本文整理汇总了VB.NET中System.Collections.Hashtable.Add方法的典型用法代码示例。如果您正苦于以下问题：VB.NET Hashtable.Add方法的具体用法？VB.NET Hashtable.Add怎么用？VB.NET Hashtable.Add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.Collections.Hashtable的用法示例。
在下文中一共展示了Hashtable.Add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: SamplesHashtable
' 导入命名空间
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输出：
The Hashtable contains the following: -KEY- -VALUE- two: quick one: The three: brown four: fox
示例2: MainClass
' 导入命名空间
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