ADO.NET中的DataReader简介(1)

(Visual Basic)a
Imports System.Data.SqlClient
[C#]
using System.Data.SqlClient;

[Visual Basic]
Imports System.Data.OleDb
[C#]
using System.Data.OleDb;

[Visual Basic]
Dim adoConn As SqlConnection = New SqlConnection("Data source=DBServer;
initial catalog=Northwind; persist security info=True;user id=sa")
[C#]
SqlConnection adoConn = new SqlConnection("Data source=DBServer;initial 
  catalog=Northwind;
persist security info=True;user id=sa");

[Visual Basic]
Dim adoConn As OleDbConnection = New OleDbConnection
  ("Provider=SQLOLEDB;Data Source=localhost;
Integrated Security=SSPI;Initial Catalog=northwind")
[C#]
OleDbConnection adoConn = new OleDbConnection("Provider=SQLOLEDB;
Data Source=localhost;Integrated Security=SSPI;Initial Catalog=northwind ");

[Visual Basic]
Dim sqlMyReader As SqlDataReader = cmdMyCommand.ExecuteReader()
[C#]
SqlDataReader sqlMyReader = cmdMyCommand.ExecuteReader();
OleDbDataReader
[Visual Basic]
Dim oleMyReader As OleDbDataReader = cmdMyCommand.ExecuteReader()
[C#]
OleDbDataReader oleMyReader = cmdMyCommand.ExecuteReader();