private void addDev_Click(object sender, EventArgs e)
{
var selForm = new DeviceTypeSelectForm();
selForm.ShowDialog();
BaseDevice dev = selForm.CreatedDevice;
selForm.Dispose();
var attr = dev.GetComponentAttribute();
devices.Items.Add(new ListViewItem()
{
Text = attr.UserFriendlyName, Tag = dev, ImageKey = dev.GetType().Name.ToLower()
});
}