Enum.GetNames Method
Retrieves an array of the names of the constants in a specified enumeration.
Assembly: mscorlib (in mscorlib.dll)
Parameters
- enumType
- Type: System.Type
An enumeration type.
| Exception | Condition |
|---|---|
| ArgumentNullException | enumType is null. |
| ArgumentException | enumType parameter is not an Enum. |
The elements of the return value array are sorted by the binary values of the enumerated constants (that is, by their unsigned magnitude). The following example provides displays information about the array returned by the GetNames method for an enumeration that includes a negative, zero, and positive value.
using System; enum SignMagnitude { Negative = -1, Zero = 0, Positive = 1 }; public class Example { public static void Main() { foreach (var name in Enum.GetNames(typeof(SignMagnitude))) { Console.WriteLine("{0,3:D} 0x{0:X} {1}", Enum.Parse(typeof(SignMagnitude), name), name); } } } // The example displays the following output: // 0 0x00000000 Zero // 1 0x00000001 Positive // -1 0xFFFFFFFF Negative
If there are enumerated constants with same value, the order of their corresponding names is unspecified.
The following example illustrates the use of the GetNames method.
using System; public class GetNamesTest { enum Colors { Red, Green, Blue, Yellow }; enum Styles { Plaid, Striped, Tartan, Corduroy }; public static void Main() { Console.WriteLine("The members of the Colors enum are:"); foreach(string s in Enum.GetNames(typeof(Colors))) Console.WriteLine(s); Console.WriteLine(); Console.WriteLine("The members of the Styles enum are:"); foreach(string s in Enum.GetNames(typeof(Styles))) Console.WriteLine(s); } } // The example displays the following output: // The members of the Colors enum are: // Red // Green // Blue // Yellow // // The members of the Styles enum are: // Plaid // Striped // Tartan // Corduroy
Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
