This documentation is archived and is not being maintained.

CultureAndRegionInfoBuilder.ThreeLetterISORegionName Property

Gets or sets the three-letter code defined in ISO 3166 for the country/region.

Namespace:  System.Globalization
Assembly:  sysglobl (in sysglobl.dll)

public string ThreeLetterISORegionName { get; set; }

Property Value

Type: System.String
The three-letter code defined in ISO 3166 for the country/region.


The value in a set operation is null.


The length of the value in a set operation does not range from 1 to 8 characters.


The value in a set operation contains a character that is not in the range "a" to "z", "A" to "Z", or "0" to "9".

The ThreeLetterISORegionName property corresponds to the ThreeLetterISORegionName property.

The ThreeLetterISORegionName property contains one of the three-letter codes defined in ISO 3166 for country/region. For example, the three-letter code for United States is "USA".

Case is not significant. However, the RegionName, TwoLetterISORegionName, and the ThreeLetterISORegionName properties contain the appropriate code in uppercase.

The predefined country/region names are listed in the RegionInfo class topic.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.