Initializes a new instance of the UniqueConstraint.
Initializes a new instance of the UniqueConstraint with the specified name and DataColumn.
[Visual Basic] Overloads Public Sub New(String, DataColumn)
[C#] public UniqueConstraint(String, DataColumn);
[C++] public: UniqueConstraint(String*, DataColumn);
[JScript] public function UniqueConstraint(String, DataColumn);
Initializes a new instance of the UniqueConstraint with the specified DataColumn.
[Visual Basic] Overloads Public Sub New(DataColumn)
[C#] public UniqueConstraint(DataColumn);
[C++] public: UniqueConstraint(DataColumn*);
[JScript] public function UniqueConstraint(DataColumn);
Initializes a new instance of the UniqueConstraint with the specified name and array of DataColumn objects.
[Visual Basic] Overloads Public Sub New(String, DataColumn())
[C#] public UniqueConstraint(String, DataColumn[]);
[C++] public: UniqueConstraint(String*, DataColumn[]);
[JScript] public function UniqueConstraint(String, DataColumn[]);
Initializes a new instance of the UniqueConstraint with the given array of DataColumn objects.
[Visual Basic] Overloads Public Sub New(DataColumn())
[C#] public UniqueConstraint(DataColumn[]);
[C++] public: UniqueConstraint(DataColumn*[]);
[JScript] public function UniqueConstraint(DataColumn[]);
The following example creates a new UniqueConstraint and assigns it to the ParentKeyConstraint property of a DataRelation.
Note This example shows how to use one of the overloaded version of the UniqueConstraint constructor. For other examples that may be available, see the individual overload topics.
[Visual Basic]
Private Sub CreateUniqueConstraint Dim cstrt As UniqueConstraint ' Get the DataColumn of a table in a DataSet. Dim dc As DataColumn Set dc = DataSet1.Tables("Suppliers").Columns("SupplierID") ' Create the constraint. Set cstrt = New UniqueConstraint(dc) ' Add the constraint to a DataRelation of the DataSet. DataSet1.Relations.Add cstrt End Sub
UniqueConstraint Class | UniqueConstraint Members | System.Data Namespace