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StringComparer.Equals Method (String, String)

When overridden in a derived class, indicates whether two strings are equal.

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

public abstract bool Equals(
	string x,
	string y


Type: System.String
A string to compare to y.
Type: System.String
A string to compare to x.

Return Value

Type: System.Boolean
true if x and y refer to the same object, or x and y are equal; otherwise, false.


IEqualityComparer<T>.Equals(T, T)

The StringComparer.Equals(String, String) method is more efficient than the StringComparer.Equals(Object, Object) method because the x and y parameters do not have to be unboxed to perform the comparison.

.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.