Contador de Células 1.0 by @LucasVinícius

Public Class Form1

    Private Sub TextBox1_TextChanged(sender As Object, e As EventArgs) Handles TextBox1.TextChanged
        Label3.Text = TextBox1.Text.Length
        'Label4.Text = "CÉLULAS: " + TextBox1.Text.Length
        'Label4.Text = "CÉLULAS: " + TextBox1.Text.Length
        'Label4.Text = "CELULAS:" + TextBox1.Text.Length
    End Sub
End Class