GetHashCode Method (String)
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StringComparer.GetHashCode Method (String)

Updated: August 2010

When overridden in a derived class, gets the hash code for the specified string.

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

public abstract int GetHashCode(
	string obj
)

Parameters

obj
Type: System.String

A string.

Return Value

Type: System.Int32
A 32-bit signed hash code calculated from the value of the obj parameter.

Implements

IEqualityComparer<T>.GetHashCode(T)

ExceptionCondition
ArgumentException

Not enough memory is available to allocate the buffer required to compute the hash code.

The GetHashCode method is more efficient than the GetHashCode method because the obj parameter does not have to be unboxed to perform the operation.

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC, Xbox 360, Zune

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

.NET Framework

Supported in: 3.5, 3.0, 2.0

.NET Compact Framework

Supported in: 3.5, 2.0

XNA Framework

Supported in: 3.0, 2.0, 1.0

Date

History

Reason

August 2010

Added exception information.

Content bug fix.

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