static void initWrappers()
{
// Initialize the wrappers used for this sample.
ctx = ws.getContextWrapper();
crs = ws.getCourseWrapper();
crm = ws.getCourseMembershipWrapper();
usr = ws.getUserWrapper();
}
/// <inheritdoc/>
public override byte[] CourseToByteArray(ICourse course)
{
CourseWrapper wrapper = new CourseWrapper(course);
JObject jObject = JObject.FromObject(wrapper, JsonSerializer.Create(CourseSerializerSettings));
jObject.Add("$serializerVersion", Version);
// This line is required to undo the changes applied to the course.
wrapper.GetCourse();
return(new UTF8Encoding().GetBytes(jObject.ToString()));
}
/// <inheritdoc/>
public override ICourse CourseFromByteArray(byte[] data)
{
string stringData = new UTF8Encoding().GetString(data);
JObject dataObject = JsonConvert.DeserializeObject <JObject>(stringData, CourseSerializerSettings);
// Check if course was serialized with version 1
int version = dataObject.GetValue("$serializerVersion").ToObject <int>();
if (version == 1)
{
return(base.CourseFromByteArray(data));
}
CourseWrapper wrapper = Deserialize <CourseWrapper>(data, CourseSerializerSettings);
return(wrapper.GetCourse());
}
public CourseContext GetCourse(string courseName, EventHandler onFinishedEventHandler, bool createIfNotFound)
{
CourseWrapper foundCourse;
foundCourse = _courses.FirstOrDefault(c => c.name == courseName);
if (foundCourse == null)
{
foundCourse = new CourseWrapper(courseName);
_courses.Add(foundCourse);
}
if (foundCourse == null)
{
throw new ArgumentNullException();
}
onFinishedEventHandler += foundCourse.releaseHandler;
return(createIfNotFound ? foundCourse.createContext() : foundCourse.context);
}
private async Task OnClicked(CourseWrapper obj)
{
await _navigation.Navigate <CourseViewModel, CourseDTO>(obj.Model);
}