/// <summary>
/// DataServiceQuery callback method to refresh the UI.
/// </summary>
/// <param name="result">Async operation result.</param>
private async void OnCourseAvailComplete(IAsyncResult result)
{
coursesData = new StoreData();
try
{
/************************ 搜索推荐课程 *********************/
TaskFactory<IEnumerable<COURSE_AVAIL>> tfRec = new TaskFactory<IEnumerable<COURSE_AVAIL>>();
IEnumerable<COURSE_AVAIL> recCourses = await tfRec.FromAsync(ctx.BeginExecute<COURSE_AVAIL>(
new Uri("/GetRecommendedCourses?customer_id=" + Constants.User.ID, UriKind.Relative), null, null),
iar => ctx.EndExecute<COURSE_AVAIL>(iar));
//DataServiceQuery<COURSE_AVAIL> recCourseDsq = (DataServiceQuery<COURSE_AVAIL>)(from rc in ctx.COURSE_AVAIL
// where rc.ID > 5
// select rc);
//TaskFactory<IEnumerable<COURSE_AVAIL>> recTF = new TaskFactory<IEnumerable<COURSE_AVAIL>>();
//IEnumerable<COURSE_AVAIL> recCourses = await recTF.FromAsync(recCourseDsq.BeginExecute(null, null), iar => recCourseDsq.EndExecute(iar));
foreach (var c in recCourses)
{
coursesData.AddCourse(Constants.CourseRec2Course(c));
}
/************************ 搜索推荐课程 *********************/
}
catch
{
coursesData = new StoreData();
}
try
{
DataServiceQuery<COURSE_RECO_AVAIL> craDsq = (DataServiceQuery<COURSE_RECO_AVAIL>)(from re in ctx.COURSE_RECO_AVAIL
select re);
TaskFactory<IEnumerable<COURSE_RECO_AVAIL>> tf = new TaskFactory<IEnumerable<COURSE_RECO_AVAIL>>();
IEnumerable<COURSE_RECO_AVAIL> recommendation = await tf.FromAsync(craDsq.BeginExecute(null, null), iar => craDsq.EndExecute(iar));
foreach (var re in recommendation)
{
coursesData.AddCourse(Constants.CourseRecAvail2Course(re));
}
IEnumerable<COURSE_AVAIL> courses = courseDsq.EndExecute(result);
foreach (var c in courses)
{
coursesData.AddCourse(Constants.CourseAvail2Course(c));
}
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
dataCategory = coursesData.GetGroupsByCategory();
cvs1.Source = dataCategory;
(SemanticZoom.ZoomedOutView as ListViewBase).ItemsSource = cvs1.View.CollectionGroups;
loadingProgressRing.IsActive = false;
});
}
catch
{
ShowMessageDialog("on course avail complete");
// Network Connection error.
}
}
/// <summary>
/// DataServiceQuery callback method to refresh the UI.
/// </summary>
/// <param name="result">Async operation result.</param>
private async void OnCourseAvailComplete(IAsyncResult result)
{
coursesData = new StoreData();
try
{
/************************ 搜索推荐课程 *********************/
TaskFactory <IEnumerable <COURSE_AVAIL> > tfRec = new TaskFactory <IEnumerable <COURSE_AVAIL> >();
IEnumerable <COURSE_AVAIL> recCourses = await tfRec.FromAsync(ctx.BeginExecute <COURSE_AVAIL>(
new Uri("/GetRecommendedCourses?customer_id=" + Constants.User.ID, UriKind.Relative), null, null),
iar => ctx.EndExecute <COURSE_AVAIL>(iar));
//DataServiceQuery<COURSE_AVAIL> recCourseDsq = (DataServiceQuery<COURSE_AVAIL>)(from rc in ctx.COURSE_AVAIL
// where rc.ID > 5
// select rc);
//TaskFactory<IEnumerable<COURSE_AVAIL>> recTF = new TaskFactory<IEnumerable<COURSE_AVAIL>>();
//IEnumerable<COURSE_AVAIL> recCourses = await recTF.FromAsync(recCourseDsq.BeginExecute(null, null), iar => recCourseDsq.EndExecute(iar));
foreach (var c in recCourses)
{
coursesData.AddCourse(Constants.CourseRec2Course(c));
}
/************************ 搜索推荐课程 *********************/
}
catch
{
coursesData = new StoreData();
}
try
{
DataServiceQuery <COURSE_RECO_AVAIL> craDsq = (DataServiceQuery <COURSE_RECO_AVAIL>)(from re in ctx.COURSE_RECO_AVAIL
select re);
TaskFactory <IEnumerable <COURSE_RECO_AVAIL> > tf = new TaskFactory <IEnumerable <COURSE_RECO_AVAIL> >();
IEnumerable <COURSE_RECO_AVAIL> recommendation = await tf.FromAsync(craDsq.BeginExecute(null, null), iar => craDsq.EndExecute(iar));
foreach (var re in recommendation)
{
coursesData.AddCourse(Constants.CourseRecAvail2Course(re));
}
IEnumerable <COURSE_AVAIL> courses = courseDsq.EndExecute(result);
foreach (var c in courses)
{
coursesData.AddCourse(Constants.CourseAvail2Course(c));
}
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
dataCategory = coursesData.GetGroupsByCategory();
cvs1.Source = dataCategory;
(SemanticZoom.ZoomedOutView as ListViewBase).ItemsSource = cvs1.View.CollectionGroups;
loadingProgressRing.IsActive = false;
});
}
catch
{
ShowMessageDialog("on course avail complete");
// Network Connection error.
}
}
