This exception occurs only if you call the DataRow.EndEdit( ) method within the DataTable.RowChanging event handler. (The row is automatically placed into edit mode before the DataTable.RowChanging event is called, and the edit is committed at the end of the DataTable.RowChanging event.)

public class InRowChangingEventException : DataException {
// Public Constructors
   public InRowChangingEventException(  );  
   public InRowChangingEventException( string s);  
// Protected Constructors
   protected InRowChangingEventException(System.Runtime.Serialization.SerializationInfo info,
        System.Runtime.Serialization.StreamingContext context);
}

Hierarchy

System.Object System.Exception(System.Runtime.Serialization.ISerializable) System.SystemException DataException InRowChangingEventException