Using pre/post event handlers on modifiedField() method of a table in case of customization

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Posted on by Nishant2408

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Hi,

I have some customize code in modifiedField(FieldId _fieldId) method of an existing table. I am trying to move all the customization from the method. Is it feasible using pre/post event handlers for modifiedField() method?

And if so, how can I get the fieldId in my event handler method, which we take as an argument in modifiedField()?

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Martin Dráb 237,882 Most Valuable Professional on at

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No, a better approach it using modeled events. Expand Events node of the table and subscribe to onModifyingField or onModifiedField event.

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Nishant2408 705 on at

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Okay Martin.

Now how can I get the value of fieldId in onModifiedField event?

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Mea_ 60,284 on at

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Hey Nishant Srivastava ,

When you will create event handler it will accept 2 parameter

(Common _sender, DataEventArgs _e)

Where _sender is a record and _e could be cast to ModifyFieldEventArgs, like

ModifyFieldEventArgs args = _e as ModifyFieldEventArgs;

Than you can get filedId by using next code:

args.parmFieldId()

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Martin Dráb 237,882 Most Valuable Professional on at

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You get such information in event arguments, you just have to cast the general type to the specific one.

ModifyFieldEventArgs eventArgs = e; eventArgs.parmFieldId();

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Thanks for posting this solutions, Martin. This was exactly what I needed to have modifiedField functionality on fields I added to a SalesLine extension.

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nmaenpaa 101,160 Moderator on at

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Since the previous answers are from year 2016, they are partially outdated. Nowadays it's possible (and easier) to use Chain of Command instead of event handlers. But of course event handlers do still work, and there are scenarios where you need to use them.

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