Visual Basic

Public Class UserControl1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If Button1.Text = "0" Then
            Button1.Text = "1"
        ElseIf Button1.Text = "1" Then
            Button1.Text = "0"
        End If
    End Sub
End Class

If Button1.Text = "0" Then
    Button1.Text = "1"
Else
    Button1.Text = "0"
End If

Private Sub TestButton_MouseDown(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles TestButton.MouseDown
    ChangeButtonText(TestButton)
End Sub

Private Sub TestButton_MouseUp(sender As Object, e As System.Windows.Forms.MouseEventArgs) Handles TestButton.MouseUp
    ChangeButtonText(TestButton)
End Sub

Private Sub ChangeButtonText(ByRef target As Button)
    If target.Text = "0" Then
        target.Text = "1"
    Else
        target.Text = "0"
    End If
End Sub

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        If Button1.Text = "0" Then
            Button1.Text = "1"
        Else
            Button1.Text = "0"
        End If
    End Sub

If Button1.Text.Replace(" ","") = "1" then
 Button1.Text = "0"
Elseif Button1.Text.Replace(" ","") = "0" then
 Button1.Text = "1"
End if

Private Sub updateUI()
    If Me.InvokeRequired Then
        Me.Invoke(New MethodInvoker(AddressOf updateUI))
    Else
        Me.Update()
    End If
End Sub

FlowLayoutPanel1.Controls.SetChildIndex(Button1, 0)

Private Sub AddTestTweet(ByVal tweet As TwitterStatus)
     If (Me.FlowLayoutPanel1.InvokeRequired) Then
         Me.FlowLayoutPanel1.Invoke(New AddTestTweetDelegate(AddressOf AddTestTweet), tweet)
     Else
         Console.WriteLine(String.Format("New tweet: @{0}: {1}", tweet.User.ScreenName, tweet.Text))
         Me.FlowLayoutPanel1.Controls.Add(New TweetTimelineControl(tweet))

     End If
 End Sub

Private Sub NewTweet(ByVal tweet As TwitterStatus)
       On Error Resume Next
       AddTestTweet(tweet)
End Sub

Public Class TweetTimelineControl
    Public Sub New(ByVal status As TwitterStatus)
        Me.InitializeComponent()

        Me.userPictureBox.LoadAsync(status.User.ProfileImageLocation)
        Me.UserNameLabel.Text = status.User.ScreenName
        Me.Label2.Text = status.CreatedDate.ToShortDateString()
        Me.DateLabel.Text = status.CreatedDate.ToShortTimeString()
        Me.TextLabel.Text = status.Text
        Me.Label1.Text = "Number Of Retweets: " & status.RetweetCountString
    End Sub
End Class

   Private Sub AddTestTweet(ByVal tweet As TwitterStatus)
        If (Me.FlowLayoutPanel1.InvokeRequired) Then
            Me.FlowLayoutPanel1.Invoke(New AddTestTweetDelegate(AddressOf AddTestTweet), tweet)
        Else
            Console.WriteLine(String.Format("New tweet: @{0}: {1}", tweet.User.ScreenName, tweet.Text))
            Me.FlowLayoutPanel1.Controls.Add(New TweetTimelineControl(tweet))
            
' Me.FlowLayoutPanel1.Controls.SetChildIndex(<the name of your control here, i think its somewhere in your "tweet" object or wherever you add the name property to your control>,<index depending on the settings you put at your control its probably 0 or FlowLayoutPanel1.controls.count>)
        End If
    End Sub