Name

ParentKeyConstraint

Synopsis

UniqueConstraint uc = DataRelation.ParentKeyConstraint;

Retrieves the UniqueKeyConstraint object that is associated with this relationship, if it exists. This constraint is applied to the DataColumn in the parent table.

Example

The following code retrieves the associated UniqueKeyConstraint and displays some basic information about it in a console window:

UniqueConstraint uc = dr.ParentKeyConstraint;



// Does this constraint represent a primary key?

Console.WriteLine(uc.IsPrimaryKey.ToString());