Passing Values between 2 Forms

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Posted on by Abdallah Zein Al Abdin

1,385

Hello Everyone,

If we have 2 forms FormA & FormB and we are calling FormB from FormA using MenuItemButton, at the same time we need to pass value to FormB from FormA how can we accomplish this? What I need is to create public variable on FormB and update the value of that variable from FormA or if there is another way this is great.

I know we have examples on how to pass values between 2 forms using X++ using Args and FormRun but the issue here is I am using MenuItemButton to display a form (No coding)

Thanks

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Ivan (Vanya) Kashperuk on at

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Well, you can always get access to FormA from FormB, using args.caller(). You can access its datasources, and call its methods. Now all you need is to create a method on FormA, that will return your value, and access it through element.args().caller() from FormB.

This way you won't have to change any code for calling FormB (just use the menu button).

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Abdallah Zein Al Abdin 1,385 on at

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Thanks a million Ivan it worked. I created accessor method to retrieve the value I want on FormA and Called it from FormB

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mstrillian 282 on at

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I created accessor methods on FormA and could not access them when FormB was called. Can you give some more information here? For example, what, if anything did you set equal to your element.args().caller() method in the init of FormB?

When I try to do element.args().caller().parmData(), the parmData() is not accessible. I made it a public method. What am I doing wrong?

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Ivan (Vanya) Kashperuk on at

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You should first assign the element.args().caller() to a variable of type object;

that way you will avoid the compile-time validation for method existense.

object formRunCaller;

;

formRunCaller = element.args().caller();

formRunCaller.parmData()

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Abdallah Zein Al Abdin 1,385 on at

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Thanks Ivan, you answered the question I want to add a little thing here. If you created a method on FormA called MethodA() and you need to call it from FormB you can access it this way:
object formRunCaller;

;

formRunCaller = element.args().caller();

formRunCaller.MethodA()

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mstrillian 282 on at

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Thanks! This is great to know how to access a method on your parent form. My real issue was that I wanted access to the datasource from the previous form. I thought I had to create a parm method on the previous form to return the value of those fields to me. This is what I ended up doing though:

In the init() method of FormB, I put the following code -

vendTable    vendTableFromForm;
;

super();

if(element.args().record())
    {
        vendTableFromForm = element.args().record();
        FormBFilteringField = vendTableFromForm.FormAField;
    }

It seems to be working. Let me know if there's any reason you don't think that would work or if there is a "better" way to do this.

Thanks for your help!

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Jamila ALI 5 on at

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Hi,

It works when you have two forms, but what about lookup form? I mean if you call a lookup form from a form with a "lookup" method on the form data source field.

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Johnny 6,478 on at

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Hello,

I have done the same as discussed.

I have added one menuitembuton in salestable form and in the destination form's initValue method I'm doing :

formRunCaller = element.args().caller(); if (formRunCaller.name() == formStr(SalesTable)) { ..... }

If I open the form from salestable it is working properly but if I open it from AOT it says:

"Object object not initialised" which comes from the "if" line

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Martin Dráb 237,878 Most Valuable Professional on at

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If you open the form from AOT, there is no caller and the formRunCaller variable in null. Then you try to call a method (name()), which obviously must fail on null.

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Suggested answer

Mehul Thacker 165 on at

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Hi Abdallah,

According to me there is only option left if you don't wan to pass value by coding, which is to use following three menu item properties if it fits your requirement. To pass different values you can create different menu items.

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