[Solved][Base] Access a SubSubForm with getByIndex() method

[pinco pallo]

Hi everyone,
i saw that i can access a SubForm using this code:

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oForm=thisComponent.drawpage.forms.getByIndex(0).getByIndex(0)

but it doesn't work for the next SubSubForm level:

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oForm=thisComponent.drawpage.forms.getByIndex(0).getByIndex(0).getByIndex(0)

while it works well:

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oForm=thisComponent.drawpage.forms.getByIndex(0).getByIndex(0).getByName("SubSubFormName")

Is there a limitation on the use of the getByIndex() method?
Thank you in advance.

[Mr.Dandy]

Hello,

Save our time and provide this ODB.
We can have a look at your problem.

[pinco pallo]

Hello, here is my example where macros Print1, Print2, Print4 works well. Macro Print3 doesn't work and show error message.
Thank you.

[JeJe]

You can investigate these things easily with MRI, doing so

oForm = oDrawpage.forms.getByIndex(0).getByIndex(0).getByIndex(0)
mri oForm

oForm looks to be the label "lblId"

[pinco pallo]

Sorry, I doesn't understand. I don't know MRI (but I have installed it in my Libo).

[JeJe]

You load the MRI eg with
Globalscope.BasicLibraries.LoadLibrary( "MRILib" )

You can then inspect any object by typing

MRI object

Doing that you can see what you think is a form at index 0, isn't.

(To help people answer your query, if you're using Libo you should have that instead of/as well as "AOO 4.1.3 on Mac OSX" for you app/os)

[JeJe]

All you have is the wrong index - its 6 for the form you want

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Sub Print3 ' it doesn't work 
	Dim oDoc As Object
	Dim oDrawpage As Object
	Dim oForm As Object
	Dim sName As string
	oDoc = thisComponent
	oDrawpage = oDoc.drawpage
	oForm = oDrawpage.forms.getByIndex(0).getByIndex(0).getByIndex(6)
	sName = oForm.getByName("State").text
	print sName
End Sub

[Villeroy]

[Tutorial] Introduction into object inspection with MRI
Do NOT access form elements by index unless you are very sure that you never change anything on these forms.
Instead of pulling forms from the DrawPage you could also follow an event driven programming approach. Every form event passes over some kind of event struct where the Source element refers to the calling object.

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Sub ControlEvent(oEv)
oCallingThing = oEv.Source
oForm = oCallingThing.getParent()
REM in rare cases where the caller is embedded in a table grid:
oForm = oCallingThing.Parent.getParent()

Sub SubFormEvent(oEv)
oSubForm = oEv.Source
oForm = oEv.getParent()

Sub FormEvent(oEv)
oForm = oEv.Source

This way you are right in the middle of where the music plays without crossing the entire hierarchy

[pinco pallo]

Thanks @JeJe e @Villeroy, I understand that the getByIndex () method does not give fixed results as I thought.
I also discovered a new way: I will study MRI to learn how to use it well. Thanks again !!