.Next;
end;
// we copy the data to the clipboard
mem.SelectAll;
mem.CopyToClipboard;
// if needed, send it to Excel
// if not, we already have it in the clipboard
if toExcel then
begin
ExcelApp.Workbooks[1].WorkSheets['Grid Data'].Paste;
ExcelApp.Visible := true;
end;
FreeAndNil(mem);
// FreeAndNil(ExcelApp);
DBGrid1.DataSource.DataSet.GotoBook(bm);
DBGrid1.DataSource.DataSet.FreeBook(bm);
DBGrid1.DataSource.DataSet.EnableControls;
Screen.Cursor := crDefault;
end;
var
eclApp,WorkBook:Variant;
xlsFileName:string;
L: Integer;
s, lang:string;
i,j:integer;
jj:integer;
xssz:array [0..100] of integer;
xssm:array [0..100] of string;
k:integer;
kk:integer;
beginif form_gchhs.s.Execute then
begin
xlsFileName:= form_gchhs.s.FileName;
try
//创建OLE对象Excel Application与 WorkBook
eclApp:=CreateOLEObject('Excel.Application');
WorkBook:=CreateOLEObject('Excel.Sheet');
except
ShowMessage('您的机器里未安装Microsoft Excel。');
Exit;
end;
for i:=0 to 100 do
begin
xssz[i]:=0;
xssm[i]:='';
end;
k:=-1;
l:=1;
workBook:=eclApp.workBooks.Add;
for i:=0 to grid.Columns.Count -1 do
begin
if grid.Columns[i].visible=true then
begin
k:=k+1;
xssz[k]:=i;
for kk:=0 to qu.FieldCount -1 do
begin
if qu.Fields[kk].fieldname=grid.columns[i].fieldname then
xssz[k]:=kk;
end;
xssm[k]:=grid.columns[i].title.caption;
eclApp.Cells(l , k+1):=xssm[k];
end;
end;
with qu do
begin
first;
while not qu.eof do
begin
l:=l+1;
for j:=0 to k do
eclApp.Cells(l , j+1):=fields[xssz[j]].AsString;
qu.next;
end;
end;
WorkBook.saveas(xlsFileName);
WorkBook.Close;
eclApp.Quit;
//退出Excel Application
//释放VARIANT变量
//eclApp:=Unassigned;
ShowMessage('文件已保存!');
end;
end;