如何获取所选单元格的总和值或stringgrid中的范围？请注意,有时这些单元格包含字符串值！
我尝试使用GridCoord,但它不能正常工作,因为有时候会有“隐藏列”.
procedure TMainShowForm.StgSelectionChanged(Sender: TObject; ALeft,ATop,ARight,ABottom: Integer);
var
i: Integer;
gc: TGridCoord;
sum:double;
begin
for i := 1 to stg.SelectedCellsCount do
begin
gc := stg.SelectedCell[i - 1];
sum:=sum+stg.floats[(gc.X),(gc.Y)];
end;
AdvOfficeStatusBar1.Panels[0].Text:='Sum = '+ formatfloat('#,##0.',sum);
AdvOfficeStatusBar1.Panels[1].Text:='Count = '+ inttostr(stg.SelectedCellsCount);
end;
解决方法
如何在TStringGrid中获取选择的浮点值的总和？
对于标准的Delphi TStringGrid,例如：
procedure TForm1.Button1Click(Sender: TObject);
var
Sum: Double;
Val: Double;
Col: Integer;
Row: Integer;
begin
Sum := 0;
for Col := StringGrid1.Selection.Left to StringGrid1.Selection.Right do
for Row := StringGrid1.Selection.Top to StringGrid1.Selection.Bottom do
if TryStrToFloat(StringGrid1.Cells[Col,Row],Val) then
Sum := Sum + Val;
ShowMessage('Sum of the selection is ' + FloatToStr(Sum) + '.');
end;
如何在TAdvStringGrid中获取选择(包括不可见单元格)的浮点值的总和？
因此,您最有可能使用TAdvStringGrid,您可以尝试以下尚未测试或优化的代码.到目前为止,我发现,您可以使用AllFloats属性以浮动方式访问所有网格单元格而不管隐藏的列或行.假设您想在隐藏某个列后对连续选择求和,您可以尝试以下代码：
procedure TForm1.Button1Click(Sender: TObject);
var
Sum: Double;
Col: Integer;
Row: Integer;
begin
Sum := 0;
for Col := AdvStringGrid1.Selection.Left to AdvStringGrid1.Selection.Right do
for Row := AdvStringGrid1.Selection.Top to AdvStringGrid1.Selection.Bottom do
Sum := Sum + AdvStringGrid1.AllFloats[Col,Row];
ShowMessage('Sum of the selection is ' + FloatToStr(Sum) + '.');
end;