Hashtable.CopyTo Method copies the Hashtable elements to a one-dimensional Array instance at the specified index.

 

Imports System
Imports System.Collections

Public Class SamplesHashtable
    Public Shared Sub Main()
        Dim mySourceHT As New Hashtable()
        mySourceHT.Add("A", "valueA")
        mySourceHT.Add("B", "valueB")

        Dim myTargetArray(14) As String
        myTargetArray(0) = "The"
        myTargetArray(1) = "quick"
        myTargetArray(2) = "brown"
        myTargetArray(3) = "fox"

        PrintValues(myTargetArray)

        mySourceHT.Keys.CopyTo(myTargetArray, 6)

        PrintValues(myTargetArray)

        mySourceHT.Values.CopyTo(myTargetArray, 6)

        PrintValues(myTargetArray)

    End Sub 'Main

    Public Shared Sub PrintValues(myArr() As String)
        Dim i As Integer
        For i = 0 To myArr.Length - 1
            Console.WriteLine("{0}", myArr(i))
        Next i
    End Sub
End Class

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8.	Hashtable.Add Method adds an element with the specified key and value into the Hashtable.
9.	Hashtable.Clear Method removes all elements from the Hashtable.
10.	Hashtable.Contains Method Determines whether the Hashtable contains a specific key.
11.	Hashtable.GetEnumerator Method returns an IDictionaryEnumerator that iterates through the Hashtable.
12.	Displays the keys and values of the Hashtable using foreach statement
13.	Hashtable.IsSynchronized Property gets a value indicating whether access to the Hashtable is synchronized (thread safe).
14.	Hashtable.Remove Method removes the element with the specified key from the Hashtable.

Hashtable.CopyTo Method copies the Hashtable elements to a one-dimensional Array instance at the specified index. : HashTable « Data Structure « VB.Net

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