http://dn.codegear.com/article/32047 2008-12-04T12:34:37-08:00 henk holterman http://threads.codegear.com/threads/threads.exe/userall?commentid=36969 http://threads.codegear.com/threads/threads.exe/view?commentid=36969 2004-06-14T03:03:02-07:00 2004-06-14T03:03:02-07:00

re: Replacing TabSheets with Frames

> Frames can be easly replaced by TForms which > are much more suitable for visual inheritence. Are you sure? Forms can be nested inside other Forms allright but I remember some issues about not cooperating well with the mainForm for Hotkeys and/or ActionsFrames are more 'neutral' and if you want them to br free-floating you can easily mount them in a (ToolWin) Form-hh- Ivan Lucena http://threads.codegear.com/threads/threads.exe/userall?commentid=36816 http://threads.codegear.com/threads/threads.exe/view?commentid=36816 2004-06-01T11:23:49-07:00 2004-06-01T11:23:49-07:00

re: Replacing TabSheets with Frames

You know what? It could be easier than that if you use "ManualDock":- Create a new Application and drop a PageControl;- Create a new Form and add the following 2 lines at OnCreate:procedure TForm2.FormCreate(Sender: TObject);begin ManualDock(Form1.PageControl1, nil, alClient); Show;end;If you found a problem with that let me know!Ivan Piotr Likus http://threads.codegear.com/threads/threads.exe/userall?commentid=36660 http://threads.codegear.com/threads/threads.exe/view?commentid=36660 2004-05-11T00:51:35-07:00 2004-05-11T00:51:35-07:00

Replacing TabSheets with Frames

Frames can be easly replaced by TForms which are much more suitable for visual inheritence. I've received several signals that TFrames are buggy in property saving. TForms can be displayed alone or inside TCustomPanel, probably also on TTabSheet. For TForms you can use the example code below:-------------------------------------------------------procedure TMyForm.ShowInPanel(APanel: TCustomPanel);begin Self.Hide; Self.BorderStyle := bsNone; Self.Parent := APanel; Self.Align := alClient; Self.Show;end;procedure TMyForm.HideFromPanel;begin Self.Hide; Self.Parent := nil;end; Patrick Foley http://threads.codegear.com/threads/threads.exe/userall?commentid=36658 http://threads.codegear.com/threads/threads.exe/view?commentid=36658 2004-05-10T22:11:03-07:00 2004-05-10T22:11:03-07:00

Replacing TabSheets with Frames

No wonder I never was to get the frames to work! One thing I do is use tabsheets in the IDE and hide them in runtime. Also an old Tex and X MDI trick I use is assigning a forms owner to a tabsheet instead. Further improvement is to develop a form and place its sub directory in the main project leave the form's project file inplace but import the unit into the main project. This allows the unitto be fine tuned later without messing with the main code. Alsothe main code is lighter in IDE and loading too!-Pat Dan Miser http://threads.codegear.com/threads/threads.exe/userall?commentid=36657 http://threads.codegear.com/threads/threads.exe/view?commentid=36657 2004-05-10T13:19:02-07:00 2004-05-10T13:19:02-07:00

re: Replacing TabSheets with Frames

Thanks much to everyone for all of the feedback so far. I'll definitely take a look at implementing Hallvard's AutoFree suggestion. Perhaps I'll take the extra effort and wrap up a TPageControl descendant as well, and then update both CodeCentral and this article with the new improvements.Keep the comments coming, guys! Hallvard Vassbotn http://threads.codegear.com/threads/threads.exe/userall?commentid=36652 http://threads.codegear.com/threads/threads.exe/view?commentid=36652 2004-05-10T07:34:23-07:00 2004-05-10T07:34:23-07:00

Replacing TabSheets with Frames

Nice article and technique, Dan.One improvement: // You can get AVs due to Tabsheet.OnHide destroying the frame and code relying // on the frame to still be there in e.g. PageControl1.OnChange/OnChanging if AutoFreeFrame then DestroyFrame(Sender as TTabsheet);The decision to AutoFree the frame should probably be left to the frame itself. It is in a better position than the hosting form to decide if the resource reduction gained is worth the time and effort to recreate the frame contents later (rereading stuff from a server, for instance). The descision could even change at runtime depending on the actual contents.I would extend the OnHide method to include a var AutoFree: boolean parameter for this (or just add another method to the interface, or add another interface). Hallvard Vassbotn http://threads.codegear.com/threads/threads.exe/userall?commentid=36651 http://threads.codegear.com/threads/threads.exe/view?commentid=36651 2004-05-10T07:30:32-07:00 2004-05-10T07:30:32-07:00

re: Replacing TabSheets with Frames

> your frame has to descend from TFrameThis is not strictly true. As long as the TBaseFrame is also a visual frame that inherits from TFrame, and the TBaseFrame is registered as part of the project, you can inherit from TBaseFram in your secondary frames. Doychin Bondzhev http://threads.codegear.com/threads/threads.exe/userall?commentid=36630 http://threads.codegear.com/threads/threads.exe/view?commentid=36630 2004-05-08T00:08:35-07:00 2004-05-08T00:08:35-07:00

Replacing TabSheets with Frames

Well the article is good but it misses one major problem when using frames and it is the limitation that IDE sets that if you want to desing a frame with Delphi your frame has to descend from TFrame. You can't desing anything that does not descend from TFrame so you you will loose the RAD aproach when you put somthing betinw your actual frame class and TFrame.Doychin Rossen Assenov http://threads.codegear.com/threads/threads.exe/userall?commentid=36627 http://threads.codegear.com/threads/threads.exe/view?commentid=36627 2004-05-07T16:30:38-07:00 2004-05-07T16:30:38-07:00

Replacing TabSheets with Frames

Dan,This is a nice extension to the TFrame but still requires some manual coding ;) and suffers from some of the same problems. And you cannot see the frames embeded in the tab sheet at design time.I've written a similar framework a few weeks ago - it uses TForm and it doesn't have the problems associated with using frames. You can see how everything looks at design time and it doesn't need coding :).Take a look at : http://codecentral.borland.com/codecentral/ccWeb.exe/listing?id=21696Regards,Rossen Assenov