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ituneksa
PostPosted: 02 Nov 2024, 18:05 
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Joined: 14 Jul 2022, 08:46
Posts: 28
Hi
Pls see the attached file.
In tree View It is possible to control the father node (circle red color) to stop expand the children node .

Best Regards


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EhLibSupport
PostPosted: 04 Nov 2024, 10:15 
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Joined: 08 May 2014, 18:06
Posts: 688
Hello

If you want to prevent a branch from opening when the user clicks the Plus sign, you can use the TMemTableEh.OnRecordsViewTreeNodeExpanding event as follows:

Code:
procedure TForm1.MemTableEh1RecordsViewTreeNodeExpanding(Sender: TObject;
  Node: TMemRecViewEh; var AllowExpansion: Boolean);
begin
  if (Node.Rec.DataValues['ID', TDataValueVersionEh.dvvValueEh] = 3) then
    AllowExpansion := False;
end;


ID is a field in the TMemTableEh table.

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EhLib Support Team
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