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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Loop through all field...
Microsoft Dynamics AX (Archived)

Loop through all fields and compare records

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Posted on by Community Member

Hi,

Can anyone teach me how to loop in all fields? I have a table with a Emplid (not unique). The table store the history changes. what i want is when the field of the current record is empty. The empty field will be fill by the previous record. And those field of the current record that is not empty, will not be overwritten by the previous record.

Illustration:

Tprev: F1 F2 F3 F4 F5....

Tcurrent: _ f2 _  _   f5...

Tcurrent display =  F1 f2 F3 F4 f5

This Tprev and Tcurrent is the same Emplid and differ only in RecordSequence#. 

i already get their record position to determine which is the prev and the current record.

 

thanks,

 

 

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  • Verified answer
    Martin Dráb Profile Picture
    Martin Dráb 237,882 Most Valuable Professional on at

    The following code illustrates how to get values from current record. The strange code "tCurrent.(fieldId)" is equivalent to tCurrent.SomeField, but using field ID. 

    SysDictTable dictTable = new SysDictTable(tCurrent.TableId);
SysDictField dictField;
FieldId fieldId = dictTable.fieldNext(0);

while (fieldId)
{
    dictField = dictTable.fieldObject(fieldId);
    if (dictField.isSql() && !dictField.isSystem())
    {
        info(strFmt("%1: %2", dictField.name(), tCurrent.(fieldId)));
    }
    fieldId = dictTable.fieldNext(fieldId);
}

    BTW are you aware of that your design doesn't support removing of field values?

  • Community Member Profile Picture
    Community Member on at

    Hi Mar,

    Yeah.I dont want to remove the value but instead copying the value of fields of the previous record to the null fields of current records.

    thanks,

  • Martin Dráb Profile Picture
    Martin Dráb 237,882 Most Valuable Professional on at

    I mean: when user sets a value of a numeric field (for example, the same is true for all types) from 1 to 0, "1" will be still shown because the new value is considered "empty". AX doesn't support NULL values in database.

  • Community Member Profile Picture
    Community Member on at

    Error Occur while using tCurrent.(fieldId) at line number 10

  • Martin Dráb Profile Picture
    Martin Dráb 237,882 Most Valuable Professional on at

    It would help if you at least told us what error you got. We can't read your mind.

  • Community Member Profile Picture
    Community Member on at

    I have also attach error photo but it seems its not uploaded by the way I resolve my issue.

    Thanks for your concern.

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