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VB.NET SqlDataReader.Read方法代码示例

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
开发者ID:VB.NET开发者,项目名称:System.Data.SqlClient,代码行数:40,代码来源:SqlDataReader.Read

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
开发者ID:VB程序员,项目名称:System.Data.SqlClient,代码行数:35,代码来源:SqlDataReader.Read


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