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UniqueConstraint Constructor (String, DataColumn[])

UniqueConstraint Constructor (String, array<DataColumn>)

Initializes a new instance of the UniqueConstraint class with the specified name and array of DataColumn objects.

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

public:
UniqueConstraint(
	String^ name, 
	array<DataColumn^>^ columns
)

Parameters

name
Type: System::String

The name of the constraint.

columns
Type: array<System.Data::DataColumn>

The array of DataColumn objects to constrain.

The following example creates a DataTable with two columns, and adds a new UniqueConstraint to the ConstraintCollection.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

XNA Framework

Supported in: 3.0, 2.0, 1.0
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