Progress.Util.EnumHelper class

(Windows only; GUI for .NET only)

A helper class that provides a set of static methods you can use to perform operations on .NET enumeration types in ABL.

Serializable:

No

Constructors

This class does not contain a constructor.

Super Class

This class does not inherit a super class.

Interfaces

This class does not implement interfaces (beyond those it inherits from its base class).

Public Properties

This class does not contain properties.

Public Methods

Public Events

This class does not contain events (beyond those it inherits from its base class).

Notes

• The functionality for all of the methods of this class, except for Add( ) and Subtract( ), can be accomplished for .NET enums using ABL operators (e.g., you can use GE or >= operator instead of IsGreaterOrEqual( ), NOT operator (bitwise) instead of Complement( ), etc.). These methods are still supported for backward compatibility.
• Some Progress.Util.EnumHelper methods return a System.Enum class instance. If you want to use the returned System.Enum instance as a different enumeration type, you must cast the instance to that specific type using the CAST function. For example:

  USING System.Windows.Forms.* FROM ASSEMBLY. USING Progress.Util.* FROM ASSEMBLY. DEFINE VARIABLE myButton AS Button. DEFINE VARIABLE myStyle  AS System.Enum. myButton = NEW Button(). myStyle  = EnumHelper:Or( AnchorStyles:Bottom, AnchorStyles:Right ). myButton:Anchor = CAST( myStyle, AnchorStyles ). /* Displays "Bottom, Right" */ DISPLAY STRING( myButton:Anchor ) FORMAT "x(20)".

• For information on the System.Enum class and .NET enumeration types, refer to the .NET Framework class library.
• For information on user-defined enumerations in ABL, see the ENUM statement.

See also

CAST function, DELETE OBJECT statement