private void FormMainSShManager_FormClosing(object sender, FormClosingEventArgs e)
 {
     if (this.sshControll != null)
     {
         this.sshControll.close();
         this.sshControll = null;
     }
 }
 public FormMainSShManager()
 {
     InitializeComponent();
     this.sshControll = new clsSshControll();
     resizeForm();
 }