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Problem with TAB on a form

jpdupont
jpdupont asked
on
Medium Priority
603 Views
Last Modified: 2008-02-01
On form1 I drop about 10 Edit Controls. I move to controls with TAB key. When I'm on the 10th edit, I go to the first with tab.OK.

Next, I create  form2 as child (like a toolbar) of form1.
Now , when I'm on the 10th edit, if I press TAB, I go to the form2, then (next tab) to the first edit.

How avoid this ?
How exclude the form2 from the "tab circle" ?
I want to never set the focus to the form2 when I press TAB.
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Commented:
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Author

Commented:
A form had a TabStop property ???

Commented:
Yes, in run-time mode

Any WinControl has TabStop property (see in help)
Some controls has public TabStop property
others controls has published TabStop property

Form has PUBLIC TabStop property

write handler OnFormCreate
  Form.TabStop := False;

Commented:
Also you can override procedure GetTabOrderList(List: TList)

For example
type
  TForm1 = class(TForm)
  public
    procedure GetTabOrderList(List: TList); override;
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.GetTabOrderList(List: TList);
var
  I: Integer;
  P: TWinControl;
begin
  inherited GetTabOrderList(List);
  if (ActiveControl = nil) or (ActiveControl.Parent = nil) then Exit;
  P := ActiveControl.Parent;
  for I := List.Count-1 downto 0 do
    if P <> TControl(List[I]).Parent then List.Delete(I);
end;
// In this example "tab circle" is controls which have same parent as ActiveControl

Author

Commented:
Vladika,

Thanks for the help.
1/I just try the TabStop property (OnCreate ...) : don'twork.
2/I see your comment, and I try this as soon as possible.

Thanks again
Jean-Pol

Author

Commented:
Hi,
Your code don't work.
I put this in the code to create a child window :

procedure TWCombo.CreateParams(var Params: TCreateParams);
begin
  inherited CreateParams(Params);
  with Params do begin
    Style := (Style or WS_CHILD) and (not WS_POPUP);
    WndParent := Application.MainForm.Handle;
  end;
  Parent := Application.MainForm;
end;

Correct ?

Regards,
JP

Commented:
Hi!

1) From which is TWCombo inherited?
2) Is TWCombo design-time component?
3) I think CreateParams should look as

procedure TWCombo.CreateParams(var Params: TCreateParams);
begin
  inherited CreateParams(Params);
  with Params do
    Style := (Style or WS_CHILD) and (not WS_POPUP);
end;

. and when you create TWCombo ...
W := TWCombo.Create(Form1);
W.TabStop := False;
W.Parent := Form1;
......... W initialization (set height, width etc)........

4) if you wish you can send me program by email demon@dezcom.mephi.ru or
Dmitri_Ulitski@dialogbank.com and I try to help you
5) sorry for english :)

Commented:
Answer is
1) use TabStop property to exclude/include control from/in "tab circle"
2) use GetTabOrderList for full "tab circle" control


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