Error "Wrong type of argument for conversion function" occured with array field

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Posted on by YQ-12070237-0

Hi experts,

I want to use array field (extends from HcmWorkerRecId), but error is found when form datasource appending new record.

The followings are the steps:

1. Create a EDT A (Extends = HcmWorkerRecId, Reference Table = HcmWorker, new table refereneces and 4 array elements are added)

2. Drag this EDT to table

3. Table is set as form datasource, and drag related field to grid, 4 reference group controls are added.

While new record is appended, error is found when code Class\FormDataUtil\getRefRecIdFieldValue executing.

Can anyone tell me how to resolve this problem?

Thanks in advance.

Bernard

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André Arnaud de Cal... 306,887 Super User 2026 Season 2 on at

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Hi,

When you are using the Common object, the outcome of the field value is an anytype instead of an integer64. You can change your coding in the following way to have the proper conversion:

RefRecId refId = any2Int64(_record.(_fieldId));

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YQ-12070237-0 57 on at

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Thank you Andre for your reply. However, the method getRefIdFieldValue is the code of module plateform. I know I can extend it in my module, but does it mean that this is a bug for basic code?

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André Arnaud de Cal... 306,887 Super User 2026 Season 2 on at

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Hi Bernard,

Apologies, I misread your question and thought you shared custom coding. If you are using the debugger, doe the parameter _fieldId have a value?
Do you get the same error in case you are not using the arrays on this field, but one or e.g. 4 distinct fields?

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YQ-12070237-0 57 on at

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Hi Andre,

The parameter _fieldId is 1, and it is the array field number. If I remove it, and add 4 fields instead, it woks fine.

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Anton Venter 21,173 Super User 2026 Season 2 on at

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Hello,

The field IDs of the array fields work a little different. You have to use the extended field ID methods, see link below.

https://learn.microsoft.com/it-it/previous-versions/dynamicsax-2012/developer/extended-field-ids

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André Arnaud de Cal... 306,887 Super User 2026 Season 2 on at

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Hi Bernard,

Anton explained that the field IDs of array fields are implemented differently. I guess the reference fields with array-type fields are not supported in the standard coding. If the 4 distinct fields are working, I guess this should be your solution.

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YQ-12070237-0 57 on at

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Hi Andre, Anton

I have implement it with several fields instead of using array field.

Thanks both of you anyway.

Bernard

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