public static Task[] LoadTasks()
{
Task[] tasks = null;
try {
IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication();
if (storage.FileExists("Tasks.xml")) {
using (Stream tasksStream = storage.OpenFile("TaskList.xml", FileMode.Open)) {
DataContractSerializer reader = new DataContractSerializer(typeof(TaskDTO[]));
TaskDTO[] taskObjects = (TaskDTO[])reader.ReadObject(tasksStream);
tasks = new Task[taskObjects.Length];
for (int i = 0; i < taskObjects.Length; i++) {
tasks[i] = new Task() {
Name = taskObjects[i].Name,
DueDate = taskObjects[i].DueDate,
IsCompleted = taskObjects[i].IsCompleted
};
}
IPredicate<Task> filter = new AllTasksFilter();
foreach (Task task in tasks) {
task.Filter(filter);
}
}
}
}
catch {
}
return tasks;
}
public static void SaveTasks(Task[] tasks)
{
try {
IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication();
using (Stream tasksStream = storage.OpenFile("Tasks.xml", FileMode.Create)) {
DataContractSerializer writer = new DataContractSerializer(typeof(Task[]));
writer.WriteObject(tasksStream, tasks);
tasksStream.Flush();
}
}
catch {
}
}
public static void SaveTasks(Task[] tasks)
{
try {
IsolatedStorageFile storage = IsolatedStorageFile.GetUserStoreForApplication();
using (Stream tasksStream = storage.OpenFile("TaskList.xml", FileMode.Create)) {
DataContractSerializer writer = new DataContractSerializer(typeof(TaskDTO[]));
TaskDTO[] taskObjects = new TaskDTO[tasks.Length];
for (int i = 0; i < tasks.Length; i++) {
taskObjects[i] = new TaskDTO() {
Name = tasks[i].Name,
DueDate = tasks[i].DueDate,
IsCompleted = tasks[i].IsCompleted
};
}
writer.WriteObject(tasksStream, taskObjects);
tasksStream.Flush();
}
}
catch {
}
}
public void AddTask()
{
_tasks.Add(NewTask);
TaskStorage.SaveTasks(_tasks.ToArray());
_newTask = null;
RaisePropertyChanged("NewTask");
}
public EditTaskFormModel EditTask(Task task)
{
EditTaskFormModel model = new EditTaskFormModel();
model.Initialize(task);
model.Completed += delegate(object sender, EventArgs e) {
if (model.IsCommitted) {
TaskStorage.SaveTasks(_tasks.ToArray());
}
};
return model;
}
public void DeleteTask(Task task)
{
_tasks.Remove(task);
TaskStorage.SaveTasks(_tasks.ToArray());
}
public void CompleteTask(Task task)
{
task.IsCompleted = !task.IsCompleted;
TaskStorage.SaveTasks(_tasks.ToArray());
}
public void Initialize(Task task)
{
_originalTask = task;
_task = task.Clone();
}
public void Copy(Task task)
{
Name = task.Name;
DueDate = task.DueDate;
IsCompleted = task.IsCompleted;
}
