VB.NET Hashtable.Add方法代碼示例

本文整理匯總了VB.NET中System.Collections.Hashtable.Add方法的典型用法代碼示例。如果您正苦於以下問題：VB.NET Hashtable.Add方法的具體用法？VB.NET Hashtable.Add怎麽用？VB.NET Hashtable.Add使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Collections.Hashtable的用法示例。

在下文中一共展示了Hashtable.Add方法的2個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的VB.NET代碼示例。

示例1: SamplesHashtable

' 導入命名空間
Imports System.Collections

Public Class SamplesHashtable

    Public Shared Sub Main()

        ' Creates and initializes a new Hashtable.
        Dim myHT As New Hashtable()
        myHT.Add("one", "The")
        myHT.Add("two", "quick")
        myHT.Add("three", "brown")
        myHT.Add("four", "fox")

        ' Displays the Hashtable.
        Console.WriteLine("The Hashtable contains the following:")
        PrintKeysAndValues(myHT)

    End Sub

    Public Shared Sub PrintKeysAndValues(myHT As Hashtable)
        Console.WriteLine(vbTab + "-KEY-" + vbTab + "-VALUE-")
        For Each de As DictionaryEntry In myHT
            Console.WriteLine(vbTab + "{0}:" + vbTab + "{1}", de.Key, de.Value)
        Next
        Console.WriteLine()
    End Sub

End Class

開發者ID:VB.NET開發者，項目名稱:System.Collections，代碼行數:29，代碼來源:Hashtable.Add

輸出：

The Hashtable contains the following:
-KEY-   -VALUE-
two:    quick
one:    The
three:  brown
four:   fox

示例2: MainClass

' 導入命名空間
Imports System
Imports System.Collections

Public Class MainClass

   Public Shared Sub Main()

      Dim table As Hashtable = New Hashtable() 
   
      Dim employee As New Employee("First Name", "Last Name")

      Try
         table.Add("Last Name", employee)
         Console.WriteLine("Put: " & employee.ToString())

      Catch argumentException As ArgumentException
         Console.WriteLine(argumentException.ToString())
      End Try

      Dim result As Object = table("Last Name")

      If Not result Is Nothing Then
         Console.WriteLine("Get: " & result.ToString())
      Else
         Console.WriteLine("Get: " & "Last Name" & " not in table")
      End If


      table.Remove("Last Name")

      Console.WriteLine("table count: " & table.Count)

      Console.WriteLine("Contains key: " & table.ContainsKey("Last Name"))
      table.Clear()

      Dim enumerator As IDictionaryEnumerator = table.GetEnumerator()

      While enumerator.MoveNext()
         Console.WriteLine(Convert.ToString(enumerator.Value))
      End While


      enumerator = table.GetEnumerator()

      While enumerator.MoveNext()
         Console.WriteLine(enumerator.Key )
      End While

   End Sub

End Class



Public Class Employee
   Private firstName, lastName As String

   Public Sub New(ByVal first As String, ByVal last As String)
      firstName = first
      lastName = last
   End Sub 

   Public Overrides Function ToString() As String
      Return firstName & " " & lastName
   End Function 

End Class

開發者ID:VB程序員，項目名稱:System.Collections，代碼行數:68，代碼來源:Hashtable.Add

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