【VB.NET】ADO.Net学习(二)DataReader填充DataTable

Imports  System
Imports  System.Data
Imports  System.Data.Common

Namespace  DataUtils

    
Public   Class  DataReaderAdapter
        
Inherits  DbDataAdapter

        
Public   Function  FillFromReader( ByRef  dataTable  As  DataTable,  ByVal  dataReader  As  IDataReader)  As   Integer
            
Return   Me .Fill(dataTable, dataReader)
        
End Function

        
Protected   Overloads   Overrides   Function  CreateRowUpdatedEvent( ByVal  dataRow  As  DataRow,  ByVal   command   As  IDbCommand,  ByVal  statementType  As  StatementType,  ByVal  tableMapping  As  DataTableMapping)  As  RowUpdatedEventArgs
            
Return   Nothing
        
End Function

        
Protected   Overloads   Overrides   Function  CreateRowUpdatingEvent( ByVal  dataRow  As  DataRow,  ByVal   command   As  IDbCommand,  ByVal  statementType  As  StatementType,  ByVal  tableMapping  As  DataTableMapping)  As  RowUpdatingEventArgs
            
Return   Nothing
        
End Function

        
Protected   Overloads   Overrides   Sub  OnRowUpdated( ByVal  value  As  RowUpdatedEventArgs)
        
End Sub

        
Protected   Overloads   Overrides   Sub  OnRowUpdating( ByVal  value  As  RowUpdatingEventArgs)
        
End Sub

    
End Class
End Namespace
IDataReader 接口
提供一种方法来读取一个或多个通过在数据源执行命令所获得的只进结果集流,这是由访问关系数据库的 .NET Framework 数据提供程序实现的。

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