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Hashtable.KeyEquals Method

.NET Framework 4.5

Compares a specific Object with a specific key in the Hashtable.

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

'Declaration
Protected Overridable Function KeyEquals ( _
	item As Object, _
	key As Object _
) As Boolean

Parameters

item: Type: System.Object
The Object to compare with key.

key: Type: System.Object
The key in the Hashtable to compare with item.

Return Value

Type: System.Boolean
true if item and key are equal; otherwise, false.

Exceptions

Exception	Condition
ArgumentNullException	item is Nothing. -or- key is Nothing.

Exception

Condition

ArgumentNullException

item is Nothing.

-or-

key is Nothing.

Remarks

If the hash table was created with a specific IComparer implementation, this method uses that comparer; that is, Compare (item, key). Otherwise, it uses item.Equals(key).

This method is an O(1) operation.

Version Information

.NET Framework

Supported in: 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Platforms

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.

Reference

Hashtable Class

System.Collections Namespace

Object

Compare

Object.Equals

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