In that case I will need a test case that reproduces the problem. I 
understood you relayout with an orientation listener from previous comments.
On Saturday, September 26, 2020 at 12:44:58 PM UTC+3 P5music wrote:

> Thank you, but no form is added or removed, it is just the orientation 
> change happening.
>
> Il giorno venerdì 25 settembre 2020 alle 05:55:18 UTC+2 Shai Almog ha 
> scritto:
>
>> FAB wasn't designed for form adding/removing. There's a bit of logic 
>> there. I'll try to add an unbind() method for next weeks update.
>>
>> On Thursday, September 24, 2020 at 10:08:30 AM UTC+3 P5music wrote:
>>
>>> Yes, I remember that discussion, I also adopted your solution, but the 
>>> fab now is bound to a form, so why is the runtime complaining?
>>> If fab is problematic, what's the solution? Is this an issue?
>>> Thanks
>>>
>>> Il giorno giovedì 24 settembre 2020 alle 04:41:33 UTC+2 Shai Almog ha 
>>> scritto:
>>>
>>>> Fab is a bit problematic in that sense. You don't add it to a 
>>>> container. You bind it.
>>>> It also acts differently depending on your target container, see this 
>>>> recent discussion: 
>>>> https://stackoverflow.com/questions/63845751/codenameone-floating-action-button-binding-error/63856717
>>>>
>>>> On Wednesday, September 23, 2020 at 10:44:04 AM UTC+3 P5music wrote:
>>>>
>>>>> I just can use this workaround, because otherwise it does not work. So 
>>>>> I have to call revalidate() in two differents steps.
>>>>> Said that, now the problem is the floating action button. As in the 
>>>>> second example there is an error issued.
>>>>> What's wrong?
>>>>> Regards
>>>>>
>>>>> Il giorno mercoledì 23 settembre 2020 alle 04:17:41 UTC+2 Shai Almog 
>>>>> ha scritto:
>>>>>
>>>>>> A single revalidate on the main form should work fine. Doing 
>>>>>> additional revalidates might cause them to disrupt one another. 
>>>>>> Notice that you might want to use the version of revalidate that 
>>>>>> plays nicely with animations.
>>>>>>
>>>>>> On Monday, September 21, 2020 at 11:51:20 AM UTC+3 P5music wrote:
>>>>>>
>>>>>>> It's very strange. I had to add a revalidate() also after removing 
>>>>>>> the containers.
>>>>>>> I do not know if it is intended behaviour but this code works (see 
>>>>>>> also below this code, there is the second part of this message about 
>>>>>>> fab 
>>>>>>> breaking it):
>>>>>>>
>>>>>>> private void setContainers()
>>>>>>> {
>>>>>>>
>>>>>>> mainEditingContainer.remove();
>>>>>>> itemListContainer.remove();
>>>>>>> //fab.remove();
>>>>>>>
>>>>>>>
>>>>>>> mainEditingContainer.revalidate();
>>>>>>> itemListContainer.revalidate();
>>>>>>> mainForm.revalidate();
>>>>>>>
>>>>>>> if (isPortrait() && (other conditions*)*)
>>>>>>> {
>>>>>>> new EditingForm(appData,myData,mainForm,editingContainer,other 
>>>>>>> Parameters).show();
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> if (isPortrait() && !(*other conditions*))
>>>>>>> {
>>>>>>>
>>>>>>> //mainForm.add(tl.createConstraint().heightPercentage(100).widthPercentage((int)(1*100)),fab.bindFabToContainer(itemListContainer));
>>>>>>>
>>>>>>> mainForm.add(tl.createConstraint().heightPercentage(100).widthPercentage((int)(1*100)),
>>>>>>> itemListContainer);
>>>>>>> }
>>>>>>>
>>>>>>> if(isTablet() && !isPortrait() ) {
>>>>>>>
>>>>>>> /*mainForm.add(tl.createConstraint().heightPercentage(100).widthPercentage((int)
>>>>>>>  
>>>>>>> (leftContainerRatio * 100)), fab.bindFabToContainer(itemListContainer))
>>>>>>> .add(mainEditingContainer);*/
>>>>>>> mainForm.add(tl.createConstraint().heightPercentage(100).widthPercentage((int)
>>>>>>>  
>>>>>>> (leftContainerRatio * 100)), itemListContainer)
>>>>>>> .add(mainEditingContainer);
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> mainEditingContainer.revalidate();
>>>>>>> itemListContainer.revalidate();
>>>>>>> mainForm.revalidate();
>>>>>>> }
>>>>>>> ------
>>>>>>>
>>>>>>> But now the fab problem is back. Indeed if I use this code
>>>>>>>
>>>>>>>
>>>>>>> private void setContainers()
>>>>>>> {
>>>>>>>
>>>>>>> mainEditingContainer.remove();
>>>>>>> itemListContainer.remove();
>>>>>>>
>>>>>>> if (!fabFirstTime) fab.remove();
>>>>>>>
>>>>>>>
>>>>>>> mainEditingContainer.revalidate();
>>>>>>> itemListContainer.revalidate();
>>>>>>> mainForm.revalidate();
>>>>>>>
>>>>>>> if (isPortrait() && (*conditions*)
>>>>>>> {
>>>>>>> new EditingForm(appData,myData,mainForm,editingContainer,other 
>>>>>>> parameters).show();
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> if (isPortrait() && !(*conditions*)
>>>>>>> {
>>>>>>>
>>>>>>> mainForm.add(tl.createConstraint().heightPercentage(100).widthPercentage((int)(1*100)),fab.bindFabToContainer(
>>>>>>> itemListContainer));
>>>>>>> }
>>>>>>>
>>>>>>> if(isTablet() && !isPortrait() ) {
>>>>>>>
>>>>>>> mainForm.add(tl.createConstraint().heightPercentage(100).widthPercentage((int)
>>>>>>>  
>>>>>>> (leftContainerRatio * 100)), fab.bindFabToContainer(
>>>>>>> itemListContainer)).add(mainEditingContainer);
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> mainEditingContainer.revalidate();
>>>>>>> itemListContainer.revalidate();
>>>>>>> mainForm.revalidate();
>>>>>>>
>>>>>>> if (fabFirstTime) fabFirstTime=false;
>>>>>>>
>>>>>>> }
>>>>>>>
>>>>>>> the user interface is not reconstructed again and no button is 
>>>>>>> visible.
>>>>>>> If I do not remove the fab I get the error 
>>>>>>> Component is already contained in Container: Container[x=0 y=0 
>>>>>>> width=1136 height=1920 name=null, layout = FlowLayout, scrollableX = 
>>>>>>> false, 
>>>>>>> scrollableY = false, components = [FloatingActionButton]]
>>>>>>> but I can see the button (in an wrong position because it is the old 
>>>>>>> x position I think, indeed orientation change has occurred).
>>>>>>> Thanks in advance
>>>>>>>
>>>>>>> Il giorno lunedì 21 settembre 2020 alle 04:35:07 UTC+2 Shai Almog ha 
>>>>>>> scritto:
>>>>>>>
>>>>>>>> I assumed incorrectly that you're adding a component that's already 
>>>>>>>> added. I think what's happening is that you removed the components 
>>>>>>>> before 
>>>>>>>> the re-layout then added them after. You would need to do either an 
>>>>>>>> animateLayout() or a revalidate() in this case. 
>>>>>>>>
>>>>>>>> On Sunday, September 20, 2020 at 3:16:12 PM UTC+3 P5music wrote:
>>>>>>>>
>>>>>>>>> Yeah, I just provided the error because you asked about, I just 
>>>>>>>>> would like to know why the user interface is not reconstructed after 
>>>>>>>>> orientation change. The provided mehod above is called both at 
>>>>>>>>> startup and 
>>>>>>>>> when an orientation change occurs, but in the latter case it fails in 
>>>>>>>>> recreating the user interface.
>>>>>>>>> Regards
>>>>>>>>>
>>>>>>>>> Il giorno domenica 20 settembre 2020 alle 07:18:05 UTC+2 Shai 
>>>>>>>>> Almog ha scritto:
>>>>>>>>>
>>>>>>>>>> OK I see this printout. Do you have CEF enabled?
>>>>>>>>>> Is there a browser component somewhere? 
>>>>>>>>>> This error should be meaningless and shouldn't impact the 
>>>>>>>>>> behavior of the app, it's related to the simulator.
>>>>>>>>>>
>>>>>>>>>> On Saturday, September 19, 2020 at 12:30:49 PM UTC+3 P5music 
>>>>>>>>>> wrote:
>>>>>>>>>>
>>>>>>>>>>> No back trace is available, just the text you have read in the 
>>>>>>>>>>> previous post.
>>>>>>>>>>> The fab is only added to mainForm and bound to masterContainer 
>>>>>>>>>>> (you can see in the code snippet above) but
>>>>>>>>>>> even if I do not have the fab at all in the application the 
>>>>>>>>>>> error is issued:
>>>>>>>>>>> Exception in thread "AWT-EventQueue-0" Exception in thread 
>>>>>>>>>>> "AWT-EventQueue-0" Exception in thread "AWT-EventQueue-0" Exception 
>>>>>>>>>>> in 
>>>>>>>>>>> thread "AWT-EventQueue-0" Failed to get location on 
>>>>>>>>>>> screen:component must 
>>>>>>>>>>> be showing on the screen to determine its location
>>>>>>>>>>>
>>>>>>>>>>> No line is highlighted in the source code because no Java 
>>>>>>>>>>> exception is issued.
>>>>>>>>>>>
>>>>>>>>>>> Il giorno sabato 19 settembre 2020 alle 07:41:29 UTC+2 Shai 
>>>>>>>>>>> Almog ha scritto:
>>>>>>>>>>>
>>>>>>>>>>>> Do you see the full stack trace? 
>>>>>>>>>>>> It should point at a specific line. What's added at that line?
>>>>>>>>>>>> That component should be removed.
>>>>>>>>>>>>
>>>>>>>>>>>> The FAB could be problematic since FAB is added in a unique 
>>>>>>>>>>>> way. Is it added to the form or an arbitrary container?
>>>>>>>>>>>>
>>>>>>>>>>>> On Friday, September 18, 2020 at 10:43:10 AM UTC+3 P5music 
>>>>>>>>>>>> wrote:
>>>>>>>>>>>>
>>>>>>>>>>>>> I only get 
>>>>>>>>>>>>> Exception in thread "AWT-EventQueue-0" Failed to get location 
>>>>>>>>>>>>> on screen:component must be showing on the screen to determine 
>>>>>>>>>>>>> its location
>>>>>>>>>>>>> Failed to get location on screen:component must be showing on 
>>>>>>>>>>>>> the screen to determine its location
>>>>>>>>>>>>> Indeed in my code the removal is performed:
>>>>>>>>>>>>> editingContainer.remove();
>>>>>>>>>>>>> itemListContainer.remove();
>>>>>>>>>>>>> fab.remove();
>>>>>>>>>>>>>
>>>>>>>>>>>>> So what could be the reason?
>>>>>>>>>>>>>
>>>>>>>>>>>>> Il giorno venerdì 18 settembre 2020 alle 06:15:30 UTC+2 Shai 
>>>>>>>>>>>>> Almog ha scritto:
>>>>>>>>>>>>>
>>>>>>>>>>>>>> Look at the console when debugging this in the simulator. You 
>>>>>>>>>>>>>> would probably see exceptions indicating you can't add a 
>>>>>>>>>>>>>> component to a 
>>>>>>>>>>>>>> Container if it's already added to some container (even if it's 
>>>>>>>>>>>>>> the same 
>>>>>>>>>>>>>> container). Yes, you need to adapt the code to handle that 
>>>>>>>>>>>>>> logic. 
>>>>>>>>>>>>>> Orientation change re-layout needs to be slightly different from 
>>>>>>>>>>>>>> first 
>>>>>>>>>>>>>> showing of the UI. I'd also recommend an animation on 
>>>>>>>>>>>>>> orientation change 
>>>>>>>>>>>>>> which is something we don't need/want for the first showing of 
>>>>>>>>>>>>>> the form.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> On Thursday, September 17, 2020 at 12:07:41 PM UTC+3 P5music 
>>>>>>>>>>>>>> wrote:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> I created a method like the one you can see below. It is 
>>>>>>>>>>>>>>> called at startup and it works. It is also called in the 
>>>>>>>>>>>>>>> orientation change 
>>>>>>>>>>>>>>> listener.
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> But when the orientation changes I see that the user 
>>>>>>>>>>>>>>> interface is cleaned up and no containers appear, that is, the 
>>>>>>>>>>>>>>> new rotated 
>>>>>>>>>>>>>>> interface does not appear, does not form, it is blank.
>>>>>>>>>>>>>>> If there is no call to the remove() methods I get errors 
>>>>>>>>>>>>>>> like "already added", and it is reasonable because the 
>>>>>>>>>>>>>>> containers don't get 
>>>>>>>>>>>>>>> removed.
>>>>>>>>>>>>>>> So the right version has to include the remove() calls. 
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Hence, I think the code is adding the right containers as it 
>>>>>>>>>>>>>>> happens at startup but the user interface is not shown. Why? 
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> private void setContainersAndForm()
>>>>>>>>>>>>>>> {
>>>>>>>>>>>>>>> editingContainer.remove();
>>>>>>>>>>>>>>> itemListContainer.remove();
>>>>>>>>>>>>>>> fab.remove();
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>  if (isPortrait() && (editingConditions))
>>>>>>>>>>>>>>>         {
>>>>>>>>>>>>>>>             new 
>>>>>>>>>>>>>>> EditingForm(appData,myData,mainForm,editingContainer,otherParameters).show();
>>>>>>>>>>>>>>>             setEditor();
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>         if (isPortrait() && !(editingConditions)
>>>>>>>>>>>>>>>         {
>>>>>>>>>>>>>>>             removeContainers();
>>>>>>>>>>>>>>>             
>>>>>>>>>>>>>>> mainForm.add(tl.createConstraint().heightPercentage(100).widthPercentage((int)(1*100)),fab.bindFabToContainer(masterContainer));
>>>>>>>>>>>>>>>         }
>>>>>>>>>>>>>>>         
>>>>>>>>>>>>>>>         if(isTablet() && !isPortrait() )
>>>>>>>>>>>>>>>         {
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>            removeContainers();
>>>>>>>>>>>>>>>             
>>>>>>>>>>>>>>> ((EditingContainer)editingContainer).setCallingForm(mainForm);
>>>>>>>>>>>>>>>             
>>>>>>>>>>>>>>> mainForm.add(tl.createConstraint().heightPercentage(100).widthPercentage((int)(leftContainerRatio*100)),fab.bindFabToContainer(masterContainer))
>>>>>>>>>>>>>>>                     .add( editingContainer);
>>>>>>>>>>>>>>>             if (editingConditions) setEditor();
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>         }
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> // also with these two lines
>>>>>>>>>>>>>>> //mainEditingContainer.revalidate();
>>>>>>>>>>>>>>> //itemListContainer.revalidate();
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> mainForm.revalidate();
>>>>>>>>>>>>>>> }
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Il giorno giovedì 17 settembre 2020 alle 06:15:49 UTC+2 Shai 
>>>>>>>>>>>>>>> Almog ha scritto:
>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> Look sat the code for kitchen sink. Notice we encapsulate 
>>>>>>>>>>>>>>>> each demo in a Demo class. Then in the main KitchenSink class 
>>>>>>>>>>>>>>>> we show 
>>>>>>>>>>>>>>>> either a Form or a Container based on the mode (tablet or 
>>>>>>>>>>>>>>>> phone). Yes it's 
>>>>>>>>>>>>>>>> pretty similar to this.
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>> On Wednesday, September 16, 2020 at 9:54:57 AM UTC+3 
>>>>>>>>>>>>>>>> P5music wrote:
>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> What you say seems to be merging the two things, like I am 
>>>>>>>>>>>>>>>>> already doing? Indeed my app is for tablet and phone, so my 
>>>>>>>>>>>>>>>>> question was 
>>>>>>>>>>>>>>>>> just about the management of these two scenarios, and the 
>>>>>>>>>>>>>>>>> orientation too.
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Is this what you are advicing?
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>   if (isPortrait() && (editingConditions))
>>>>>>>>>>>>>>>>>         {
>>>>>>>>>>>>>>>>>             new 
>>>>>>>>>>>>>>>>> EditingForm(appData,myData,mainForm,editingContainer,otherParameters).show();
>>>>>>>>>>>>>>>>>             setEditor();
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>         if (isPortrait() && !(editingConditions)
>>>>>>>>>>>>>>>>>         {
>>>>>>>>>>>>>>>>>             removeContainers();
>>>>>>>>>>>>>>>>>             
>>>>>>>>>>>>>>>>> mainForm.add(tl.createConstraint().heightPercentage(100).widthPercentage((int)(1*100)),fab.bindFabToContainer(masterContainer));
>>>>>>>>>>>>>>>>>         }
>>>>>>>>>>>>>>>>>         
>>>>>>>>>>>>>>>>>         if(isTablet() && !isPortrait() )
>>>>>>>>>>>>>>>>>         {
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>            removeContainers();
>>>>>>>>>>>>>>>>>             
>>>>>>>>>>>>>>>>> ((EditingContainer)editingContainer).setCallingForm(mainForm);
>>>>>>>>>>>>>>>>>             
>>>>>>>>>>>>>>>>> mainForm.add(tl.createConstraint().heightPercentage(100).widthPercentage((int)(leftContainerRatio*100)),fab.bindFabToContainer(masterContainer))
>>>>>>>>>>>>>>>>>                     .add( editingContainer);
>>>>>>>>>>>>>>>>>             if (editingConditions) setEditor();
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>         }
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>> Thanks in advance
>>>>>>>>>>>>>>>>> Il giorno mercoledì 16 settembre 2020 alle 04:40:29 UTC+2 
>>>>>>>>>>>>>>>>> Shai Almog ha scritto:
>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> My advice is to use Containers for everything but have 
>>>>>>>>>>>>>>>>>> global navigation logic. So when you need to show a UI 
>>>>>>>>>>>>>>>>>> element you can 
>>>>>>>>>>>>>>>>>> invoke that single place that decides.
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> If this is on a phone you would create a Form add the 
>>>>>>>>>>>>>>>>>> container to it and set its title etc. then show. 
>>>>>>>>>>>>>>>>>> If this is a tablet you would replace the last 
>>>>>>>>>>>>>>>>>> container.and update the subtitle in the UI
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>> On Tuesday, September 15, 2020 at 10:39:40 AM UTC+3 
>>>>>>>>>>>>>>>>>> P5music wrote:
>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> So your advice is to use one form for the master/detai 
>>>>>>>>>>>>>>>>>>> in every configuration, just managing the container, with 
>>>>>>>>>>>>>>>>>>> the override of 
>>>>>>>>>>>>>>>>>>> the back button and using the back command to manage the 
>>>>>>>>>>>>>>>>>>> container inside 
>>>>>>>>>>>>>>>>>>> the form.
>>>>>>>>>>>>>>>>>>> So I have not to do this:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> if (isPortrait() && (*conditionsAreTrue*))
>>>>>>>>>>>>>>>>>>> {
>>>>>>>>>>>>>>>>>>> new 
>>>>>>>>>>>>>>>>>>> EditingForm(appData,myData,mainForm,editingContainer,other 
>>>>>>>>>>>>>>>>>>> parameters).show();
>>>>>>>>>>>>>>>>>>> }
>>>>>>>>>>>>>>>>>>> (this is what I am trying to do now)
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> the form will be just used when a new screen has to be 
>>>>>>>>>>>>>>>>>>> presented, like the help form.
>>>>>>>>>>>>>>>>>>> Is it right?
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>> Il giorno martedì 15 settembre 2020 alle 03:50:41 UTC+2 
>>>>>>>>>>>>>>>>>>> Shai Almog ha scritto:
>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> You can use setBackCommand and override the hardware 
>>>>>>>>>>>>>>>>>>>> back command to have any functionality you want. It can 
>>>>>>>>>>>>>>>>>>>> just replace 
>>>>>>>>>>>>>>>>>>>> containers and then eventually move a form. You obviously 
>>>>>>>>>>>>>>>>>>>> need to keep 
>>>>>>>>>>>>>>>>>>>> track of everything which isn't simple. 
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>> On Tuesday, September 15, 2020 at 12:48:15 AM UTC+3 
>>>>>>>>>>>>>>>>>>>> P5music wrote:
>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> My app needs to manage cases where a back navigation 
>>>>>>>>>>>>>>>>>>>>> occurs but not toward the original master/detail form, 
>>>>>>>>>>>>>>>>>>>>> indeed to a 
>>>>>>>>>>>>>>>>>>>>> different orientation of the editing view itself.
>>>>>>>>>>>>>>>>>>>>> For example the editing view in portrait mode is 
>>>>>>>>>>>>>>>>>>>>> fullscreen and can undergo a device rotation: in that 
>>>>>>>>>>>>>>>>>>>>> case the landscape 
>>>>>>>>>>>>>>>>>>>>> mode is the new full screen mode for the editing view, 
>>>>>>>>>>>>>>>>>>>>> while master/detail 
>>>>>>>>>>>>>>>>>>>>> is reached back only when further back navigation occurs 
>>>>>>>>>>>>>>>>>>>>> when the user tap 
>>>>>>>>>>>>>>>>>>>>> the back button.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> So I thought this has to be accompished with a new 
>>>>>>>>>>>>>>>>>>>>> form: the editing form, to which the editing container is 
>>>>>>>>>>>>>>>>>>>>> added, because I 
>>>>>>>>>>>>>>>>>>>>> think it is the right way to manage back navigation, that 
>>>>>>>>>>>>>>>>>>>>> is. navigation is 
>>>>>>>>>>>>>>>>>>>>> between forms, back and forth.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> I ask whether the editing container has to be 
>>>>>>>>>>>>>>>>>>>>> recreated, or it can removed from the master/detail form 
>>>>>>>>>>>>>>>>>>>>> and then added to 
>>>>>>>>>>>>>>>>>>>>> the editing form.
>>>>>>>>>>>>>>>>>>>>> Thanks
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>> Il giorno domenica 13 settembre 2020 alle 03:43:59 
>>>>>>>>>>>>>>>>>>>>> UTC+2 Shai Almog ha scritto:
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> I mean having containers side by side in one form 
>>>>>>>>>>>>>>>>>>>>>> (see the kitchen sink where we do just that). 
>>>>>>>>>>>>>>>>>>>>>> I don''t recommend having a form embedded in a form. 
>>>>>>>>>>>>>>>>>>>>>> Forms are very "heavy" and things sometimes fail when 
>>>>>>>>>>>>>>>>>>>>>> you add a form inside 
>>>>>>>>>>>>>>>>>>>>>> another form. Historically this was prohibited (we'd 
>>>>>>>>>>>>>>>>>>>>>> throw an exception in 
>>>>>>>>>>>>>>>>>>>>>> that case) but some use cases for embedding a form do 
>>>>>>>>>>>>>>>>>>>>>> exist. I'd still 
>>>>>>>>>>>>>>>>>>>>>> avoid it when possible.
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>> On Saturday, September 12, 2020 at 12:31:31 PM UTC+3 
>>>>>>>>>>>>>>>>>>>>>> P5music wrote:
>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> Thanks, do you mean having two forms side by side, 
>>>>>>>>>>>>>>>>>>>>>>> that expands when in portrait mode going full screen 
>>>>>>>>>>>>>>>>>>>>>>> singularly, or you 
>>>>>>>>>>>>>>>>>>>>>>> mean that I open another form on top of the main form?
>>>>>>>>>>>>>>>>>>>>>>> I started creating an editing container that can be 
>>>>>>>>>>>>>>>>>>>>>>> added to the main form or to the editing form, so I 
>>>>>>>>>>>>>>>>>>>>>>> remove all and then add 
>>>>>>>>>>>>>>>>>>>>>>> again. Is this the right way to do that?
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>> Il giorno sabato 12 settembre 2020 alle 07:04:13 
>>>>>>>>>>>>>>>>>>>>>>> UTC+2 Shai Almog ha scritto:
>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>> In some cases you need two forms and in some cases 
>>>>>>>>>>>>>>>>>>>>>>>> two containers. 
>>>>>>>>>>>>>>>>>>>>>>>> The trick for doing this is to work with two 
>>>>>>>>>>>>>>>>>>>>>>>> containers and when necessary wrap them in a Form to 
>>>>>>>>>>>>>>>>>>>>>>>> enable the two page 
>>>>>>>>>>>>>>>>>>>>>>>> master detail.
>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>> On Friday, September 11, 2020 at 3:41:56 PM UTC+3 
>>>>>>>>>>>>>>>>>>>>>>>> P5music wrote:
>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>> My Codename app has master/detail layout.
>>>>>>>>>>>>>>>>>>>>>>>>> According to orientation the detail (editing) or 
>>>>>>>>>>>>>>>>>>>>>>>>> the master can stay full screen.
>>>>>>>>>>>>>>>>>>>>>>>>> I have to handle many orientation and editing 
>>>>>>>>>>>>>>>>>>>>>>>>> status configurations, so sometimes the editing 
>>>>>>>>>>>>>>>>>>>>>>>>> screen will be displayed 
>>>>>>>>>>>>>>>>>>>>>>>>> out of the master screen in portrait orientation.
>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>> The back navigation (button and other gestures) 
>>>>>>>>>>>>>>>>>>>>>>>>> has to be managed in both cases.
>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>> I am not sure if I have to use a main form and two 
>>>>>>>>>>>>>>>>>>>>>>>>> containers, or instead two forms, that is, also an 
>>>>>>>>>>>>>>>>>>>>>>>>> EditingForm with the 
>>>>>>>>>>>>>>>>>>>>>>>>> EditingContainer inside.
>>>>>>>>>>>>>>>>>>>>>>>>> Thanks in advance
>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>>>>>

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