DfBAdminToolkit.View.DevicesView.ObjectListView_DeviceList_ItemCheck C# (CSharp) Method

        private void ObjectListView_DeviceList_ItemCheck(object sender, ItemCheckEventArgs e)
        {
            // first of all, if user tries to check mark item which files were NOT loaded yet,
            // show warning and don't allow user to check mark
            ObjectListView olv = sender as ObjectListView;
            DeviceListViewItemModel item = olv.GetModelObject(e.Index) as DeviceListViewItemModel;
            if (item != null)
            {
                if (string.IsNullOrEmpty(item.DeviceName))
                {
                    if (!_suppressErrorMessage)
                    {
                        MessageBoxUtil.ShowError(this, ErrorMessages.MISSING_FILES);
                    }
                    e.NewValue = CheckState.Unchecked;
                }
            }
        }