Adding a random number within a range to a list

[ticktock]

EDIT: I am so sorry! I have added my thread to the C# discussion thread instinctively wherein in fact I have been creating my application in VB.NET so sorry! Please transfer my thread to the appropriate location! Really sorry!

Hey all I am currently trying to mess around with a simple mp3 player and am in the process of creating a shuffle list from all the songs in my playlist.

So here is my random number generating code (which I guess does not work for it hangs my application)

For i As Integer = 0 To Me.songList.Count - 1
                Dim wasIndexAdded As Boolean = False
                Do Until wasIndexAdded
                    Dim randomClass As New Random(Me.songList.Count - 1)
                    Dim randNum As Integer = -1
                    randNum = randomClass.Next()
                    If Not Me.shuffleIndexList.Contains(randNum) Then
                        Me.shuffleIndexList.Add(randNum)
                        wasIndexAdded = True
                    End If
                Loop
            Next i

I do not know what is wrong with the code, I have tried another version of that here:

For i As Integer = 0 To Me.songList.Count - 1
                Dim wasIndexAdded As Boolean = False
                Dim randomClass As New Random()
                Do Until wasIndexAdded
                    Dim randNum As Integer = -1
                    randNum = randomClass.Next(Me.songList.Count - 1)
                    If Not Me.shuffleIndexList.Contains(randNum) Then
                        Me.shuffleIndexList.Add(randNum)
                        wasIndexAdded = True
                    End If
                Loop
            Next i

Any help or suggestions will be greatly appreciated!

[kvprajapati]

Try this,

Sub Main()
        Dim count As Integer = Me.songList.Count
        Dim lst As New List(Of Integer)
        For i As Integer = 1 To count
            lst.Add(i)
        Next

        Dim rnd As New Random
        Dim ind1, ind2, tmp As Integer
        For i = 1 To count
            ind1 = rnd.Next(count)
            ind2 = rnd.Next(count)

            tmp = lst(ind1)
            lst(ind1) = lst(ind2)
            lst(ind2) = tmp
        Next


        For Each t As Integer In lst
            Console.WriteLine(t)
        Next
    End Sub

[ticktock]

Oh you used that swapping algorithm here right? where in you randomize one index in the list, get the value of that index, store it in temp, assign a new value to the index by getting a value from another randomized index and then storing the previous index's value to the new randomized index's value, is this right? :)