public void OnCollectionChangedTest()
{
List <EditableTestClass> efbList = new List <EditableTestClass>();
ObservableCollection <TestClass> fbCollection = new ObservableCollection <TestClass>();
PagedCollectionView pcv1 = new PagedCollectionView(efbList);
PagedCollectionView pcv2 = new PagedCollectionView(fbCollection);
pcv1.CollectionChanged += new NotifyCollectionChangedEventHandler(this.PagedCollectionViewCollectionChanged);
pcv2.CollectionChanged += new NotifyCollectionChangedEventHandler(this.PagedCollectionViewCollectionChanged);
this._expectedAction = NotifyCollectionChangedAction.Reset;
this.AssertExpectedEvent(delegate { pcv1.Refresh(); });
this._expectedAction = NotifyCollectionChangedAction.Reset;
this.AssertExpectedEvent(delegate { fbCollection.Clear(); });
this._expectedAction = NotifyCollectionChangedAction.Add;
this.AssertExpectedEvent(delegate { fbCollection.Add(new TestClass()); });
EditableTestClass efb;
this._expectedAction = NotifyCollectionChangedAction.Add;
this.AssertExpectedEvent(delegate { efb = pcv1.AddNew() as EditableTestClass; });
pcv1.CommitNew();
// Add, then Cancel to fire a Remove
this._expectedAction = NotifyCollectionChangedAction.Add;
this.AssertExpectedEvent(delegate { pcv1.AddNew(); });
this._expectedAction = NotifyCollectionChangedAction.Remove;
this.AssertExpectedEvent(delegate { pcv1.CancelNew(); });
// Set PageSize to 1 to Reset
this._expectedAction = NotifyCollectionChangedAction.Reset;
this.AssertExpectedEvent(delegate { pcv1.PageSize = 1; });
// Remove an Item
this._expectedAction = NotifyCollectionChangedAction.Remove;
this.AssertExpectedEvent(delegate { pcv1.RemoveAt(0); });
pcv2.CollectionChanged -= new NotifyCollectionChangedEventHandler(this.PagedCollectionViewCollectionChanged);
pcv1.CollectionChanged -= new NotifyCollectionChangedEventHandler(this.PagedCollectionViewCollectionChanged);
}
public void SortingWithLocalizationTest()
{
ObservableCollection <object> list = new ObservableCollection <object>()
{
"al:tinda", "ch:aque", "Cz:ech", "co:te", "hi:zli", "i:erigiyle"
};
PagedCollectionView view = new PagedCollectionView(list);
// first test with the default InvariantCulture to see that it sorts in the correct order
view.Culture = CultureInfo.InvariantCulture;
view.SortDescriptions.Add(new SortDescription("", ListSortDirection.Descending));
Assert.AreEqual(view[0], "i:erigiyle");
Assert.AreEqual(view[1], "hi:zli");
Assert.AreEqual(view[2], "Cz:ech");
Assert.AreEqual(view[3], "co:te");
Assert.AreEqual(view[4], "ch:aque");
Assert.AreEqual(view[5], "al:tinda");
// now test with a Slovik culture applied to make sure that it sorts in the correct order
view.Culture = new CultureInfo("sk-SK");
view.Refresh();
Assert.AreEqual(view[0], "i:erigiyle");
Assert.AreEqual(view[1], "ch:aque");
Assert.AreEqual(view[2], "hi:zli");
Assert.AreEqual(view[3], "Cz:ech");
Assert.AreEqual(view[4], "co:te");
Assert.AreEqual(view[5], "al:tinda");
// now remove the second item and re-insert to verify that sorting with the CultureInfo
// allows it to be placed back in the same index
view.RemoveAt(1);
string str = "ch:aque";
list.Add(str);
Assert.AreEqual(str, view[1]);
}
public void AddRemoveEventsWithListBoxTest()
{
ObservableCollection <TestClass> collection = new ObservableCollection <TestClass>()
{
new TestClass {
IntProperty = 1, StringProperty = "A"
},
new TestClass {
IntProperty = 1, StringProperty = "C"
},
new TestClass {
IntProperty = 2, StringProperty = "D"
}
};
PagedCollectionView cv = new PagedCollectionView(collection);
ListBox lb = new ListBox();
lb.ItemsSource = cv;
this.CreateAsyncTask(
lb,
delegate
{
Assert.AreEqual(3, lb.Items.Count);
cv.AddNew();
cv.CommitNew();
Assert.AreEqual(4, lb.Items.Count);
cv.RemoveAt(3);
Assert.AreEqual(3, lb.Items.Count);
cv.SortDescriptions.Add(new System.ComponentModel.SortDescription("StringProperty", System.ComponentModel.ListSortDirection.Ascending));
TestClass newItem1 = new TestClass()
{
StringProperty = "B", IntProperty = 2
};
collection.Add(newItem1);
// Should have inserted into due to sorting
// {A, [B], C, D}
Assert.AreEqual(1, cv.IndexOf(newItem1));
Assert.AreEqual(1, lb.Items.IndexOf(newItem1));
cv.GroupDescriptions.Add(new PropertyGroupDescription("IntProperty"));
// Should now be grouped as
// {1A, 1C}
// {2B, 2D}
Assert.AreEqual(2, lb.Items.IndexOf(newItem1));
TestClass newItem2 = new TestClass()
{
StringProperty = "E", IntProperty = 1
};
collection.Add(newItem2);
// Should have inserted into due here to sorting/grouping
// {1A, 1C, [1E]}
// {2B, 2D}
Assert.AreEqual(2, cv.IndexOf(newItem2));
Assert.AreEqual(2, lb.Items.IndexOf(newItem2));
// Testing that with sorting/grouping, item is removed from the correct index
cv.RemoveAt(1);
Assert.AreEqual(newItem2, lb.Items[1]);
// Test 'Replace' operation.
TestClass newItem3 = new TestClass()
{
StringProperty = "F", IntProperty = 2
};
TestClass replacedItem = collection[0];
collection[0] = newItem3;
// This operation should have deleted old and added new
// {[-deleted-], 1E}
// {2B, 2D, [2F]}
Assert.AreEqual(-1, lb.Items.IndexOf(replacedItem));
Assert.AreEqual(3, lb.Items.IndexOf(newItem3));
});
EnqueueTestComplete();
}