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useEnumValues property

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Posted on by junior AX

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Hi,

i noticed that some enums have UseEnumValues property set to yes/

1. what does this property do?

2. How can i enable this property when creating a new base enum? i can't find a way to enable it.

3. let's say i have this Enum called Enum1 (where the property is set to false) and it has these three items: start,Middle,Finish

if this enum was used in AOT query and i wanted to do a range where status is less than finish

do i put in the range: <2 assuming start value is 0, middle is 1 and finish is 2 and is the syntax correct?

4. let's say i have this Enum called Enum3 (where the property is set to true) and it has these 4 items: start,Middle,Finish,Done

starts has enumvalue 3, Middle has Enum value 7 , Finish has enum value 10 and Done has enum value 20

if this enum was used in AOT query and i wanted to do a range where status is less than finish

do i put in the range: <10 ?

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Blue Wang on at

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HI Junior,

When you create a new BaseEnum, when you select IsExtensible as false, then UseEnumValues is Yes, otherwise it is No.

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junior AX 1,552 on at

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Hi Blue,

Thank you. But why would i want to put enum values by myself and can u help me in answering Q3 and Q4?

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vinitgoyal2005 6,332 on at

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Hi,

1 and 2 are answered.

For 3: Yes you are correct, you need to put <2 and if you want a specific range then you can also use 1,2 (comma separated values).

For4 : Also correct, you need to use <10 but there is no need to do this.

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Blue Wang on at

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Hi Junior，

When you use extensible enums in code(UseEnumValues=No), remember that extensible enums can't be used in comparisons.

community.dynamics.com/.../d365foe-issue-with-enums-that-have-use-enum-value-property-set-to-no

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Jeremy_Mounet 170 on at

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Hi

In my knowledge, when you extend a base enum, D365FO is managing the Enum Value assignation dynamically for new elements (done on SQL during synchronization in the EnumValueTable I guess, but not sure). That's why you can't use enum value if you use extension on the Base Enum.

For me (but this is just my opinion), I prefer to use Enum code such as "Status::Complete" rather Enum Values, because the code will be extensible (if IsExtensible is set to yes) and more clear. Value using (hardcoded finally) is not a good practice in my knowledge, even on queries, because you could use multiple ranges to cover your requirement with a OR operator for instance.

In your example 3, you could use a "!= Enum3::Done" to have all the other status.

in your example 4, you could use value == Enum3::Start || value == Enum3::Middle as range.

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junior AX 1,552 on at

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Hi Vinit, Blue and jermy,

Thanks alot all.,, and i'll use <Status::Finish instead of <10

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