private void OnExecute(Document document)
 {
     ResultSets.Clear();
     try
     {
         IEnumerable <DataTable> results;
         if (string.IsNullOrEmpty(ActiveDocumentSelectedText))
         {
             results = _sqliteService.ExecuteQuery(_activeDocument.Text, _activeDocument.DatabasePath);
         }
         else
         {
             results = _sqliteService.ExecuteQuery(ActiveDocumentSelectedText, _activeDocument.DatabasePath);
         }
         foreach (DataTable table in results)
         {
             ResultSets.Add(table);
         }
     }
     catch (Exception ex)
     {
         WpfMessageBox.ShowDialog("Execution Error", ex.Message, MessageBoxButton.OK, MessageIcon.Error);
     }
 }