Enum.GetNames Method (Type)

 

Retrieves an array of the names of the constants in a specified enumeration.

Namespace:   System
Assembly:  mscorlib (in mscorlib.dll)

[ComVisibleAttribute(true)]
public static string[] GetNames(
	Type enumType
)

Parameters

enumType
Type: System.Type

An enumeration type.

Return Value

Type: System.String[]

A string array of the names of the constants in enumType.

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 a 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

Universal Windows Platform
Available since 8
.NET Framework
Available since 1.1
Portable Class Library
Supported in: portable .NET platforms
Silverlight
Available since 5.0
Windows Phone Silverlight
Available since 8.0
Windows Phone
Available since 8.1
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