public void ExportSelected()
        {
            if (documentsContainer.CountSelectedDocuments > 0)
            {
                SaveFileDialog sfd = new SaveFileDialog();
                sfd.CheckPathExists = true;
                sfd.Filter          = "Archivos JSON (*.json)|*.json|Archivos XML (*.xml)|*.xml";

                if (sfd.ShowDialog().Value)
                {
                    var documents       = documentsContainer.GetSelectedDocuments();
                    var documentWrapper = new CollectionsWrapperDO();
                    var collection      = new CollectionDO();

                    collection.CollectionName = null;

                    foreach (BsonValue doc in documents)
                    {
                        collection.Documents.Add(JsonSerializer.Serialize(doc));
                    }

                    documentWrapper.Collections.Add(collection);
                    DataOperationsService.ExportData(documentWrapper, sfd.FileName);
                }
            }
        }
        public void ImportSelected()
        {
            OpenFileDialog ofd = new OpenFileDialog();

            ofd.CheckPathExists = true;
            ofd.CheckFileExists = true;
            ofd.Filter          = "Archivos JSON (*.json)|*.json|Archivos XML (*.xml)|*.xml";

            if (ofd.ShowDialog().Value)
            {
                DataOperationsService.ImportData(ofd.FileName, DataOperations.ImportDocuments);
            }
        }
        public void ExportSelected()
        {
            if (dgCollections.SelectedItems.Count > 0)
            {
                SaveFileDialog sfd = new SaveFileDialog();
                sfd.CheckPathExists = true;
                sfd.Filter          = "Archivos JSON (*.json)|*.json|Archivos XML (*.xml)|*.xml";

                if (sfd.ShowDialog().Value)
                {
                    var collections = new string[dgCollections.SelectedItems.Count];
                    dgCollections.SelectedItems.CopyTo(collections, 0);
                    DataOperationsService.ExportData(collections, sfd.FileName);
                }
            }
        }