How to remove subitems in the label?

[PillKilla]

Hi guys,

I am currently working on my program to click on the listview items. I'm using listview mouseclick event to click on each listview item, I would like to know how I can get the messagebox to display to let me know that the subitems get remove in the label when I click on same checkboxes after when I add the subitems in the label?

Here's the code:

Private Sub listView1_MouseClick(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs)
	 Dim item As String = listView1.HitTest(e.Location).Item.SubItems(1).Text
	 Dim a() As String = Nothing
	 a = label1.Text.Split(","c)

	If label1.Text = "" Then
	    label1.Text = item
	Else
	    If checkeditem.Checked = False Then
		 MessageBox.Show(a(j).Trim())
		 label3.Text &= ", " & item
	    Else
	         If Not(label3.Text.Contains(item)) Then
		     MessageBox.Show("add it")
	         Else
		     MessageBox.Show("remove it")
	         End If
	    End If
	End If
End Sub

Any advice would be much appreciated

Thanks,
PillKilla