Solved

Problem with TAB on a form

Posted on 1998-06-19
8
526 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.
0
Comment
Question by:jpdupont
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 5
  • 3
8 Comments
 
LVL 3

Accepted Solution

by:
vladika earned 100 total points
ID: 1354153
property TabStop
0
 

Author Comment

by:jpdupont
ID: 1354154
A form had a TabStop property ???
0
 
LVL 3

Expert Comment

by:vladika
ID: 1354155
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;

0
VIDEO: THE CONCERTO CLOUD FOR HEALTHCARE

Modern healthcare requires a modern cloud. View this brief video to understand how the Concerto Cloud for Healthcare can help your organization.

 
LVL 3

Expert Comment

by:vladika
ID: 1354156
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

0
 

Author Comment

by:jpdupont
ID: 1354157
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
0
 

Author Comment

by:jpdupont
ID: 1354158
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
0
 
LVL 3

Expert Comment

by:vladika
ID: 1354159
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 :)

0
 
LVL 3

Expert Comment

by:vladika
ID: 1354160
Answer is
1) use TabStop property to exclude/include control from/in "tab circle"
2) use GetTabOrderList for full "tab circle" control


0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article explains how to create forms/units independent of other forms/units object names in a delphi project. Have you ever created a form for user input in a Delphi project and then had the need to have that same form in a other Delphi proj…
In my programming career I have only very rarely run into situations where operator overloading would be of any use in my work.  Normally those situations involved math with either overly large numbers (hundreds of thousands of digits or accuracy re…
Monitoring a network: why having a policy is the best policy? Michael Kulchisky, MCSE, MCSA, MCP, VTSP, VSP, CCSP outlines the enormous benefits of having a policy-based approach when monitoring medium and large networks. Software utilized in this v…
This tutorial will teach you the special effect of super speed similar to the fictional character Wally West aka "The Flash" After Shake : http://www.videocopilot.net/presets/after_shake/ All lightning effects with instructions : http://www.mediaf…
Suggested Courses
Course of the Month7 days, 15 hours left to enroll

617 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question