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VB.NET OleDbConnectionStringBuilder.Clear方法代码示例

本文整理汇总了VB.NET中System.Data.OleDb.OleDbConnectionStringBuilder.Clear方法的典型用法代码示例。如果您正苦于以下问题:VB.NET OleDbConnectionStringBuilder.Clear方法的具体用法?VB.NET OleDbConnectionStringBuilder.Clear怎么用?VB.NET OleDbConnectionStringBuilder.Clear使用的例子?那么, 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.OleDb.OleDbConnectionStringBuilder的用法示例。


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示例1: Module1

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

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)

    ' Dump the contents of the "filled-in" OleDbConnectionStringBuilder
    ' to the console window.
    DumpBuilderContents(builder)

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

    ' Dump the contents of the newly emptied 
    ' OleDbConnectionStringBuilder
    ' to the console window.
    DumpBuilderContents(builder)

    Console.WriteLine("Press Enter to continue.")
    Console.ReadLine()
  End Sub

  Private Sub DumpBuilderContents(ByVal builder As OleDbConnectionStringBuilder)
    Console.WriteLine("=================")
    Console.WriteLine("builder.ConnectionString = " & builder.ConnectionString)
    For Each key As String In builder.Keys
      Console.WriteLine(key & "=" & builder.Item(key).ToString)
    Next
  End Sub
End Module
开发者ID:VB.NET开发者,项目名称:System.Data.OleDb,代码行数:42,代码来源:OleDbConnectionStringBuilder.Clear


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