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UniqueConstraint Constructor (DataColumn[])

Initializes a new instance of the UniqueConstraint class with the given array of DataColumn objects.

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

public UniqueConstraint(
	DataColumn[] columns
)

Parameters

columns
Type: System.Data.DataColumn[]

The array of DataColumn objects to constrain.

.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

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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