How to get caller form from a class, which is a caller of another form?

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Posted on by Bhagyashree Dave

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Hi all,

I have to put a validation on a button's click method, so here is the issue I'm facing.

The button is on "VendPaymProposalEdit" form(child form), let's call it form A. It's caller is a class, which is "CustVendPaymProposalEditForm". And the class opens when I click on a button on the form "LedgerJournalTransVendPaym"(parent form), let's call is form B.

Here, form B is parent and form A is a child form.

Form B(Parent) -> Class -> Form A(Child)

So I need dataSource of Form B on Form A. But there is a class in between, which becomes the caller for Form A.

I hope I didn't confuse you, but is this possible to get datasource/record of caller form form B?

nmaenpaa , can you help me with this?

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Alex VN 1,994 on at

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Hi,

Can you try to use:

FormRun callerForm = element.args().caller();

To see if this will help to return the callerForm or not? Sorry I don't have machine access now.

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Bhagyashree Dave 133 on at

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Hi,

Yes, I tried that, but it gets the class which is in between of both the forms.

I don't get the parent form.

Do you know any other way to get the parent form from the class??

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Sangram Shinde 2,114 on at

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Hi Bhagyashree,

It looks you are trying to add validation on 'Create payments' button from vendor payment proposal form.

Can you elaborate a bit about requirement, what validation you need to add on button click.

Regards,

Sangram

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Bhagyashree Dave 133 on at

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Hi Sangram,

Yes I need to add validation on "Create payments" button on Vendor payment proposal form.

And the validation is based on it's caller form Vendor Payment's "Date" field.

So, I need "Date" field of Vendor Payments - LedgerJournalTransVendPaym on Vendor payment proposal - VendPaymProposalEdit form. But I'm getting a class(CustVendPaymProposalEditForm) in between which is called by an action menu item(Create payment proposal - VendPaymProposalCreate).

So what should I do in this case? any suggestions?

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GirishS 27,827 Moderator on at

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Hi Bhagyashree,

Try to pass the called object name of the class using parmObject() method.

Thanks,

Girish S

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nmaenpaa 101,162 Moderator on at

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Here's a general answer to the question.
It doesn't matter if you need to get the caller, or the "caller's caller", or objects that are even further away. The mechanics is always exactly the same. You just have to move step by step.

1. If you're standing on a form, you can get the caller via element.args().caller()

2. Once you have the caller, and you're now "standing" on it, and you can get the caller of that class as long as this information is available in that class. Perhaps you can get it from _args of the main method, if the class is launched via the main method. Or perhaps you can get it by some other means. Sometimes you can't get it, if the class is called in a way that that doesn't send the caller information. In this case you might need to adjust the class and it's caller so that the caller information will be passed But basically step 1 (getting caller of the form) is not relevant here at all. Finding out the caller of this class is entirely separate question and challenge.

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