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UniqueConstraint Constructor (DataColumn, Boolean)

.NET Framework 4.5

Initializes a new instance of the UniqueConstraint class with the DataColumn to constrain, and a value specifying whether the constraint is a primary key.

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

Syntax

C++

public UniqueConstraint(
	DataColumn column,
	bool isPrimaryKey
)

Parameters

column: Type: System.Data.DataColumn
The DataColumn to constrain.

isPrimaryKey: Type: System.Boolean
true to indicate that the constraint is a primary key; otherwise, false.

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

UniqueConstraint Class

UniqueConstraint Overload

System.Data Namespace

Other Resources

DataTable Constraints (ADO.NET)

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