ListBox1_SelectedIndexChanged' is not declared.

I am adding a list box to the form like this and i am getting this error.Can you please tell me how to fix it?

       Dim ListBox1 = New ListBox
        ListBox1.Size = New Size(200, 100)   'set size
        ListBox1.Location = New Point(10, 60)  'location
        AddHandler ListBox1.SelectedIndexChanged, AddressOf ListBox1_SelectedIndexChanged   'add the event.
        Me.Controls.Add(ListBox1)
        ListBox1.MultiColumn = True
        ListBox1.SelectionMode = SelectionMode.MultiExtended

 

    for AddressOf ListBox1_SelectedIndexChanged it is giving error
"  Name 'ListBox1_SelectedIndexChanged' is not declared."

aio419Asked:
Who is Participating?
 
Jeff CertainConnect With a Mentor Commented:
Of course, the easy way to do this is

    Private Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged

    End Sub
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Jeff CertainCommented:
Have you created the event handler?
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aio419Author Commented:
While creating the event hander it is giving error
AddHandler ListBox1.SelectedIndexChanged, AddressOf ListBox1_SelectedIndexChanged  
it  do not like the 2nd part ie.AddressOf ListBox1_SelectedIndexChanged  
Is that what you asked?
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ZeonFlashConnect With a Mentor Commented:
As Chaosian said, you're getting that error because you haven't created the event function yet.  Add the following to your code:

    Private Sub ListBox1_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs)

    End Sub


You might also need to re-type the listbox (at least I did when trying it out):

        AddHandler CType(ListBox1, ListBox).SelectedIndexChanged, AddressOf ListBox1_SelectedIndexChanged  'add the event.


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aio419Author Commented:
Thanks guys.
Okay. If you want to create a list box at run time, how we do that. Do we have to make the event hander first and then make the list box object? I am not getting that.
I thought I need to create the object and then write the event handler code.
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aio419Author Commented:
and how much minimun point is requied to split it?
Thanks
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Jeff CertainCommented:
You have to have the event handler written before you add the handler. Second argument to the AddHandler is the name of the subroutine that handles your event

Private Sub CreateControls
       Dim ListBox1 = New ListBox
        ListBox1.Size = New Size(200, 100)   'set size
        ListBox1.Location = New Point(10, 60)  'location
        AddHandler ListBox1.SelectedIndexChanged, AddressOf myHandler
        Me.Controls.Add(ListBox1)
        ListBox1.MultiColumn = True
        ListBox1.SelectionMode = SelectionMode.MultiExtended
End Sub

Private Sub myHandler(ByVal sender As Object, ByVal e As System.EventArgs)
' Do something here
End Sub
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Jeff CertainCommented:
I don't htink you can assign less than 20 points per person.
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aio419Author Commented:
okay i will increase points.
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aio419Author Commented:
I increasd to 40.Still i do not get split point option!
i can not ignore ZeonFlash' answer either.B'cos he explained  my missing code from Chaosian's answer.

If i am  not getting any other option to split the points , i will award points to Chaosian .
i do not know Chaosian  can do anything to share it.
if that is the case i am very sorry ZeonFlash(even though it is only 20 points)
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aio419Author Commented:
i do not see the Split Points in that screen.( i had done in the past with 'big' points)
If you(Chaosian) can do it,please do it.Accept your first comment as the answer and ZeonFlash's first comment as the assisted answer.
Thanks
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