public async Task <ObservableCollection <CatalogBrand> > GetCatalogBrandAsync()
{
IEnumerable <CatalogBrand> brands = await catalogApi.GetCatalogBrandAsync();
if (brands != null)
{
return(new ObservableCollection <CatalogBrand>(brands));
}
else
{
return(new ObservableCollection <CatalogBrand>());
}
}
