private void InitializeCollection(ProductivityDefinitionCollection definitions, IExportLoader exportLoader,
                                   string applicationCode)
 {
     foreach (ProductivityDefinition definition in definitions)
     {
         Productivity item = new Productivity(definition, exportLoader, applicationCode);
         Add(item.Definition.Uid, item);
     }
 }
 public ProductivityCollection(ProductivityDefinitionCollection definitions, IExportLoader exportLoader,
                               string applicationCode)
 {
     InitializeCollection(definitions, exportLoader, applicationCode);
 }