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AttributeCollection.FromExisting Method

Creates a new AttributeCollection from an existing AttributeCollection.

Namespace:  System.ComponentModel
Assembly:  System (in System.dll)
public static AttributeCollection FromExisting(
	AttributeCollection existing,
	params Attribute[] newAttributes


Type: System.ComponentModel.AttributeCollection

An AttributeCollection from which to create the copy.

Type: System.Attribute[]

An array of type Attribute that provides the attributes for this collection. Can be null.

Return Value

Type: System.ComponentModel.AttributeCollection
A new AttributeCollection that is a copy of existing.

existing is null.

If the newAttributes parameter is provided, its Attribute entries are merged with those of the existing parameter.

.NET Framework

Supported in: 4.5.1, 4.5, 4, 3.5, 3.0, 2.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows Phone 8.1, Windows Phone 8, 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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