How to parse TextBox to arguments to run a exe : <p>I need to parse login and password from textbox to arguments to run a exe</p>

<pre><code> private void button1_Click(object sender, EventArgs e)
    {


        string username = textBox1.Text;
        string password = textBox2.Text;

        Process p = new Process();
        p.StartInfo.FileName = "Main.exe";
        p.StartInfo.Arguments = "-IFZUpdatedOk_K0 -gna -login @username -pwd  @password";
        p.Start();
        p.WaitForExit();


     //   System.Diagnostics.Process.Start("Main.exe", " -IFZUpdatedOk_K0 -gna -login email@email.com -pwd mypassword");
    }``
</code></pre>
