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VB.NET OleDbConnectionStringBuilder类代码示例

本文整理汇总了VB.NET中System.Data.OleDb.OleDbConnectionStringBuilder的典型用法代码示例。如果您正苦于以下问题:VB.NET OleDbConnectionStringBuilder类的具体用法?VB.NET OleDbConnectionStringBuilder怎么用?VB.NET OleDbConnectionStringBuilder使用的例子?那么, 这里精选的类代码示例或许可以为您提供帮助。


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示例1: Module1

' 导入命名空间
Imports System.Data.OleDb    
Imports System.Collections

Module Module1
  Sub Main()
    Dim builder As New OleDbConnectionStringBuilder()
    builder.ConnectionString = "Data Source=C:\Sample.mdb"

    ' Call the Add method to explicitly add key/value
    ' pairs to the internal collection.
    builder.Add("Provider", "Microsoft.Jet.Oledb.4.0")
    builder.Add("Jet OLEDB:Database Password", "MyPassword!")
    builder.Add("Jet OLEDB:System Database", "C:\Workgroup.mdb")

    ' Set up row-level locking.
    builder.Add("Jet OLEDB:Database Locking Mode", 1)

    Console.WriteLine(builder.ConnectionString)
    Console.WriteLine()

    ' Clear current values and reset known keys to their
    ' default values.
    builder.Clear()

    ' Pass the OleDbConnectionStringBuilder an existing 
    ' connection string, and you can retrieve and
    ' modify any of the elements.
    builder.ConnectionString = _
        "Provider=DB2OLEDB;Network Transport Library=TCPIP;" & _
        "Network Address=192.168.0.12;Initial Catalog=DbAdventures;" & _
        "Package Collection=SamplePackage;Default Schema=SampleSchema;"

    Console.WriteLine("Network Address = " & builder("Network Address").ToString())
    Console.WriteLine()

    ' Modify existing items.
    builder("Package Collection") = "NewPackage"
    builder("Default Schema") = "NewSchema"

    ' Call the Remove method to remove items from 
    ' the collection of key/value pairs.
    builder.Remove("User ID")

    ' Note that calling Remove on a nonexistent item does not
    ' throw an exception.
    builder.Remove("BadItem")
    Console.WriteLine(builder.ConnectionString)
    Console.WriteLine()

    ' The Item property is the default for the class, 
    ' and setting the Item property adds the value, if 
    ' necessary.
    builder("User ID") = "SampleUser"
    builder("Password") = "SamplePassword"
    Console.WriteLine(builder.ConnectionString)

    Console.WriteLine("Press Enter to finish.")
    Console.ReadLine()
  End Sub
End Module
开发者ID:VB.NET开发者,项目名称:System.Data.OleDb,代码行数:61,代码来源:OleDbConnectionStringBuilder


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