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NameObjectCollectionBase Constructor (IEqualityComparer)

Initializes a new instance of the NameObjectCollectionBase class that is empty, has the default initial capacity, and uses the specified IEqualityComparer object.

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

protected NameObjectCollectionBase(
	IEqualityComparer equalityComparer
)

Parameters

equalityComparer
Type: System.Collections.IEqualityComparer

The IEqualityComparer object to use to determine whether two keys are equal and to generate hash codes for the keys in the collection.

The capacity of a NameObjectCollectionBase object is the number of elements that the NameObjectCollectionBase can hold. As elements are added to a NameObjectCollectionBase, the capacity is automatically increased as required by reallocating the internal array.

If the size of the collection can be estimated, specifying the initial capacity eliminates the need to perform a number of resizing operations while adding elements to the NameObjectCollectionBase.

The IEqualityComparer object combines the comparer and the hash code provider. The hash code provider dispenses hash codes for keys in the NameObjectCollectionBase. The comparer determines whether two keys are equal.

This constructor is an O(1) operation.

.NET Framework

Supported in: 4.5.2, 4.5.1, 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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