Constraint.ConstraintName Property

Reference

Definition

Namespace:: System.Data

Assemblies:: netstandard.dll, System.Data.Common.dll

Assembly:: System.Data.Common.dll

Assembly:: System.Data.dll

Assembly:: netstandard.dll

Source:: Constraint.cs

Source:: Constraint.cs

Source:: Constraint.cs

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

The name of a constraint in the ConstraintCollection.

public:
 virtual property System::String ^ ConstraintName { System::String ^ get(); void set(System::String ^ value); };

public virtual string ConstraintName { get; set; }

[System.Data.DataSysDescription("ConstraintNameDescr")]
public virtual string ConstraintName { get; set; }

member this.ConstraintName : string with get, set

[<System.Data.DataSysDescription("ConstraintNameDescr")>]
member this.ConstraintName : string with get, set

Public Overridable Property ConstraintName As String

Property Value

String

The name of the Constraint.

Attributes: DataSysDescriptionAttribute

Exceptions

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.).

Examples

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);
   }
}

Private Sub PrintConstraintNames(myTable As DataTable)
    Dim cs As Constraint
    For Each cs In  myTable.Constraints
        Console.WriteLine(cs.ConstraintName)
    Next cs
End Sub

Remarks

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

Applies to

Product	Versions
.NET	Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8, 9, 10
.NET Framework	1.1, 2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1
.NET Standard	2.0, 2.1

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