Q: In X++ programming, how can you reference a base enum element's associated label?
A. By using the element's index
B. By converting the enum to a string
C. By directly using the element name
D. By creating a switch-case statement
Correct Option: BExplanation:
To reference a base enum element's associated label in X++, you can convert the enum element to a string using the strFmt function or the enum2str function. This allows you to retrieve the user-friendly label associated with the enum element, enhancing the readability and clarity of your code.
Q: Base enums are represented as slider bars, drop-down menus, and option buttons.
A.True
B.False
Correct Option: AExplanation:
Base enums are represented as slider bars, drop-down menus, and option buttons.
Q: The default first literal value or option in an enumeration is internally represented by the number 1. TRUE or FALSE.
A.True
B.False
Correct Option: BExplanation:
Justification:
False: This statement is false. The first literal value in a base enumeration is represented by the number 0 by default. The second literal or option in the enumeration is represented by a 1, and so on. These numerical values can also be changed by a developer, however.
Related Lesson: Create a Base Enumeration
Q: How are base enumerations represented and stored in the database?
A.As a literal string value
B.As a numerical value
C.As an alphabetical character
D.None of the above
Correct Option: BExplanation:
Justification:
Correct Answer: As a numerical value
A. The literal string value is defined in Dynamics AX. This is what end users will see on forms and reports. However, the literal value is not stored in the database.
B. A different numerical value represents a different choice or literal value for the enumeration. This relationship is defined in Dynamics AX. The value that is stored in the database is the numerical value for the enumeration.
C. Enumerations do not use alphabetical characters to represent their literal values, but rather numerical values.
D. This is not correct as base enumerations are represented by numerical values in the database.
Q: A base enumeration can be viewed in multiple ways in the user interface of finance and operations apps. Which of the following is not an example of how a base enum can be viewed in the user interface?
A.Option buttons
B.A slider bar
C.A date field
D.A drop-down menu
Correct Option: CExplanation:
Justification:
A. Incorrect: Option buttons are base enums that are represented in the user interface.
B. Incorrect: A slider bar is a base enum that is used in the user interface.
C. Correct: A date field is an EDT, not a base enum, that is used in the user interface.
D. Incorrect: A drop-down menu is a base enum that is viewed in the user interface.
Q: Is this a valid code for enum?
NoYes done;
A.Yes
B.No
Correct Option: AExplanation:
An enum is a list of literals. Before you can use an enum, you must declare it in Application Explorer.
Hundreds of enumerable types are built into the standard application. For example, the NoYes enum has two associated literals: No has the value 0, and Yes has the value 1.
To reference an enum value, enter the name of the enum, two colons, and then the name of the literal. For example, to use the literal No in the NoYes enum, enter NoYes::No.
Q: Which of the following is true about base enum elements in X++?
A. Elements must have numeric values
B. Elements cannot have associated labels
C. Elements are implicitly assigned sequential integers
D. Elements are exclusively used for exception handling
Correct Option: CExplanation:
Base enum elements in X++ are implicitly assigned sequential integers, starting from 0 by default. However, you can explicitly assign integer values to enum elements if needed. This feature ensures that each enum element corresponds to a unique numeric value, making it easier to work with these elements in your code.
Q: How are base enums represented and stored in the database?
A.A literal string value
B.A numerical value
C.An alphabetical character
D.A series of numerical and alphabetical characters
Correct Option: BExplanation:
Justification:
A. Incorrect: Users see the literal string value in the user interface, but the literal value isn’t stored in the database.
B. Correct: Base enums are stored as numeric values (for example, 0, 1, 2) in the database.
C. Incorrect: Numerical values, not alphabetical characters, are used when storing base enums in the database.
D. Incorrect: Only numerical values are stored in the database.
Q: I have a Enum named Criteria. Can I create an array of Criteria enums like below?
//An array of Criteria enums
Criteria crit[100];
A.Yes
B.No
Correct Option: AExplanation:
You must create an enum type in the AOT before you can declare it.
Q: 3. Which of the following is examples of field types where a base enumeration shouldn't be used? Odd one out.
A.A posting type field
B.All other option not A transaction date field
C.A sales order status field
D.ABC Codes to rate customers, vendors or items
Correct Option: BExplanation:
Justification: A, C, D
A posting type field typically represents a finite list of posting types. This can be represented as a radio button or drop down list on the user interface. A different numerical value can be associated with each literal value of posting type.
A transaction date field can have many different values and would be best represented by using the date time or UTC Date Time data type, not a base enumeration.
A sales order status field will contain a list of literal values to indicate the status of sales order. For example, “Delivered” can be one value. This list of different sales order statuses is represented by a base enumeration in AX.
ABC Codes can store a list of literal values to be represented by a base enumeration. ABC Codes can be used as rating a system for a customer’s credit, for example.
Module 1: Introduction to Visual Studio - Quiz 13 
Module 4: Base Enumerations - Quiz 
Module 12: X++ Overview - Quiz 13 
Module 13: Classes - Quiz 18