// When page is navigated to set data context to selected item in listType
protected override void OnNavigatedTo(NavigationEventArgs e)
{
// trace data
TraceHelper.AddMessage("TaskList: OnNavigatedTo");
string IDString = "";
string typeString = "";
Guid id;
if (NavigationContext.QueryString.TryGetValue("type", out typeString) == false)
{
// trace page navigation
TraceHelper.StartMessage("TaskList: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
switch (typeString)
{
case "TaskList":
if (NavigationContext.QueryString.TryGetValue("ID", out IDString) == false)
{
// trace page navigation
TraceHelper.StartMessage("TaskList: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
id = new Guid(IDString);
// get the tasklist and make it the datacontext
try
{
taskList = App.ViewModel.TaskLists.Single(tl => tl.ID == id);
SetContext(taskList);
}
catch (Exception ex)
{
// the list isn't found - this can happen when the list we were just
// editing was removed in TaskListEditor, which then goes back to TaskListPage.
// this will send us back to the MainPage which is appropriate.
// trace page navigation
TraceHelper.StartMessage(String.Format("TaskList: Navigate back (exception: {0})", ex.Message));
// navigate back
NavigationService.GoBack();
return;
}
break;
case "Tag":
if (NavigationContext.QueryString.TryGetValue("ID", out IDString) == false)
{
// trace page navigation
TraceHelper.StartMessage("TaskList: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
id = new Guid(IDString);
// create a filter
try
{
tag = App.ViewModel.Tags.Single(t => t.ID == id);
taskList = new TaskList() { ID = Guid.Empty, Name = String.Format("tasks with {0} tag", tag.Name), Tasks = App.ViewModel.Tasks };
SetContext(taskList);
foreach (var source in OrderedSource)
source.Filter += new FilterEventHandler(Tag_Filter);
}
catch (Exception)
{
// the tag isn't found - this can happen when the tag we were just
// editing was removed in TagListEditor, which then goes back to TaskListPage.
// this will send us back to the MainPage which is appropriate.
// trace page navigation
TraceHelper.StartMessage("TaskList: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
break;
default:
// trace page navigation
TraceHelper.StartMessage("TaskList: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
// workaround for the CollectionViewSource wrappers that are used for the different ListBox sorts
// setting SelectionMode to Multiple removes the issue where the SelectionChanged event handler gets
// invoked every time the list is changed (which triggers a re-sort). The SelectionMode gets reset back
// to Single when the SelectionChanged events handler gets called (for a valid reason - i.e. user action)
SetSelectionMode(SelectionMode.Multiple);
// enable the listbox
disableListBoxSelectionChanged = false;
// trace data
TraceHelper.AddMessage("Exiting TaskList OnNavigatedTo");
}
private void RenderEditTaskTagList(TextBox taglist, Task task, PropertyInfo pi)
{
taglist.InputScope = new InputScope() { Names = { new InputScopeName() { NameValue = InputScopeNameValue.Text } } };
// build the comma delimited tag list for this task
bool addDelimiter = false;
StringBuilder sb = new StringBuilder();
var tasktags = (IEnumerable<TaskTag>)pi.GetValue(task, null);
if (tasktags != null)
{
foreach (TaskTag tt in tasktags)
{
if (addDelimiter)
sb.Append(",");
Tag tag = App.ViewModel.Tags.Single(t => t.ID == tt.TagID);
sb.Append(tag.Name);
addDelimiter = true;
}
taglist.Text = sb.ToString();
}
// retrieve the tasktags for the task, creating new tags along the way
taglist.LostFocus += new RoutedEventHandler(delegate
{
//ObservableCollection<TaskTag> existingTags = (ObservableCollection<TaskTag>)pi.GetValue(task, null);
ObservableCollection<TaskTag> newTags = new ObservableCollection<TaskTag>();
string[] tags = taglist.Text.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var tt in tags)
{
string str = tt.Trim();
Tag tag;
try
{
tag = App.ViewModel.Tags.Single(t => t.Name == str);
newTags.Add(new TaskTag() { Name = str, TagID = tag.ID, TaskID = task.ID });
}
catch (Exception)
{
// this is a new tag that we need to create
tag = new Tag() { Name = str };
newTags.Add(new TaskTag() { Name = str, TagID = tag.ID, TaskID = task.ID });
// enqueue the Web Request Record
RequestQueue.EnqueueRequestRecord(
new RequestQueue.RequestRecord()
{
ReqType = RequestQueue.RequestRecord.RequestType.Insert,
Body = new Tag(tag)
});
// add the tag to the tag list
App.ViewModel.Tags.Add(tag);
// save the changes to local storage
StorageHelper.WriteTags(App.ViewModel.Tags);
}
}
// store the new TaskTag collection in the task
pi.SetValue(task, newTags, null);
// create the mirror Tags collection in the task
task.CreateTags(App.ViewModel.Tags);
});
}
void TagEditor_Loaded(object sender, RoutedEventArgs e)
{
// trace event
TraceHelper.AddMessage("TagEditor: Loaded");
ConnectedIconImage.DataContext = App.ViewModel;
string tagIDString = "";
if (NavigationContext.QueryString.TryGetValue("ID", out tagIDString))
{
if (tagIDString == "new")
{
// new tag
tagCopy = new Tag();
DataContext = tagCopy;
}
else
{
Guid tagID = new Guid(tagIDString);
tag = App.ViewModel.Tags.Single<Tag>(tl => tl.ID == tagID);
// make a deep copy of the tag for local binding
tagCopy = new Tag(tag);
DataContext = tagCopy;
// add the delete button to the ApplicationBar
var button = new ApplicationBarIconButton() { Text = "Delete", IconUri = new Uri("/Images/appbar.delete.rest.png", UriKind.Relative) };
button.Click += new EventHandler(DeleteButton_Click);
// insert after the save button but before the cancel button
ApplicationBar.Buttons.Add(button);
}
}
ColorListPicker.ItemsSource = App.ViewModel.Constants.Colors;
ColorListPicker.DisplayMemberPath = "Name";
try
{
TaskStoreClientEntities.Color color = App.ViewModel.Constants.Colors.Single(c => c.Name == tagCopy.Color);
ColorListPicker.SelectedIndex = App.ViewModel.Constants.Colors.IndexOf(color);
}
catch (Exception)
{
}
//ColorListPicker.ItemCountThreshold = App.ViewModel.Constants.Colors.Count;
}
// When page is navigated to set data context to selected item in listType
protected override void OnNavigatedTo(NavigationEventArgs e)
{
// trace data
TraceHelper.AddMessage("List: OnNavigatedTo");
string IDString = "";
string typeString = "";
Guid id;
if (NavigationContext.QueryString.TryGetValue("type", out typeString) == false)
{
// trace page navigation
TraceHelper.StartMessage("List: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
switch (typeString)
{
case "TaskList":
if (NavigationContext.QueryString.TryGetValue("ID", out IDString) == false)
{
// trace page navigation
TraceHelper.StartMessage("List: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
id = new Guid(IDString);
// get the tasklist and make it the datacontext
try
{
taskList = App.ViewModel.LoadList(id);
// if the load failed, this list has been deleted
if (taskList == null)
{
// the list isn't found - this can happen when the list we were just
// editing was removed in TaskListEditor, which then goes back to TaskListPage.
// this will send us back to the MainPage which is appropriate.
// trace page navigation
TraceHelper.StartMessage("List: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
}
catch (Exception ex)
{
// the list isn't found - this can happen when the list we were just
// editing was removed in TaskListEditor, which then goes back to TaskListPage.
// this will send us back to the MainPage which is appropriate.
// trace page navigation
TraceHelper.StartMessage(String.Format("List: Navigate back (exception: {0})", ex.Message));
// navigate back
NavigationService.GoBack();
return;
}
break;
case "Tag":
if (NavigationContext.QueryString.TryGetValue("ID", out IDString) == false)
{
// trace page navigation
TraceHelper.StartMessage("List: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
id = new Guid(IDString);
// create a filter
try
{
tag = App.ViewModel.Tags.Single(t => t.ID == id);
taskList = new TaskList()
{
ID = Guid.Empty,
Name = String.Format("tasks with {0} tag", tag.Name),
Tasks = App.ViewModel.Tasks.Where(t => t.TaskTags.Any(tg => tg.TagID == tag.ID)).ToObservableCollection()
};
}
catch (Exception)
{
// the tag isn't found - this can happen when the tag we were just
// editing was removed in TagListEditor, which then goes back to TaskListPage.
// this will send us back to the MainPage which is appropriate.
// trace page navigation
TraceHelper.StartMessage("List: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
break;
default:
// trace page navigation
TraceHelper.StartMessage("List: Navigate back");
// navigate back
NavigationService.GoBack();
return;
}
// set datacontext
DataContext = taskList;
// create the TaskListHelper
TaskListHelper = new TaskStoreWinPhone.TaskListHelper(
taskList,
new RoutedEventHandler(CompleteCheckbox_Click),
new RoutedEventHandler(Tag_HyperlinkButton_Click));
// store the current listbox and ordering
PivotItem item = (PivotItem) PivotControl.Items[PivotControl.SelectedIndex];
TaskListHelper.ListBox = (ListBox)((Grid)item.Content).Children[1];
TaskListHelper.OrderBy = (string)item.Header;
// trace data
TraceHelper.AddMessage("Exiting List OnNavigatedTo");
}
public Tag(Tag tag)
{
Copy(tag);
}
public void Copy(Tag obj)
{
if (obj == null)
return;
// copy all of the properties
foreach (PropertyInfo pi in this.GetType().GetProperties())
{
var val = pi.GetValue(obj, null);
pi.SetValue(this, val, null);
}
}