VS 2010 [RESOLVED] label1.backcolor = color.azure does not give error nor change the background colour

Label1.BackColor = Color.Azure

Imports System.Collections
Imports System.Drawing
 
Public Class Form
    Dim iLast As Integer = -1
    Dim Lbls As New List(Of Label)
 
    Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load
 
        ListBox1.Items.Clear()
        Lbls.Clear()
        For Each ctrl As Control In Me.Controls
            If ctrl.Name.Contains("Label") Then
                Lbls.Add(CType(ctrl, Label))
            End If
        Next
        ListBox1.Items.Add("direct from load")
        For ptr As Integer = 0 To Lbls.Count - 1
            ListBox1.Items.Add(Lbls(ptr).Name)
        Next
        Lbls.Sort(Function(x, y) (x.Name.CompareTo(y.Name)))
        ListBox1.Items.Add("after sort")
        For ptr As Integer = 0 To Lbls.Count - 1
            ListBox1.Items.Add(Lbls(ptr).Name)
        Next
        For ptr As Integer = 0 To Lbls.Count - 1
            Lbls(ptr).Text = ptr.ToString
        Next
        lblInfo.BackColor = Color.Azure
    End Sub
 
    Private Sub NumericUpDown1_ValueChanged(sender As System.Object, e As System.EventArgs) Handles NumericUpDown1.ValueChanged
        If iLast <> -1 Then
            Lbls(iLast).BackColor = Color.FromKnownColor(KnownColor.Control)
            Lbls(CInt(NumericUpDown1.Value)).BackColor = Color.Azure
        End If
        iLast = CInt(NumericUpDown1.Value)
    End Sub
End Class