How add a method extension in an extension form

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Posted on by Foxsor

160

Hello,

I would like to create an extension form method on an extension form (ProjStatistic.Extension) in the form's methods in order to use it on a standard method updateButton with a PostHandlerFor.

Is it possible to do this?, or the the syntax does not exist for creating an extension method in form?

/// <summary>
/// PostHandlerFor method of updateButton
/// </summary>
/// <param name="args"></param>
[PostHandlerFor(formStr(ProjStatistic), formMethodStr(ProjStatistic, updateButton))]
public static void ProjStatistic_Post_updateButton(XppPrePostArgs args)
{

// element.MySpecificExtensionMethod // How use an form extension method from the extension form?

}

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Martin Dráb 237,002 Most Valuable Professional on at

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RE: How add a method extension in an extension form

To seemingly add new methods, use class extensions. Yes, it works with forms as well, you'll just use [ExtensionOf(formStr(ProjStatistic))]. You can see an example in Code behind extension forms: How to add state variables and override methods without overlayering.

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Foxsor 160 on at

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RE: How add a method extension in an extension form

Thank Martin.

I could not use variables in form extension:

[ExtensionOf( formstr( ProjStatistic )) ]

final class ProjStatistic_Extension

{

public real xxxCalc;

public static void xxxlCalc)

{

xxxCalc = 10;

}

/// <summary>

///

/// </summary>

/// <param name="args"></param>

[PostHandlerFor(formStr(ProjStatistic), formMethodStr(ProjStatistic, updateButton))]

public static void ProjStatistic_Post_updateButton(XppPrePostArgs args)

{

}

I think my AX version (Platform1) did not support variables in form extension:

"Fields on an extension class is only supported if the ExtensionOf attribute is used on a class."

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Martin Dráb 237,002 Most Valuable Professional on at

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RE: How add a method extension in an extension form

It's possible; I don't gave the one-year-old version to test it.

Note that the support for Platform Update 1 ends in less than three weeks, so you should upgrade very soon anyway.

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Foxsor 160 on at

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RE: How add a method extension in an extension form

Thank Martin.

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KevinGroves 30 on at

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RE: How add a method extension in an extension form

Make the post_updateButton method none static and it should work.

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Community Member on at

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RE: How add a method extension in an extension form

Hi Foxsor, Can you resolve the problem? I have a similar problem, but I can not solve it, in case you could share your solution, I would appreciate it, Regards

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Martin Dráb 237,002 Most Valuable Professional on at

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RE: How add a method extension in an extension form

You should rather create a new thread and explain your specific problem.

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Giridhar1617 on at

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RE: How add a method extension in an extension form

Hi Martin,

I have added a new method in the form using class extension. In the place where i am calling it, I would like to have a check if the formHasMethod and call the method using formRun object. Is it possible? When I try this, it says method does not exist on the form, actually it is existed on the underlying class extension. Can you please help me out how to solve this scenario?

Regards,

Giridhar

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