/// <summary>
/// Invoked when all uplaod button is clicked.
/// </summary>
/// <param name="sender">The all upload button clicked.</param>
/// <param name="e">Event data that describes how the click was initiated.</param>
/// <exception cref="InvalidDataException">
/// </exception>
private async void allUploadButton_Click(object sender, RoutedEventArgs e)
{
if (!CheckCourseInfomation())
{
ShowMessageDialog("Format error4! Please check your upload infomation.");
return;
}
addLessonButton.IsEnabled = false;
allUploadButton.IsEnabled = false;
resetUploadButton.IsEnabled = false;
uploadProgressBar.Visibility = Visibility.Visible;
try
{
resourceDic = new Dictionary <string, int>(Constants.ResourceType.Count);
for (int i = 0; i < Constants.ResourceType.Count; ++i)
{
DataServiceQuery <RES_TYPE> dps = (DataServiceQuery <RES_TYPE>)(from res_type in ctx.RES_TYPE
where res_type.DESCRIPTION.Trim() == Constants.ResourceType[i]
select res_type);
TaskFactory <IEnumerable <RES_TYPE> > tf = new TaskFactory <IEnumerable <RES_TYPE> >();
RES_TYPE resID = (await tf.FromAsync(dps.BeginExecute(null, null), iar => dps.EndExecute(iar))).FirstOrDefault();
resourceDic.Add(Constants.ResourceType[i], resID.ID);
}
}
catch
{
ShowMessageDialog("Network connection error5!");
return;
}
string courseUplaodUri = "/CreateCourse?teacher_id=" + Constants.User.ID
+ "&title='" + courseNameTextBox.Text
+ "'&intro='" + CourseDescriptionTextBox.Text
+ "'&category_id=" + (categoryComboBox.SelectionBoxItem as CATEGORY).ID
+ "&price=" + Convert.ToDecimal(priceTextBox.Text)
+ "&pg_id=" + (pgComboBox.SelectionBoxItem as PARENT_GUIDE).ID
+ "&icon_url='" + toBeUploadCourse.ImageUri + "'";
int newCourseID = 0;
try
{
TaskFactory <IEnumerable <decimal> > tf = new TaskFactory <IEnumerable <decimal> >();
IEnumerable <decimal> courses = await tf.FromAsync(ctx.BeginExecute <decimal>(new Uri(courseUplaodUri, UriKind.Relative), null, null), iar => ctx.EndExecute <decimal>(iar));
newCourseID = Convert.ToInt32(courses.FirstOrDefault());
if (newCourseID == 0)
{
throw new InvalidDataException();
}
}
catch
{
ShowMessageDialog("Course upload error6! Please check your network.");
return;
}
for (int i = 0; i < allLessons.Count; ++i)
{
Lesson newLesson = allLessons[i];
string lessonUploadUri = "/CreateLesson?course_id=" + newCourseID
+ "&content='" + newLesson.Content
+ "'&title='" + newLesson.Title +
"'&number=" + newLesson.Number;
int newLessonID = 0;
try
{
TaskFactory <IEnumerable <decimal> > tf = new TaskFactory <IEnumerable <decimal> >();
IEnumerable <decimal> lessons = await tf.FromAsync(ctx.BeginExecute <decimal>(new Uri(lessonUploadUri, UriKind.Relative), null, null), iar => ctx.EndExecute <decimal>(iar));
newLessonID = Convert.ToInt32(lessons.FirstOrDefault());
if (newLessonID == 0)
{
throw new InvalidDataException();
}
}
catch
{
ShowMessageDialog("Lesson error7! Please check your network.");
return;
}
try
{
List <Resource> docsRes = allLessons[i].GetDocList();
List <Resource> audiosRes = allLessons[i].GetAudioList();
List <Resource> videosRes = allLessons[i].GetVideoList();
for (int j = 0; j < docsRes.Count; ++j)
{
Resource r = docsRes[j];
RESOURCE newRes = new RESOURCE();
newRes.LESSON_ID = newLessonID;
newRes.TYPE = resourceDic["DOCUMENT"];
newRes.URL = r.Uri;
newRes.TITLE = r.Title;
ctx.AddToRESOURCE(newRes);
}
for (int j = 0; j < audiosRes.Count; ++j)
{
Resource r = audiosRes[j];
RESOURCE newRes = new RESOURCE();
newRes.LESSON_ID = newLessonID;
newRes.TYPE = resourceDic["AUDIO"];
newRes.URL = r.Uri;
newRes.TITLE = r.Title;
ctx.AddToRESOURCE(newRes);
}
for (int j = 0; j < videosRes.Count; ++j)
{
Resource r = videosRes[j];
RESOURCE newRes = new RESOURCE();
newRes.LESSON_ID = newLessonID;
newRes.TYPE = resourceDic["VIDEO"];
newRes.URL = r.Uri;
newRes.TITLE = r.Title;
ctx.AddToRESOURCE(newRes);
}
TaskFactory <DataServiceResponse> tfRes = new TaskFactory <DataServiceResponse>();
DataServiceResponse dsr = await tfRes.FromAsync(ctx.BeginSaveChanges(null, null), iar => ctx.EndSaveChanges(iar));
}
catch
{
ShowMessageDialog("Uplaod error8! Please check your network");
return;
}
}
addLessonButton.IsEnabled = true;
allUploadButton.IsEnabled = true;
resetUploadButton.IsEnabled = true;
uploadProgressBar.Visibility = Visibility.Collapsed;
var finishMsg = new MessageDialog("Upload Finish! Please wait the check.", "Congratulation");
finishMsg.Commands.Add(new UICommand("Continue upload", (command) =>
{
ResetPage();
}));
finishMsg.Commands.Add(new UICommand("Back", (command) =>
{
Frame.Navigate(typeof(CourseStore.Courstore));
}));
await finishMsg.ShowAsync();
}