public void When_SingleSelectedItem_Event()
{
var panel = new StackPanel();
var item = new Border {
Name = "b1"
};
var SUT = new ListViewBase()
{
Style = null,
Template = new ControlTemplate(() => new ItemsPresenter()),
ItemsPanel = new ItemsPanelTemplate(() => panel),
ItemContainerStyle = BuildBasicContainerStyle(),
Items =
{
item
}
};
var model = new MyModel
{
SelectedItem = (object)null
};
SUT.SetBinding(
Selector.SelectedItemProperty,
new Binding()
{
Path = "SelectedItem",
Source = model,
Mode = BindingMode.TwoWay
}
);
SUT.ApplyTemplate();
// Search on the panel for now, as the name lookup is not properly
// aligned on net46.
Assert.IsNotNull(panel.FindName("b1"));
var selectionChanged = 0;
SUT.SelectionChanged += (s, e) =>
{
selectionChanged++;
Assert.AreEqual(item, SUT.SelectedItem);
// In windows, when programmatically changed, the bindings are updated *after*
// the event is raised, but *before* when the SelectedItem is changed from the UI.
Assert.IsNull(model.SelectedItem);
};
SUT.SelectedIndex = 0;
Assert.AreEqual(item, model.SelectedItem);
Assert.IsNotNull(SUT.SelectedItem);
Assert.AreEqual(1, selectionChanged);
Assert.AreEqual(1, SUT.SelectedItems.Count);
}
public void When_MultiSelectedItem()
{
var panel = new StackPanel();
var SUT = new ListViewBase()
{
Style = null,
Template = new ControlTemplate(() => new ItemsPresenter()),
ItemContainerStyle = BuildBasicContainerStyle(),
ItemsPanel = new ItemsPanelTemplate(() => panel),
Items =
{
new Border {
Name = "b1"
},
new Border {
Name = "b2"
}
}
};
SUT.ApplyTemplate();
// Search on the panel for now, as the name lookup is not properly
// aligned on net46.
Assert.IsNotNull(panel.FindName("b1"));
Assert.IsNotNull(panel.FindName("b2"));
SUT.SelectionMode = ListViewSelectionMode.Multiple;
SUT.OnItemClicked(0);
Assert.AreEqual(1, SUT.SelectedItems.Count);
SUT.OnItemClicked(1);
Assert.AreEqual(2, SUT.SelectedItems.Count);
}