> Hi,
>
> I am trying to create, at run time, a number of instances of a TTreeView.
I have
> created a class of this type and I will add some methods to this. I can
create this
> in one unit and, when I press a button on my form, things seem to work but
I
> cannot get this new object to display. The code that I have for the
button click is
>
> procedure TForm1.Button1Click(Sender: TObject);
> var
> MyList1, Q: PMyList;
> begin
> New(Q);
> MyList1 := Q;
> MyList1.Visible := True;
> end;
Replace with...
begin
MyList1 := PMyList.Create(Self);
MyList1.Parent := Self;
MyList1.Visible := True;
MyList1.Left := .... etc
end;
... or similar.
New is for allocating memory for pointing to records etc. You should use the
Create constructor method for creating objects.
David
DB Solutions Ltd.
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