private void listBox1_DoubleClick(object sender, EventArgs e) { var item = listBox1.SelectedItem; if (item != null) { var itemArray = item.ToString().Split(':'); var id = Convert.ToInt32(itemArray[0]); var workItem = workItemService.GetbyId(id); textBox1.Text = workItem.Title; textBox2.Text = workItem.Description; } }