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CompareInfo.IsSortable Method (String)

Indicates whether a specified Unicode string is sortable.

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

public static bool IsSortable(
	string text


Type: System.String

A string of zero or more Unicode characters.

Return Value

Type: System.Boolean
true if the str parameter is not an empty string ("") and all the Unicode characters in str are sortable; otherwise, false.


str is null.

Each Unicode character in the str parameter is represented by one or more UTF-16 encoded Char objects. The str parameter is sortable if each Unicode character is defined in an internal CompareInfo class sort table, and is not a private use or unpaired high or low surrogate character.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, 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.

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