Name

RelatedColumns [ForeignKeyConstraint only]

Synopsis

DataColumn[] cols = Constraint.RelatedColumns;

This returns an array containing the parent DataColumn objects for this relationship. Typically, this is a single column from the parent DataTable. For example, if you define a Customers.CustomerID → Orders.CustomerID relationship, the Orders table contains the ForeignKeyConstraint object, and the Customers table is the related table. The ForeignKeyConstraint.RelatedColumns property then returns a single DataColumn representing the Customers.CustomerID field.

Example

The following code snippet retrieves the first parent DataColumn and displays its name:

DataColumn col = fkc.RelatedColumns[0];

Console.WriteLine("The linked column child is: " + col.ColumnName);