/// <summary>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached. The Parameter
/// property is typically used to configure the page.</param>
protected async override void OnNavigatedTo(NavigationEventArgs e)
{
categoryName = e.Parameter as string;
Title.Text = Constants.UpperInitialChar(categoryName);
loadingProgressRing.IsActive = true;
/****** 这里是所有推荐课程的搜索 ***/
if (categoryName.Equals("Recommendation"))
{
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));
categoryCourses = new StoreData();
foreach (var c in recCourses)
{
categoryCourses.AddCourse(Constants.CourseRec2Course(c));
}
dataCategory = categoryCourses.GetSingleGroupByCategoryTitle(categoryName);
cvs1.Source = dataCategory;
loadingProgressRing.IsActive = false;
//courseDsq = (DataServiceQuery<COURSE_AVAIL>)(from course in ctx.COURSE_AVAIL
// where course.ID > 5
// select course);
//courseDsq.BeginExecute(OnRecommendationMannualCoursesComplete, null);
}
else
{
if (Constants.CategoryNameList.Contains(categoryName))
{
courseDsq = (DataServiceQuery <COURSE_AVAIL>)(from course_avail in ctx.COURSE_AVAIL
where course_avail.CATE_NAME == categoryName
select course_avail);
courseDsq.BeginExecute(OnCategoryCoursesComplete, null);
}
else
{
recDsq = (DataServiceQuery <COURSE_RECO_AVAIL>)(from re in ctx.COURSE_RECO_AVAIL
where re.RECO_TITLE == categoryName
select re);
recDsq.BeginExecute(OnRecommendationCoursesComplete, null);
}
}
UserProfileBt.DataContext = Constants.User;
}
/// <summary>
/// Gets all learned.
/// </summary>
public async static void GetAllLearned()
{
if (LearnedCourses == null)
{
LearnedCourses = new List <COURSE_AVAIL>();
CloudEDUEntities ctx = new CloudEDUEntities(new Uri(Constants.DataServiceURI));
TaskFactory <IEnumerable <COURSE_AVAIL> > tf = new TaskFactory <IEnumerable <COURSE_AVAIL> >();
IEnumerable <COURSE_AVAIL> attends = await tf.FromAsync(ctx.BeginExecute <COURSE_AVAIL>(
new Uri("/GetAllCoursesAttendedByCustomer?customer_id=" + Constants.User.ID, UriKind.Relative), null, null),
iar => ctx.EndExecute <COURSE_AVAIL>(iar));
foreach (var ca in attends)
{
LearnedCourses.Add(ca);
}
}
}
/// <summary>
/// Called when [delete note complete].
/// </summary>
/// <param name="result">The result.</param>
private void OnDeleteNoteComplete(IAsyncResult result)
{
try
{
bool res = ctx.EndExecute <bool>(result).FirstOrDefault();
if (res)
{
ShowMessageDialog("Delete sucessfully!");
}
else
{
ShowMessageDialog("Delete error.22");
}
}
catch
{
ShowMessageDialog("Network connection error.23");
}
}
/// <summary>
/// Called when [customer save change].
/// </summary>
/// <param name="result">The result.</param>
private async void OnCustomerSaveChange(IAsyncResult result)
{
try
{
ctx.EndSaveChanges(result);
Constants.User = new User(changedCustomer);
//Constants.User = new User(changedCustomer);
string Uri = "/AddDBLog?opr='ChangeProfile'&msg='" + Constants.User.NAME + "'";
try
{
TaskFactory <IEnumerable <bool> > tf = new TaskFactory <IEnumerable <bool> >();
IEnumerable <bool> resulta = await tf.FromAsync(ctx.BeginExecute <bool>(new Uri(Uri, UriKind.Relative), null, null), iar => ctx.EndExecute <bool>(iar));
}
catch
{
}
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
Frame.GoBack();
});
}
catch
{
ShowMessageDialog("On customer save change");
//Network Connection error.
}
}
/// <summary>
/// Buys the course.
/// </summary>
/// <param name="bt">The bt.</param>
/// <param name="courseInfo">The course information.</param>
private async void BuyCourse(Button bt, List <Object> courseInfo)
{
bool isToBuy = false;
bool isHaveBuy = false;
var buySure = new MessageDialog("Are you sure to buy this course?", "Buy Course");
buySure.Commands.Add(new UICommand("Yes", (command) =>
{
isToBuy = true;
}));
buySure.Commands.Add(new UICommand("No", (command) =>
{
isToBuy = false;
return;
}));
await buySure.ShowAsync();
if (isToBuy)
{
try
{
string uri = "/EnrollCourse?customer_id=" + Constants.User.ID + "&course_id=" + course.ID;
TaskFactory <IEnumerable <int> > tf = new TaskFactory <IEnumerable <int> >();
IEnumerable <int> code = await tf.FromAsync(ctx.BeginExecute <int>(new Uri(uri, UriKind.Relative), null, null), iar => ctx.EndExecute <int>(iar));
isHaveBuy = true;
if (code.FirstOrDefault() != 0)
{
isHaveBuy = false;
var buyError = new MessageDialog("You don't have enough money. Please contact Scott Zhao.", "Buy Failed");
buyError.Commands.Add(new UICommand("Close"));
await buyError.ShowAsync();
return;
}
}
catch
{
ShowMessageDialog("Network connection error1!");
return;
}
}
if (isHaveBuy)
{
var buyOkMsg = new MessageDialog("Do you want to start learning?", "Buy successfully");
buyOkMsg.Commands.Add(new UICommand("Yes", (command) =>
{
courseInfo.Add("attending");
Frame.Navigate(typeof(Coursing), courseInfo);
}));
buyOkMsg.Commands.Add(new UICommand("No", (command) =>
{
bt.Content = "Attend";
}));
await buyOkMsg.ShowAsync();
}
}
/// <summary>
/// Sets the attend teach number.
/// </summary>
public async void SetAttendTeachNumber()
{
try
{
ctx = new CloudEDUEntities(new Uri(Constants.DataServiceURI));
teachDsq = (DataServiceQuery <COURSE_AVAIL>)(from course in ctx.COURSE_AVAIL
where course.TEACHER_NAME == this.NAME
select course);
TaskFactory <IEnumerable <COURSE_AVAIL> > tf = new TaskFactory <IEnumerable <COURSE_AVAIL> >();
IEnumerable <COURSE_AVAIL> attends = await tf.FromAsync(ctx.BeginExecute <COURSE_AVAIL>(
new Uri("/GetAllCoursesAttendedByCustomer?customer_id=" + this.ID, UriKind.Relative), null, null),
iar => ctx.EndExecute <COURSE_AVAIL>(iar));
ATTEND_COUNT = attends.Count();
IEnumerable <COURSE_AVAIL> teaches = await tf.FromAsync(teachDsq.BeginExecute(null, null), iar => teachDsq.EndExecute(iar));
TEACH_COUNT = teaches.Count();
}
catch
{
ShowMessageDialog("Set Attend Teach Number ");
}
}
/// <summary>
/// Called when [upload course complete].
/// </summary>
/// <param name="result">The result.</param>
private void OnUploadCourseComplete(IAsyncResult result)
{
ctx.EndExecute(result);
}
/// <summary>
/// Handles the 1 event of the LogoutButton_Click control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="RoutedEventArgs"/> instance containing the event data.</param>
private async void LogoutButton_Click_1(object sender, RoutedEventArgs e)
{
((Frame)Window.Current.Content).Navigate(typeof(Login.LoginSel));
string courseUplaodUri = "/AddDBLog?opr='Logout'&msg='" + Constants.User.NAME + "'";
//ctx.UpdateObject(c);
CloudEDUEntities ctx = new CloudEDUEntities(new Uri(Constants.DataServiceURI));
try
{
TaskFactory <IEnumerable <bool> > tf = new TaskFactory <IEnumerable <bool> >();
IEnumerable <bool> result = await tf.FromAsync(ctx.BeginExecute <bool>(new Uri(courseUplaodUri, UriKind.Relative), null, null), iar => ctx.EndExecute <bool>(iar));
}
catch
{
}
}
/// <summary>
/// Gets the learned percentage.
/// </summary>
private async void getLearnedPercentage()
{
double percent;
string uri2 = "/CoursePercentByCustomer?customer_id=" + Constants.User.ID + "&course_id=" + course.ID;
TaskFactory <IEnumerable <double> > tf = new TaskFactory <IEnumerable <double> >();
IEnumerable <double> percentages = await tf.FromAsync(ctx.BeginExecute <double>(new Uri(uri2, UriKind.Relative), null, null), iar => ctx.EndExecute <double>(iar));
percent = percentages.FirstOrDefault();
FinishPercentage.Text = "Finished " + percent * 100 + "%";
}
/// <summary>
/// Called when [customer save change].
/// </summary>
/// <param name="result">The result.</param>
private async void OnCustomerSaveChange(IAsyncResult result)
{
try
{
ctx.EndSaveChanges(result);
string Uri = "/AddDBLog?opr='SignUp'&msg='" + c.NAME + "'";
//ctx.UpdateObject(c);
try
{
TaskFactory <IEnumerable <bool> > tf = new TaskFactory <IEnumerable <bool> >();
IEnumerable <bool> resulta = await tf.FromAsync(ctx.BeginExecute <bool>(new Uri(Uri, UriKind.Relative), null, null), iar => ctx.EndExecute <bool>(iar));
}
catch
{
}
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
Frame.Navigate(typeof(Login));
});
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Msg: {0}\nInnerExp:{1}\nStackTrace: {2} ",
e.Message, e.InnerException, e.StackTrace);
ShowMessageDialog();
//Network Connection error.
}
}
/// <summary>
/// Handles the Click event of the LoginButton control.
/// </summary>
/// <param name="sender">The source of the event.</param>
/// <param name="e">The <see cref="RoutedEventArgs"/> instance containing the event data.</param>
private async void LoginButton_Click(object sender, RoutedEventArgs e)
{
InputUsername.IsEnabled = InputPassword.IsEnabled = LoginButton.IsEnabled = SignUpButton.IsEnabled = false;
//login
if (InputUsername.Text.Equals(emptyUsername) || InputPassword.Password.Equals(string.Empty))
{
var messageDialog = new MessageDialog("Check your input!");
await messageDialog.ShowAsync();
return;
}
//InputUsername.Text
if (!Constants.isUserNameAvailable(InputUsername.Text))
{
var messageDialog = new MessageDialog("Check your input! Username can only contain 1-9 a-z and _");
await messageDialog.ShowAsync();
return;
}
//try
//{
// TaskFactory<IEnumerable<CUSTOMER>> tf = new TaskFactory<IEnumerable<CUSTOMER>>();
// customerDsq = (DataServiceQuery<CUSTOMER>)(from user in ctx.CUSTOMER where user.NAME == InputUsername.Text select user);
// IEnumerable<CUSTOMER> cs = await tf.FromAsync(customerDsq.BeginExecute(null, null), iar => customerDsq.EndExecute(iar));
// csl = new List<CUSTOMER>(cs);
//}
//catch (Exception ex)
//{
// System.Diagnostics.Debug.WriteLine("login request error: {0}", ex.Message);
// ShowMessageDialog();
//}
bool isLogined = false;
try
{
foreach (CUSTOMER c in Constants.csl)
{
if (c.NAME == InputUsername.Text)
{
if (c.PASSWORD == Constants.ComputeMD5(InputPassword.Password))
{
//login success
//CUSTOMER
//Constants.User = c;
System.Diagnostics.Debug.WriteLine(c.PASSWORD);
string Uri;
//User
if (!c.ALLOW)
{
var notAllowed = new MessageDialog("The User is forbidden!");
await notAllowed.ShowAsync();
Uri = "/AddDBLog?opr='TryLoginFailBecauseUserForbiddened'&msg='" + c.NAME + "'";
//ctx.UpdateObject(c);
try
{
TaskFactory <IEnumerable <bool> > tf = new TaskFactory <IEnumerable <bool> >();
IEnumerable <bool> result = await tf.FromAsync(ctx.BeginExecute <bool>(new Uri(Uri, UriKind.Relative), null, null), iar => ctx.EndExecute <bool>(iar));
}
catch
{
}
return;
}
Constants.Save <bool>("AutoLog", (bool)CheckAutoLogin.IsChecked);
Constants.User = new User(c);
isLogined = true;
System.Diagnostics.Debug.WriteLine("login success");
Uri = "/AddDBLog?opr='Login'&msg='" + Constants.User.NAME + "'";
//ctx.UpdateObject(c);
try
{
TaskFactory <IEnumerable <bool> > tf = new TaskFactory <IEnumerable <bool> >();
IEnumerable <bool> result = await tf.FromAsync(ctx.BeginExecute <bool>(new Uri(Uri, UriKind.Relative), null, null), iar => ctx.EndExecute <bool>(iar));
}
catch
{
}
Frame.Navigate(typeof(Courstore));
// navigate
}
}
}
}
catch (Exception exp)
{
System.Diagnostics.Debug.WriteLine("Msg: {0}\nInnerExp:{1}\nStackTrace: {2} ",
exp.Message, exp.InnerException, exp.StackTrace);
ShowMessageDialog();
}
// login fail
if (isLogined)
{
return;
}
var msgDialog = new MessageDialog("Username Or Password is wrong");
await msgDialog.ShowAsync();
InputUsername.IsEnabled = InputPassword.IsEnabled = LoginButton.IsEnabled = SignUpButton.IsEnabled = true;
}
/// <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>
/// Invoked when this page is about to be displayed in a Frame.
/// </summary>
/// <param name="e">Event data that describes how this page was reached. The Parameter
/// property is typically used to configure the page.</param>
protected async override void OnNavigatedTo(NavigationEventArgs e)
{
SetAllTextBlock();
allCourses = new List <Course>();
loadingProgressRing.IsActive = true;
var borders = from b in topograph.Children.OfType <Border>()
select b;
List <string> courseNameList = new List <string>();
List <CloudEDU.Common.Constants.CourseAvaiStates> courseStatesList = new List <Constants.CourseAvaiStates>();
foreach (Border border in borders)
{
TextBlock textBlock = border.Child as TextBlock;
string courseShowName = textBlock.Text.Replace("\n", " ");
courseNameList.Add(textBlock.Text);
courseStatesList.Add(Constants.DepCourse.GetCourseLearnedState(courseShowName));
}
SetAllCoursesStates(courseNameList, courseStatesList);
SetCourseState("Compute\nArchitecture", Constants.CourseAvaiStates.NotLearnedDisable);
try
{
teachDsq = (DataServiceQuery <COURSE_AVAIL>)(from course in ctx.COURSE_AVAIL
where course.TEACHER_NAME == Constants.User.NAME
select course);
TaskFactory <IEnumerable <COURSE_AVAIL> > tf = new TaskFactory <IEnumerable <COURSE_AVAIL> >();
IEnumerable <COURSE_AVAIL> attends = await tf.FromAsync(ctx.BeginExecute <COURSE_AVAIL>(
new Uri("/GetAllCoursesAttendedByCustomer?customer_id=" + Constants.User.ID, UriKind.Relative), null, null),
iar => ctx.EndExecute <COURSE_AVAIL>(iar));
IEnumerable <COURSE_AVAIL> teaches = await tf.FromAsync(teachDsq.BeginExecute(null, null), iar => teachDsq.EndExecute(iar));
DataServiceQuery <COURSE_AVAIL> allCoursesDsq = (DataServiceQuery <COURSE_AVAIL>)(from c in ctx.COURSE_AVAIL
select c);
IEnumerable <COURSE_AVAIL> allCoursesEnum = await tf.FromAsync(allCoursesDsq.BeginExecute(null, null), iar => allCoursesDsq.EndExecute(iar));
foreach (var c in allCoursesEnum)
{
Course tmpCourse = Constants.CourseAvail2Course(c);
allCourses.Add(tmpCourse);
}
courseData = new StoreData();
foreach (var c in attends)
{
Course tmpCourse = Constants.CourseAvail2Course(c);
tmpCourse.IsBuy = true;
tmpCourse.IsTeach = false;
courseData.AddCourse(tmpCourse);
}
foreach (var c in teaches)
{
Course tmpCourse = Constants.CourseAvail2Course(c);
tmpCourse.IsTeach = true;
tmpCourse.IsBuy = false;
courseData.AddCourse(tmpCourse);
}
dataCategory = courseData.GetGroupsByAttendingOrTeaching();
cvs1.Source = dataCategory;
UserProfileBt.DataContext = Constants.User;
}
catch
{
ShowMessageDialog("on navi to");
}
loadingProgressRing.IsActive = false;
}