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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Form Part - Callbacks
Microsoft Dynamics AX (Archived)

Form Part - Callbacks

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Posted on by Jonathan Halland 11,310

Hi All.

I am creating a form part that can be used by various forms with different datasources. My form part does not contain a datasource, but needs to update static fields when a new record on the main form is selected. 

What callbacks or other features can I use to accomplish this? Reverse engineering other form parts reveals that most use a datasource link, but this is not possible in my case.

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  • Martin Dráb Profile Picture
    Martin Dráb 236,974 Most Valuable Professional on at
    RE: Form Part - Callbacks

    You won't get any notification if you don't have any dynamic link between those two forms. You would have to add a piece of code to each form to notify the form part.

  • Verified answer
    André Arnaud de Calavon Profile Picture
    André Arnaud de Cal... 300,195 Super User 2025 Season 2 on at
    RE: Form Part - Callbacks

    Hi Jonathan,

    There is an example for updating the part using x++ statements on the form SysSecRoleAssignOM. Perhaps this will help you.

  • Verified answer
    Jonathan Halland Profile Picture
    Jonathan Halland 11,310 on at
    RE: Form Part - Callbacks

    Hi Andre. That is exactly what I was looking for thanks. Just for completeness here is the full solution

    1. Create your form and form part

    2. Add your form part to your main form.

    3. Add an object reference in your main form's class declaration e.g. "Object part"

    4. Create a method on your main form e.g. "registerForChange(Object _part); with the following code:

    public boolean registerForChange(Object _part)
{
    part = _part;
    
    return true;
}

    5. On your form parts init method. Call this method.

    Object caller;

caller = args.caller();
if (caller)
{
    caller.registerForChange(this)
}

    6. On your form part create an doRefresh method. E.G. 
    public void doRefresh(Common _record)
{
    //Do custom form code.
}
    7. Finally on the main form, whenever you want you main form to be updated call part.doRefresh(myRecord); This would normally be in the active method on the main form's main datasource.

    Update: I wrote a slightly more extensive post on my findings: http://www.exploreax.com/blog/blog/2014/12/01/form-parts-creating-form-method-callbacks/


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