public void CollectionViewSortTest()
{
ObservableCollection <int> collection = new ObservableCollection <int>(new[] { 0, 1, 9, 8, 2, 3, 7, 6, 4, 5 });
CollectionView collectionView = new CollectionView(collection);
NotifyCollectionChangedEventArgs lastChangeArgs = null;
int currentChangedCount = 0;
collectionView.CollectionChanged += (sender, e) => lastChangeArgs = e;
collectionView.CurrentChanged += (sender, e) => currentChangedCount++;
collectionView.CurrentItem = 3;
Assert.AreEqual(3, collectionView.CurrentItem);
Assert.AreEqual(5, collectionView.CurrentItemIndex);
Assert.AreEqual(1, currentChangedCount);
collectionView.SortKeySelector = item => item;
Assert.AreEqual(3, collectionView.CurrentItem);
Assert.AreEqual(3, collectionView.CurrentItemIndex);
Assert.AreEqual(2, currentChangedCount);
Assert.AreEqual(NotifyCollectionChangedAction.Reset, lastChangeArgs.Action);
CollectionAssert.AreEqual(new[] { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }, collectionView.Cast <int>().ToArray());
collectionView.SortDirection = ListSortDirection.Descending;
Assert.AreEqual(3, collectionView.CurrentItem);
Assert.AreEqual(6, collectionView.CurrentItemIndex);
Assert.AreEqual(3, currentChangedCount);
Assert.AreEqual(NotifyCollectionChangedAction.Reset, lastChangeArgs.Action);
CollectionAssert.AreEqual(new[] { 9, 8, 7, 6, 5, 4, 3, 2, 1, 0 }, collectionView.Cast <int>().ToArray());
}
public ObservableViewModelCollection(CollectionView source, Func <TModel, TViewModel> viewModelFactory)
: base(source.Cast <TModel>().Select(model => viewModelFactory(model)))
{
_source = source;
_viewModelFactory = viewModelFactory;
_listener = new CollectionChangedEventListener(_source, OnSourceCollectionChanged);
}
public AddInViewModel()
{
_items =
(CollectionView)
CollectionViewSource.GetDefaultView(
ReviveThisApplication.Default.AddIns.Items
.Select(s => new AddInInformation(s))
.OrderBy(ob => ob.FileName));
if (_items == null)
{
return;
}
Items = _items;
var groupDescription = new PropertyGroupDescription("FileName");
if (_items.GroupDescriptions != null)
{
_items.GroupDescriptions.Add(groupDescription);
}
var first = _items.Cast <AddInInformation>().FirstOrDefault();
if (first != null)
{
SelectedItem = first;
}
}
public MainPage()
{
InitializeComponent();
dragHelper = new DragDropHelper();
State = Persistence.GlobalState.Load();
State.Translations.ChangeLocale(Options.Locale);
DataContext = State;
SetWindowTitle();
// TODO: move this block to XAML, see http://www.galasoft.ch/mydotnet/articles/article-2007081301.aspx
itemCollectionView = (CollectionView)CollectionViewSource.GetDefaultView(LiftItems);
itemCollectionView.GroupDescriptions.Add(new PropertyGroupDescription("Category"));
itemCollectionView.SortDescriptions.Add(new SortDescription("Category", ListSortDirection.Descending));
itemCollectionView.SortDescriptions.Add(new SortDescription("Title", ListSortDirection.Ascending));
LiftItems.CollectionChanged += (sender, e) =>
{
Console.WriteLine(DateTime.Now + " LiftItems.CollectionChanged/2 triggered");
//UpdateLiftItems();
};
lbLiftItems.SelectedIndex = 0;
lbLiftItems.Focus();
// set jumplist items in case they were changed outside of the program
Helpers.JumpListHelper.Update(itemCollectionView.Cast <Data.LiftItem>());
//lbLiftItems.DragEnter += new DragEventHandler(lbLiftItems_DragEnter);
//lbLiftItems.DragOver += new DragEventHandler(lbLiftItems_DragOver);
}
private void UpdateLiftItems(bool refresh = true)
{
if (refresh)
{
itemCollectionView.Refresh();
}
Persistence.LiftItemsStore.Save(LiftItems);
Helpers.JumpListHelper.Update(itemCollectionView.Cast <Data.LiftItem>());
//Helpers.JumpListHelper.Update(LiftItems);
}
/// <summary>
/// Constructs pie pieces and adds them to the visual tree for this control's canvas
/// </summary>
private void ConstructPiePieces()
{
CollectionView myCollectionView = (CollectionView)CollectionViewSource.GetDefaultView(this.DataContext);
if (myCollectionView == null)
{
return;
}
double halfWidth = ((this.ActualHeight < this.ActualWidth ? this.ActualHeight : this.ActualWidth)
- this.Margin.Top - this.Margin.Bottom) / 2;
double innerRadius = halfWidth * HoleSize;
// compute the total for the property which is being plotted
double total = myCollectionView.Cast <object>().Sum(item => GetPlottedPropertyValue(item));
CleanupPie();
// add the pie pieces
double accumulativeAngle = 0;
foreach (Object item in myCollectionView)
{
bool selectedItem = item == myCollectionView.CurrentItem;
double wedgeAngle = GetPlottedPropertyValue(item) * 360 / total;
PiePiece piece = new PiePiece()
{
Radius = halfWidth,
InnerRadius = innerRadius,
CenterX = halfWidth,
CenterY = halfWidth,
PushOut = (selectedItem ? 10.0 : 0),
WedgeAngle = wedgeAngle,
PieceValue = GetPlottedPropertyValue(item),
RotationAngle = accumulativeAngle,
Fill = ColorSelector != null?ColorSelector.SelectBrush(item, myCollectionView.IndexOf(item)) : Brushes.Black,
PieceCaption = GetPlottedCaptionPropertyValue(item),
// record the index of the item which this pie slice represents
Tag = myCollectionView.IndexOf(item),
ToolTip = new ToolTip()
};
piece.ToolTipOpening += PiePieceToolTipOpening;
piece.MouseUp += PiePieceMouseUp;
piePieces.Add(piece);
canvas.Children.Insert(0, piece);
accumulativeAngle += wedgeAngle;
}
}
public async Task GetMessageTypesList()
{
List <MessageType> messageTypes = _mappers.GetMessageTypeDTOToMessageTypeMapper().Map <IEnumerable <MessageTypeDTO>, List <MessageType> >(await _mailService.GetMessageTypesAsync());
messageTypes.FirstOrDefault(m => m.ID == (int)Enums.MessageTypes.Inbox).Text = "Все входящие";
MessageTypes = new CollectionView(messageTypes);
ICollectionView filterView = CollectionViewSource.GetDefaultView(MessageTypes.SourceCollection.Cast <MessageType>());
filterView.Filter = item => { return((item as MessageType) != null && (item as MessageType).ID > (int)Enums.MessageTypes.None && (item as MessageType).ID != (int)Enums.MessageTypes.InboxNone); };
MessageTypes = filterView;
// Bug: При обновлении переключается на самый первый пункт, хотя в выбранном нужный
SelectedLeftMenuItem = MessageTypes.Cast <MessageType>().ToList().FirstOrDefault(m => m.ID == (int)Enums.MessageTypes.InboxParticipant); // TODO: Get from AppSettings in DB
}
public void CollectionViewFilterTest()
{
ObservableCollection <int> collection = new ObservableCollection <int>(new[] { 0, 1, 9, 8, 2, 3, 7, 6, 4, 5 });
CollectionView collectionView = new CollectionView(collection);
NotifyCollectionChangedEventArgs lastChangeArgs = null;
int currentChangedCount = 0;
collectionView.CollectionChanged += (sender, e) => lastChangeArgs = e;
collectionView.CurrentChanged += (sender, e) => currentChangedCount++;
collectionView.CurrentItem = 2;
Assert.AreEqual(2, collectionView.CurrentItem);
Assert.AreEqual(4, collectionView.CurrentItemIndex);
Assert.AreEqual(1, currentChangedCount);
collectionView.FilterPredicate = item => (int)item % 2 == 0;
Assert.AreEqual(2, collectionView.CurrentItem);
Assert.AreEqual(2, collectionView.CurrentItemIndex);
Assert.AreEqual(2, currentChangedCount);
Assert.AreEqual(NotifyCollectionChangedAction.Reset, lastChangeArgs.Action);
CollectionAssert.AreEqual(new[] { 0, 8, 2, 6, 4 }, collectionView.Cast <int>().ToArray());
}
private void ExportCSV()
{
String text = "";
text = "\"Skåp\",\"Nycklar\",\"Status\",\"Förnamn\",\"Efternamn\",\"Åk\",\"Klass\",\"År\",\"Commentar\"\n";
List <MyItem> list = sql.getAllLockers("", "", "", "", "");
CollectionView view = (CollectionView)CollectionViewSource.GetDefaultView(list);
view.Culture = new CultureInfo("sv-SE");
view.SortDescriptions.Clear();
view.SortDescriptions.Add(new SortDescription("P.Grade", ListSortDirection.Ascending));
view.SortDescriptions.Add(new SortDescription("P.Class", ListSortDirection.Ascending));
view.SortDescriptions.Add(new SortDescription("P.Lastname", ListSortDirection.Ascending));
view.SortDescriptions.Add(new SortDescription("P.Firstname", ListSortDirection.Ascending));
view.SortDescriptions.Add(new SortDescription("L.Status", ListSortDirection.Ascending));
view.SortDescriptions.Add(new SortDescription("L.Number", ListSortDirection.Ascending));
list = view.Cast <MyItem>().ToList();
for (int i = 0; i < list.Count; i++)
{
MyItem n = list[i];
// Console.WriteLine("JJ" + m.L.Comment.Replace("\n", " ") + "JJ");
string history = n.L.HistoryShort.Replace("\"", "'");
text += "\"" + n.L.Number + "\",\"" + n.L.Keys + "\",\"" + n.L.StatusText + "\",\"" + n.P.Firstname + "\",\"" + n.P.Lastname + "\",\"" + n.P.Grade + "\",\"" + n.P.Class + "\",\"" + n.P.Year + "\",\"" + history + "\"\n";
}
try
{
File.WriteAllText(dir + "skåp.csv", text, Encoding.UTF8);
}
catch (Exception)
{
}
}
IEnumerator <T> IEnumerable <T> .GetEnumerator()
{
return(CollectionView.Cast <T>().GetEnumerator());
}
public void CollectionViewChangeTest()
{
ObservableCollection <int> collection = new ObservableCollection <int>(new[] { 0, 1, 9, 8, 2, 3, 7, 6, 4, 5 });
CollectionView collectionView = new CollectionView(collection);
NotifyCollectionChangedEventArgs lastChangeArgs = null;
int currentChangedCount = 0;
collectionView.CollectionChanged += (sender, e) => lastChangeArgs = e;
collectionView.CurrentChanged += (sender, e) => currentChangedCount++;
collectionView.CurrentItem = 3;
Assert.AreEqual(3, collectionView.CurrentItem);
Assert.AreEqual(5, collectionView.CurrentItemIndex);
Assert.AreEqual(1, currentChangedCount);
collectionView.CurrentItemIndex = 3;
Assert.AreEqual(8, collectionView.CurrentItem);
Assert.AreEqual(3, collectionView.CurrentItemIndex);
Assert.AreEqual(2, currentChangedCount);
collection.Add(10);
Assert.AreEqual(8, collectionView.CurrentItem);
Assert.AreEqual(3, collectionView.CurrentItemIndex);
Assert.AreEqual(2, currentChangedCount);
Assert.AreEqual(NotifyCollectionChangedAction.Add, lastChangeArgs.Action);
Assert.AreEqual(10, lastChangeArgs.NewStartingIndex);
CollectionAssert.AreEqual(new [] { 10 }, lastChangeArgs.NewItems.Cast <int>().ToArray());
CollectionAssert.AreEqual(new [] { 0, 1, 9, 8, 2, 3, 7, 6, 4, 5, 10 }, collectionView.Cast <int>().ToArray());
collection.Insert(0, 11);
Assert.AreEqual(8, collectionView.CurrentItem);
Assert.AreEqual(4, collectionView.CurrentItemIndex);
Assert.AreEqual(3, currentChangedCount);
Assert.AreEqual(NotifyCollectionChangedAction.Add, lastChangeArgs.Action);
Assert.AreEqual(0, lastChangeArgs.NewStartingIndex);
CollectionAssert.AreEqual(new[] { 11 }, lastChangeArgs.NewItems.Cast <int>().ToArray());
CollectionAssert.AreEqual(new[] { 11, 0, 1, 9, 8, 2, 3, 7, 6, 4, 5, 10 }, collectionView.Cast <int>().ToArray());
collection.RemoveAt(4);
Assert.AreEqual(2, collectionView.CurrentItem);
Assert.AreEqual(4, collectionView.CurrentItemIndex);
Assert.AreEqual(4, currentChangedCount);
Assert.AreEqual(NotifyCollectionChangedAction.Remove, lastChangeArgs.Action);
Assert.AreEqual(4, lastChangeArgs.OldStartingIndex);
CollectionAssert.AreEqual(new[] { 8 }, lastChangeArgs.OldItems.Cast <int>().ToArray());
CollectionAssert.AreEqual(new[] { 11, 0, 1, 9, 2, 3, 7, 6, 4, 5, 10 }, collectionView.Cast <int>().ToArray());
collection[4] = 12;
Assert.AreEqual(12, collectionView.CurrentItem);
Assert.AreEqual(4, collectionView.CurrentItemIndex);
Assert.AreEqual(5, currentChangedCount);
Assert.AreEqual(NotifyCollectionChangedAction.Replace, lastChangeArgs.Action);
Assert.AreEqual(4, lastChangeArgs.NewStartingIndex);
CollectionAssert.AreEqual(new[] { 12 }, lastChangeArgs.NewItems.Cast <int>().ToArray());
CollectionAssert.AreEqual(new[] { 2 }, lastChangeArgs.OldItems.Cast <int>().ToArray());
CollectionAssert.AreEqual(new[] { 11, 0, 1, 9, 12, 3, 7, 6, 4, 5, 10 }, collectionView.Cast <int>().ToArray());
collectionView.CurrentItemIndex = 20;
Assert.IsNull(collectionView.CurrentItem);
Assert.AreEqual(11, collectionView.CurrentItemIndex);
Assert.AreEqual(6, currentChangedCount);
collection.Add(13);
Assert.IsNull(collectionView.CurrentItem);
Assert.AreEqual(12, collectionView.CurrentItemIndex);
Assert.AreEqual(7, currentChangedCount);
CollectionAssert.AreEqual(new[] { 11, 0, 1, 9, 12, 3, 7, 6, 4, 5, 10, 13 }, collectionView.Cast <int>().ToArray());
collection.RemoveAt(0);
Assert.IsNull(collectionView.CurrentItem);
Assert.AreEqual(11, collectionView.CurrentItemIndex);
Assert.AreEqual(8, currentChangedCount);
CollectionAssert.AreEqual(new[] { 0, 1, 9, 12, 3, 7, 6, 4, 5, 10, 13 }, collectionView.Cast <int>().ToArray());
}
