public void ICV_OneItemTwoGroups3()
{
var o = new object();
var source = new CollectionViewSource {
Source = new[] { o }
};
var group = new ConcretePropertyGroupDescription {
GroupNameFromItemFunc = (item, level, culture) => new[] { "First", "Second" }
};
var box = new ListBox {
ItemsSource = source.View
};
CreateAsyncTest(box,
() => {
box.ApplyTemplate();
}, () => {
source.GroupDescriptions.Add(group);
Assert.AreEqual(2, box.Items.Count, "#1");
Assert.AreEqual(o, box.Items[0], "#2");
Assert.AreEqual(o, box.Items[1], "#3");
Assert.IsNull(box.ItemContainerGenerator.ContainerFromIndex(0), "#4");
}, () => {
Assert.IsNotNull(box.ItemContainerGenerator.ContainerFromIndex(0), "#5");
Assert.AreNotSame(box.ItemContainerGenerator.ContainerFromIndex(0), box.ItemContainerGenerator.ContainerFromIndex(1), "#6");
}
);
}
public void ICV_OneItemTwoGroups_Remove()
{
var o = new object();
var source = new CollectionViewSource {
Source = new List <Object> {
o
}
};
var group = new ConcretePropertyGroupDescription {
GroupNameFromItemFunc = (item, level, culture) => new[] { "First", "Second" }
};
source.GroupDescriptions.Add(group);
var box = new ListBox {
ItemsSource = source.View
};
CreateAsyncTest(box,
() => {
box.ApplyTemplate();
}, () => {
((IEditableCollectionView)source.View).RemoveAt(0);
Assert.AreEqual(0, box.Items.Count, "#1");
}
);
}