This documentation is archived and is not being maintained.

StringComparer.GetHashCode Method (String)

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.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

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.
Show: