VB.NET SqlCommand.ExecuteReader方法代码示例

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本文整理汇总了VB.NET中System.Data.SqlClient.SqlCommand.ExecuteReader方法的典型用法代码示例。如果您正苦于以下问题：VB.NET SqlCommand.ExecuteReader方法的具体用法？VB.NET SqlCommand.ExecuteReader怎么用？VB.NET SqlCommand.ExecuteReader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.SqlCommand的用法示例。

在下文中一共展示了SqlCommand.ExecuteReader方法的3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，您的评价将有助于我们的系统推荐出更棒的VB.NET代码示例。

示例1: CreateCommand

Public Sub CreateCommand(ByVal queryString As String, _
  ByVal connectionString As String)
    Using connection As New SqlConnection(connectionString)
        connection.Open()

        Dim command As New SqlCommand(queryString, connection)
        Dim reader As SqlDataReader = command.ExecuteReader()
        While reader.Read()
            Console.WriteLine("{0}", reader(0))
        End While
    End Using
End Sub

开发者ID:VB.NET开发者，项目名称:System.Data.SqlClient，代码行数:12，代码来源:SqlCommand.ExecuteReader

示例2: CreateCommand

Public Sub CreateCommand(ByVal queryString As String, _
  ByVal connectionString As String)
    Using connection As New SqlConnection(connectionString)
        Dim command As New SqlCommand(queryString, connection)
        connection.Open()
        Dim reader As SqlDataReader = _
            command.ExecuteReader(CommandBehavior.CloseConnection)
        While reader.Read()
            Console.WriteLine("{0}", reader(0))
        End While
    End Using
End Sub

开发者ID:VB.NET开发者，项目名称:System.Data.SqlClient，代码行数:12，代码来源:SqlCommand.ExecuteReader

示例3: SqlCommand.ExecuteReader()

' 导入命名空间
Imports System
Imports System.Data
Imports System.Data.SqlClient


public class MainClass
   Shared Sub Main()
      Dim SqlConnection1 As New SqlConnection("server=(local)\SQLEXPRESS;" & _
          "integrated security=sspi;database=MyDatabase")

      Dim thisCommand As SqlCommand = SqlConnection1.CreateCommand()
      thisCommand.CommandText = "Select * from Employee"

      Try
         SqlConnection1.Open()
         Dim thisReader As SqlDataReader = thisCommand.ExecuteReader()
         Dim str As String = thisReader.GetValue(20).ToString()
         thisReader.Close()
      Catch ex As System.InvalidOperationException
         Dim str As String
         str = "Source : " & ex.Source
         str &= ControlChars.NewLine
         str &= "Exception Message : " & ex.Message
         str &= ControlChars.NewLine
         str &= "Stack Trace : " & ex.StackTrace
         Console.WriteLine("Specific Exception:" & str)
      Catch ex As System.Data.SqlClient.SqlException
         Dim str As String
         str = "Source : " & ex.Source
         str &= ControlChars.NewLine
         str &= "Exception Message : " & ex.Message
         Console.WriteLine("Database Exception" & str)

      Catch ex As System.Exception
         Dim str As String
         str = "Source : " & ex.Source
         str &= ControlChars.NewLine
         str &= "Exception Message : " & ex.Message
         Console.WriteLine("Generic Exception" & str )

      Finally
         If SqlConnection1.State = ConnectionState.Open Then
            Console.WriteLine("Finally block closing the connection")
            SqlConnection1.Close()
         End If
      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:49，代码来源:SqlCommand.ExecuteReader

注：本文中的System.Data.SqlClient.SqlCommand.ExecuteReader方法示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。