Hide column during Printing

VCL TMS VCL UI Pack
1

Hello
I would like to know which is the best way to hide some columns in the preview dialog (print).
I mean. My grid have some columns with width = 0. (hidden).
Unfortunately the advpreviewdilaog show this column during printing. I would like to know how to hide.
Thanks

2

The correct way to hide a column is to call grid.HideColumn(columnindex);

3

Dear Bruno.
I use your methods in order to hide a column. And Works. But my aim is to hide columns only during printing (dialog printing) and not hide in the form. Which is the right way to achieve so?
Many Thanks

4

Hide the column before calling grid.Print and after this call, unhide again?

5

Yes.. i will try but.. I would like to avoid flickering of the grid. I hope that there was a property of a column such "printing" or other that setted to false not print.. However..i will do so as you suggest me
Thanks

6

procedure TFormMontaggioSmontaggioPrepare.AdvPreviewDialog1Close(
  Sender: TObject);
begin
   with DbgMontaggioSmontaggio Do
  Begin

    UnHideColumn(DbgMontaggioSmontaggio.ColumnByName['colStatus'].Index);
    UnHideColumn(DbgMontaggioSmontaggio.ColumnByName['colCHI_SOST'].Index);
  End;
end;

procedure TFormMontaggioSmontaggioPrepare.AdvPreviewDialog1Show(
  Sender: TObject);
begin
  with DbgMontaggioSmontaggio Do
  Begin
    HideColumn(DbgMontaggioSmontaggio.ColumnByName['colStatus'].Index);
    HideColumn(DbgMontaggioSmontaggio.ColumnByName['colCHI_SOST'].Index);
  End;
end;

7

sorry .. I put the code above..but the events does not fire

8
  1. We've fixed the issue with OnClose/OnShow on the TAdvPreviewDialog. Next update will address this.
    2) To hide/unhide without updating the screen, you can do this between grid.BeginUpdate/grid.EndUpdate statements.