本文整理汇总了VB.NET中System.Data.SqlClient.SqlDataReader.Read方法的典型用法代码示例。如果您正苦于以下问题:VB.NET SqlDataReader.Read方法的具体用法?VB.NET SqlDataReader.Read怎么用?VB.NET SqlDataReader.Read使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类System.Data.SqlClient.SqlDataReader
的用法示例。
在下文中一共展示了SqlDataReader.Read方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的VB.NET代码示例。
示例1: Module1
Option Explicit On
Option Strict On
Imports System.Data
Imports System.Data.SqlClient
Module Module1
Sub Main()
Dim str As String = "Data Source=(local);Initial Catalog=Northwind;" _
& "Integrated Security=SSPI;"
ReadOrderData(str)
End Sub
Private Sub ReadOrderData(ByVal connectionString As String)
Dim queryString As String = _
"SELECT OrderID, CustomerID FROM dbo.Orders;"
Using connection As New SqlConnection(connectionString)
Dim command As New SqlCommand(queryString, connection)
connection.Open()
Dim reader As SqlDataReader = command.ExecuteReader()
' Call Read before accessing data.
While reader.Read()
ReadSingleRow(CType(reader, IDataRecord))
End While
' Call Close when done reading.
reader.Close()
End Using
End Sub
Private Sub ReadSingleRow(ByVal record As IDataRecord)
Console.WriteLine(String.Format("{0}, {1}", record(0), record(1)))
End Sub
End Module
示例2: SqlDataReader.Read()
' 导入命名空间
Imports System
Imports System.Collections
Imports System.Data
Imports System.IO
Imports System.Xml.Serialization
Imports System.Xml
Imports System.Windows.Forms
Imports System.Data.SqlClient
Public Class MainClass
Shared Dim WithEvents con As SqlConnection
Shared Sub Main()
con = New SqlConnection("Server=(local)\SQLEXPRESS;Initial Catalog=MyDatabase;Integrated Security=SSPI")
Dim cmd As New SqlCommand()
cmd.CommandText = "SELECT FirstName, LastName FROM Employee"
cmd.Connection = con
Try
con.Open()
Dim reader As SqlDataReader = cmd.ExecuteReader(CommandBehavior.SingleRow)
While reader.Read()
Console.WriteLine("{0} - {1}", _
reader.GetString(0), reader.GetString(1))
End While
reader.Close()
Finally
con.Close()
End Try
End Sub
End Class