DataRelationCollection.Add Method (DataColumn, DataColumn)


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Creates a DataRelation with a specified parent and child column, and adds it to the collection.

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

public virtual DataRelation Add(
	DataColumn parentColumn,
	DataColumn childColumn


Type: System.Data.DataColumn

The parent column of the relation.

Type: System.Data.DataColumn

The child column of the relation.

Return Value

Type: System.Data.DataRelation

The created relation.

When a DataRelation object is added to the collection, ForeignKeyConstraint and UniqueConstraint objects are created by default if they do not already exist.

.NET Framework
Available since 1.1
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