ConstraintCollection.Item Property ( String )

System.Data Namespace ConstraintCollection Class

Returns the Constraint from the collection with the specified name.

Constraint variable = ConstraintCollection.Item [ name ];
... or ...
Constraint variable = ConstraintCollection [ name ];

dim variable as Constraint = ConstraintCollection.Item ( name )
... or ...
dim variable as Constraint = ConstraintCollection ( name )

variable : Constraint = ConstraintCollection.Item ( name );
... or ...
variable : Constraint = ConstraintCollection ( name );

JScript

name: The ConstraintName of the constraint to return.

The Constraint with the specified name; otherwise a null value if the Constraint does not exist.

Use the Contains method to test for the existence of a specific constraint.

The following example gets the named Constraint.

private void GetConstraint ( DataTable myTable ) {
   if ( myTable.Constraints.Contains ( "myOrdersConstraint" ) ) {
      Constraint myConstraint = myTable.Constraints [ "myOrdersConstraint" ];
   }
}

Private Sub GetConstraint ( myTable As DataTable )
   If myTable.Constraints.Contains ( "myOrdersConstraint" ) Then
      Dim myConstraint As Constraint = myTable.Constraints ( "myOrdersConstraint" )
   End If
End Sub

ConstraintCollection Members ConstraintCollection.Item Overload List

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ConstraintCollection.Item Property ( String )

Syntax

Parameters

Property Value

Remarks

Example

See Also