[VB] Facebook Posted Used My Token

Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim post As New System.Net.WebClient
        post.Encoding = System.Text.Encoding.UTF8
        post.UploadString("https://graph.facebook.com/me/feed?method=POST&message=" + TextBox1.Text + Nothing, "&access_token=" + TextBox2.Text)
        MessageBox.Show("Bạn Chưa Điền Token Facebook", "Thông Báo")
    End Sub