ATMLCommonLibrary.controls.document.LegalDocumentListControl.ControlsToData C# (CSharp) Метод

        private void ControlsToData()
        {
            if (lvList.Items.Count > 0)
            {
                if (_legalDocuments == null)
                    _legalDocuments = new HardwareItemDescriptionLegalDocuments();

                var documents = new Document[lvList.Items.Count];
                var types =
                    new HardwareItemDescriptionLegalDocumentsItemsChoiceType[lvList.Items.Count];
                int idx = 0;
                foreach (ListViewItem lvi in lvList.Items)
                {
                    var document = (Document) lvi.Tag;
                    if (document != null)
                    {
                        documents[idx] = document;
                        types[idx++] = document.LegalDocumentType;
                    }
                }

                if (documents.Length == 0)
                    documents = null;
                if (types.Length == 0)
                    types = null;
                _legalDocuments.Items = documents;
                _legalDocuments.ItemsElementName = types;
            }
            else
            {
                _legalDocuments = null;
            }
        }