Input string incorrect format
<p>I need help, I'm getting error: Input string had an incorrect format.
Thanks in advance.</p>

<pre><code>FORM2.CS:

    public void loadClient(object source, System.Timers.ElapsedEventArgs e)
    {
        Form1 f1 = new Form1();
        client = Client.GetClients()[0];
        short port = short.Parse(f1.returnTBOX4().Text);
        client.Login.SetOT(f1.returnTBOX3().Text, port);
    }


FORM1.CS:

    public TextBox returnTBOX1()
    {
        return textBox1;
    }

    public TextBox returnTBOX2()
    {
        return textBox2;
    }

    public TextBox returnTBOX3()
    {
        return textBox3;
    }

    public TextBox returnTBOX4()
    {
        return textBox4;
    }
</code></pre>
