问题
if you create a new dataset, mandatory fields which are not set yet are marked with a wiggly red line.
it seems, that only string-values ( or several fields, but at least no integers ) are marked this way.
if integer-references are used ( 1-based ), the regarding fields are filled with 0 per default which causes the red line to disappear.
is there any way to leave those fields empty per default?
thanks for hints!
回答1:
For integer and real fields you could set the ShowZero property to No (on the control or extended data type). Then zero values will appear with a red wave line.
For new base enums leave a blank zero enum value (by convention name it None).
回答2:
Dynamics Ax does not have an "null" concept for fields. It uses some "zero" values for all data types - so you need to use some other NoYes field to express what you want if 0 is not empty
来源：https://stackoverflow.com/questions/1420135/mark-mandatory-fields-on-form-if-not-filled-with-valid-value