public FormTDS() { InitializeComponent(); eviii.EventiTeatroDelSegno = new List <EventoSingolo>(1); grab(); Controls.Add(dataGridView1); var evTemp = Eventii.XMLFTP(); if (evTemp != null) { eviii = evTemp; } ricarica(); dataGridView1.ReadOnly = true; dataGridView1.Click += DataGridView1_Click; dataGridView1.CurrentCellChanged += DataGridView1_CurrentCellChanged; dataGridView1.BackgroundColor = Color.AliceBlue; }