DataRelationCollection serializable

DataRelationCollection

serializable

---

System.Data (system.data.dll)

abstract class

This collection contains all DataRelation objects for a DataSet . This collection is accessed through the DataSet.Relations property. You can look up a DataRelation object by index or by name .

 public abstract class  DataRelationCollection  : InternalDataCollectionBase {  // Protected Constructors  protected  DataRelationCollection  (  );  // Public Instance Properties  public abstract DataRelation  this[string    name    ]  {get; }     public abstract DataRelation  this[int    index    ]  {get; }  // Public Instance Methods  public virtual DataRelation  Add  (DataColumn[ ]   parentColumns   , DataColumn[ ]   childColumns   );    public virtual DataRelation  Add  (DataColumn   parentColumn   , DataColumn   childColumn   );    public virtual DataRelation  Add  (string   name   , DataColumn[ ]   parentColumns   , DataColumn[ ]   childColumns   );    public virtual DataRelation  Add  (string   name   , DataColumn[ ]   parentColumns   ,        DataColumn[ ]   childColumns   , bool   createConstraints   );    public virtual DataRelation  Add  (string   name   , DataColumn   parentColumn   , DataColumn   childColumn   );    public virtual DataRelation  Add  (string   name   , DataColumn   parentColumn   , DataColumn   childColumn   , bool   createConstraints   );    public void  Add  ( DataRelation   relation   );      public virtual void  AddRange  ( DataRelation[ ]   relations   );      public virtual bool  CanRemove  ( DataRelation   relation   );      public virtual void  Clear  (  );      public virtual bool  Contains  ( string   name   );      public virtual int  IndexOf  ( DataRelation   relation   );      public virtual int  IndexOf  ( string   relationName   );      public void  Remove  ( DataRelation   relation   );      public void  Remove  ( string   name   );      public void  RemoveAt  ( int   index   );  // Protected Instance Methods  protected virtual void  AddCore  ( DataRelation   relation   );      protected abstract DataSet  GetDataSet  (  );      protected virtual void  OnCollectionChanged  (System.ComponentModel.CollectionChangeEventArgs   ccevent   );    protected internal virtual void  OnCollectionChanging  (         System.ComponentModel.CollectionChangeEventArgs   ccevent   );      protected virtual void  RemoveCore  ( DataRelation   relation   );  // Events  public event CollectionChangeEventHandler  CollectionChanged  ;   } 

Hierarchy

System.Object InternalDataCollectionBase(System.Collections.ICollection, System.Collections.IEnumerable) DataRelationCollection

Returned By

DataSet.Relations , DataTable.{ChildRelations , ParentRelations}