Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

Constraint.ConstraintName Property

The name of a constraint in the ConstraintCollection.

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

public virtual string ConstraintName { get; set; }

Property Value

Type: System.String
The name of the Constraint.

ExceptionCondition
ArgumentException

The Constraint name is a null value or empty string.

DuplicateNameException

The ConstraintCollection already contains a Constraint with the same name (The comparison is not case-sensitive.).

The ConstraintCollection is returned by the Constraints property of the DataTable class.

The following example iterates through the ConstraintCollection of a DataTable and prints each ConstraintName.

private void PrintConstraintNames(DataTable myTable){
   foreach(Constraint cs in myTable.Constraints){
      Console.WriteLine(cs.ConstraintName);
   }
}

.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
Show:
© 2015 Microsoft