Extension methods for FormControl and Form

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Hi,

I created a form extension and added a new button then I created the following class to be able to override clicked method

[ExtensionOf(formControlStr(CaseDetail,AAbtnNewCase))]
final class CaseDetailAA_Extension
{

public void clicked()
{
//logic
}

name of class is CaseDetailAA_Extension

now if I want to add a new method for the form caseDetail which is AACreateRecord -- similar to the standard createRecord method in this class and call it inside the clicked method, shall I add this new method in this class I created?

[ExtensionOf(formControlStr(CaseDetail,AAbtnNewCase))]
final class CaseDetailAA_Extension
{

public void clicked()
{
this.aaCreateRecord();
}

public void aaCreateRecord()

{

//logic
}

OR

shall I create a new class with [ExtensionOf(formlStr(CaseDetail))] and add aaCreateRecord() in it? if that's the case then this class needs to be CaseDetailAA_Extension. Then what should I rename the extension class for the formControl? what's the best practice? would this work CaseDetailFormControlAA_Extension?

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Martin Dráb 239,031 Most Valuable Professional on at

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You have an erxtension of a form control. If you add a method there, it'll be a method of the form control, not of the form that contains the control. You should decide what you actually want.

If having it in AAbtnNewCase class is sufficient, just do it - then you don't need an extra class with the form extension.

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Hi Martin,

but because the standard method createRecord is for the form, so I thought I should do it on form level as well.

So what you are saying if I'm only going to call it in the form control method then I can keep the method in the control class, correct?

but let's say I want to create two classes, is this what should I call each class as a best practice?
CaseDetailAA_Extension -- for the form , or shall I call it CaseDetailFormAA_Extension?
CaseDetailFormControlAA_Extension -- for the control

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Martin Dráb 239,031 Most Valuable Professional on at

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Where the method should be depends on what it does and how it's supposed to be used.

As far as I know, there are no best practices about how the names should be formed. I find including the type in extensions names useful, because there often are multiple elements with the same name (e.g. table and form). Also, I usually see company prefixes (AACaseDetail...) instead of suffixes.

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Hi Martin,

I created the aaCreateRecord in the form extension, but I can't call it from the form control extension

community.dynamics.com/.../how-to-call-a-method-in-a-form-extension-class-from-a-form-control-extension-class

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Martin Dráb 239,031 Most Valuable Professional on at

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Is there anything more that you want to know about the topic of this thread (whether you should add the method to the form control extension or a form extension)? If not, please verify the answer.

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Hi Martin,

no thank you but a comment on your last point "Also, I usually see company prefixes (AACaseDetail...) instead of suffixes."

The prefix still won't help if the there table and form are named the same. so i think a suffix with the work Form or table might help more.

unless you were talking about sth else that i can name the class AASth_Extension or SthAA_Extension

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Martin Dráb 239,031 Most Valuable Professional on at

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You misunderstood my reply. The topic of type is covered by the previous sentence ("I find including the type in extensions names useful, because there often are multiple elements with the same name (e.g. table and form").

The other senstence ("Also, I usually see company prefixes (AACaseDetail...) instead of suffixes.") is about a different topic, but related to your question about best practices.

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