public async void FetchClassSummaryAsync()
{
Locator locator = SelectorViewModel.GetLocator();
App.Dispatcher.Invoke(() => IsClassSummariesFetchEnabled = false);
var classes = await HttpClient.GetClassSummariesAsync(locator.Scope, locator.Tag, locator.CYear);
lock (ClassSummaries)
{
App.Dispatcher.Invoke(() =>
{
if (classes == null)
{
State.Message = "加载错误";
}
else
{
ClassSummaries.ReplaceItems(classes);
}
});
}
App.Dispatcher.Invoke(() => IsClassSummariesFetchEnabled = true);
}
public void Handle(ClassCompleted message) => ClassSummaries.Add(message);
