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Hashtable.EqualityComparer Property

Gets the IEqualityComparer to use for the Hashtable.

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

'Declaration
Protected ReadOnly Property EqualityComparer As IEqualityComparer

ExceptionCondition
ArgumentException

The property is set to a value, but the hash table was created using an IHashCodeProvider and an IComparer.

The IEqualityComparer includes both the comparer and the hash code provider. If an IEqualityComparer is used in the Hashtable constructor, the objects used as keys in the Hashtable are not required to override the Object.GetHashCode and Object.Equals methods.

Retrieving the value of this property is an O(1) operation.

.NET Framework

Supported in: 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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