DataRelationCollection::Add Method (String^, DataColumn^, DataColumn^, Boolean)
.NET Framework (current version)
Creates a DataRelation with the specified name, parent and child columns, with optional constraints according to the value of the createConstraints parameter, and adds it to the collection.
Assembly: System.Data (in System.Data.dll)
public: virtual DataRelation^ Add( String^ name, DataColumn^ parentColumn, DataColumn^ childColumn, bool createConstraints )
Parameters
- name
-
Type:
System::String^
The name of the relation.
- parentColumn
-
Type:
System.Data::DataColumn^
The parent column of the relation.
- childColumn
-
Type:
System.Data::DataColumn^
The child column of the relation.
- createConstraints
-
Type:
System::Boolean
true to create constraints; otherwise false. (The default is true).
When a DataRelation object is added to the collection, ForeignKeyConstraint and UniqueConstraint objects are created by default if they do not already exist. To prevent this, you can set createConstraints to false.
.NET Framework
Available since 1.1
Available since 1.1
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