fast report控件
我打开了fastreport控件自带的calendar例子,
run按钮的事件代码中
Randomize;
frVariables['Year'] := 2000;
frReport1.ShowReport;
我改了一下
Randomize;
frReport1.LoadFromFile('d:\a.xls');
frReport1.ShowReport;
这样编译后,执行,为什么不能显示从a.xls中读入的报表,
提示
Access violation at address 77df4af8 in module 'user32.dll',Read
of address 0000d831
我的目的是用这个报表控件读取Excel中的报表当作模板,显示出来
我打开了fastreport控件自带的calendar例子,
run按钮的事件代码中
Randomize;
frVariables['Year'] := 2000;
frReport1.ShowReport;
我改了一下
Randomize;
frReport1.LoadFromFile('d:\a.xls');
frReport1.ShowReport;
这样编译后,执行,为什么不能显示从a.xls中读入的报表,
提示
Access violation at address 77df4af8 in module 'user32.dll',Read
of address 0000d831
我的目的是用这个报表控件读取Excel中的报表当作模板,显示出来
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procedure TfrmMain.Button3Click(Sender: TObject); //动态打印excel报表
var
tiaojian : string; //tiaojian 为一个sql查询语句,全宗号,目录号,起始日期为一数据库字段
begin
tiaojian := ';
if Edit7.Text <> ' then
begin
tiaojian := tiaojian + ' ( 全宗号=' + EDit7.Text + ' ) and';
end;
if Edit8.Text <> ' then
begin
tiaojian := tiaojian + ' ( 目录号=' + Edit8.Text + ') and';
end;
if Edit9.Text <> ' then
begin
tiaojian := tiaojian + ' ( 起始日期>= ' + Edit9.Text + ' ) and';
end
else tiaojian := tiaojian + ' ( 起始日期>=0) and';
if Edit10.Text <> ' then
begin
tiaojian := tiaojian + ' ( 起始日期<= ' + Edit10.Text + ' ) and';
end;
tiaojian := copy(tiaojian, 1, length(tiaojian) - 3); //tiaojian 为一个sql查询语句
Printanjuan(tiaojian); //调用打印过程
ShellExecute(Handle, 'Open', PChar(GetCurpath + 'temp.xls'), nil, nil, sw_shownormal); //调用excel查看生成的文件
ProgressBar1.Position:=0; //ProgressBar1 为一个进程条控件
end;procedure TfrmMain.Printanjuan(tiaojiao:string);
var
nowhangi, i, jilushu, LCID: integer; //nowhangi当前 execl的所在行,jilushu当前的记录位置
ssql, PathName: string;
oldcur: tcursor;
ExcelApplication1: TExcelApplication;
ExcelWorkbook1: TExcelWorkbook;
ExcelWorkSheet1: TExcelWorksheet;
xl, Cell1: olevariant;
begin
LCID := LOCALE_USER_DEFAULT;
if FileExists(GetCurpath + 'temp.xls') then //删除动态生成的临时temp.xls文件
try
DeleteFile(GetCurpath + 'temp.xls');
except
end;
ssql := '; //执行sql查询
ssql := 'select * from mainanjuan where (' + tiaojiao + ') order by 系统编号 ';
doadosql(dm1.queryanjuan, ssql);
begin
try
ExcelApplication1 := TExcelApplication.Create(Self);
ExcelWorkbook1 := TExcelWorkbook.Create(Self);
ExcelWorkSheet1 := TExcelWorksheet.Create(Self);
except
showmessage('对不起,您没有安装Excel 2000!');
abort;
end;
end;
ExcelApplication1.Connect;
ExcelApplication1.Workbooks.Add(null, 0);
//如果调用一个模板 ,改动该句如:
//ExcelApplication1.Workbooks.Add('c:\zichang.xls', 0);
ExcelWorkBook1.ConnectTo(ExcelApplication1.Workbooks[1]);
ExcelWorkSheet1.ConnectTo(ExcelWorkBook1.Sheets[1] as _WorkSheet);
//写入execl
ProgressBar1.Position:=5;
if dm1.queryanjuan.RecordCount > 0 then
begin
//设置列宽,行高
nowhangi := 1;
ExcelApplication1.Range['A1', 'A1'].ColumnWidth := 3.5;
ExcelApplication1.Range['B1', 'B1'].ColumnWidth := 3.5;
ExcelApplication1.Range['C1', 'C1'].ColumnWidth := 3.5;
ExcelApplication1.Range['D1', 'D1'].ColumnWidth := 8;
ExcelApplication1.Range['E1', 'E1'].ColumnWidth := 20;
ExcelApplication1.Range['F1', 'F1'].ColumnWidth := 8.75;
ExcelApplication1.Range['G1', 'G1'].ColumnWidth := 8.75;
ExcelApplication1.Range['H1', 'H1'].ColumnWidth := 3.0;
ExcelApplication1.Range['I1', 'I1'].ColumnWidth := 3.0;
ExcelApplication1.Range['J1', 'J1'].ColumnWidth := 3.0;
//设置每页的记录数目
for jilushu := 1 to (dm1.queryanjuan.RecordCount) do
begin //ProgressBar1 为一个进程条控件
ProgressBar1.Position:= (jilushu*100) div (dm1.queryanjuan.RecordCount);
try
if jilushu mod strtoint(edit14.Text) = 1 then //edit14.Text的值为一个数字,表示每页的记录数目
begin //打印每页的页头
ExcelApplication1.Range['A' + inttostr(nowhangi), 'J' + inttostr(nowhangi)].Merge(xl);//合并execl单元格
ExcelWorkSheet1.cells.Item[nowhangi, 1].font.Name := fontselectbox.FontName;
ExcelWorkSheet1.cells.Item[nowhangi, 1].font.size := 24;
ExcelWorkSheet1.cells.Item[nowhangi, 1].RowHeight := 32;
ExcelWorkSheet1.cells.Item[nowhangi, 1] := '案卷目录';
ExcelWorkSheet1.cells.Item[nowhangi, 1].HorizontalAlignment := xlCenter;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 1].font.Name := fontselectbox.FontName;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 1].font.size := 12;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 1].Font.Bold := True;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 1].Orientation := xlVertical;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 1].VerticalAlignment := xlTop;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 1] := '顺序号';
ExcelWorkSheet1.cells.Item[nowhangi + 1, 2].font.Name := fontselectbox.FontName;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 2].font.size := 12;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 2].Font.Bold := True;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 2].Orientation := xlVertical;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 2].VerticalAlignment := xlTop;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 2] := '全宗号';
ExcelWorkSheet1.cells.Item[nowhangi + 1, 3].font.Name := fontselectbox.FontName;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 3].font.size := 12;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 3].Font.Bold := True;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 3].Orientation := xlVertical;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 3].VerticalAlignment := xlTop;
ExcelWorkSheet1.cells.Item[nowhangi + 1, 3] := '目录号';
//加入分页符号
if (jilushu div strtoint(edit14.Text) > 0) then
begin
Cell1 := ExcelWorksheet1.Cells.Item[nowhangi, 11];
ExcelWorksheet1.VPageBreaks.Add(Cell1);
ExcelWorksheet1.HPageBreaks.Add(Cell1);
end;
nowhangi := nowhangi + 2;
end;
//打印查询数据
ExcelWorkSheet1.cells.Item[nowhangi, 1].RowHeight := 60;
ExcelWorkSheet1.cells.Item[nowhangi, 1].font.Name := fontselectbox.FontName;
ExcelWorkSheet1.cells.Item[nowhangi, 1].font.size := strtoint(Edit11.text);
ExcelWorkSheet1.cells.Item[nowhangi, 1].WrapText := True;
ExcelWorkSheet1.cells.Item[nowhangi, 1] := inttostr(jilushu);
ExcelWorkSheet1.cells.Item[nowhangi, 2].font.Name := fontselectbox.FontName;
ExcelWorkSheet1.cells.Item[nowhangi, 2].WrapText := True;
ExcelWorkSheet1.cells.Item[nowhangi, 2].font.size := strtoint(Edit11.text);
ExcelWorkSheet1.cells.Item[nowhangi, 2] := dm1.queryanjuan.fieldbyname('全宗号').asstring;
ExcelWorkSheet1.cells.Item[nowhangi, 3].font.Name := fontselectbox.FontName;
ExcelWorkSheet1.cells.Item[nowhangi, 3].WrapText := True;
ExcelWorkSheet1.cells.Item[nowhangi, 3].font.size := strtoint(Edit11.text);
ExcelWorkSheet1.cells.Item[nowhangi, 3] := dm1.queryanjuan.fieldbyname('目录号').asstring;
except
end;
dm1.queryanjuan.Next;
nowhangi := nowhangi + 1;
end;
end;
try //插入页码
ExcelWorkSheet1.PageSetup.RightHeader := '&9第&P 页 共&N页';
except
showmessage('您可能没有安装打印机');
end;
for i := 1 to nowhangi - 1 do //画单元格边框
if taoda.Checked then
begin
with ExcelApplication1.Range['A' + inttostr(i), 'J' + inttostr(i)].Borders do
begin
LineStyle := xlContinuous;
Weight := xlThin;
ColorIndex := xlAutomatic;
end;
end;
ExcelWorkBook1.SaveCopyAs(GetCurpath + 'temp.xls');
ExcelApplication1.DisplayAlerts[LCID] := False;
ExcelApplication1.Quit;
ExcelWorksheet1.Disconnect;
ExcelWorkbook1.Disconnect;
ExcelApplication1.Disconnect;end;procedure TfrmMain.DoAdoSql(CurADODS: TADODataSet; SSql: string);
var
oldcur: tcursor;
begin
sb1.Panels[0].Text := '正在查询数据……'; //sb1:Tstatusbar控件
sb1.Refresh;
oldcur := Screen.Cursor;
screen.cursor := crHourGlass;
try
if CurADODS.Active = true then CurADODS.Close;
CurADODS.CommandText := SSql;
CurADODS.Open;
finally
screen.Cursor := oldcur;
end;
end;
我要求用FASTREPORT的一个功能读入一个Excel表,用于生成一个报表
也就是说,用Fastreport报表生成一个和Excel表完全一样的表
可以么??
我的构思是把fastreport报表上的控件处理到一个variant数组上并记录他的name,left和top,height,width等,然后再作转换