public void ValidateBindableProperties()
{
var layout = new StackLayout
{
IsPlatformEnabled = true,
};
// EmptyView
object emptyView = new object();
BindableLayout.SetEmptyView(layout, emptyView);
Assert.AreEqual(emptyView, BindableLayout.GetEmptyView(layout));
Assert.AreEqual(emptyView, layout.GetValue(BindableLayout.EmptyViewProperty));
// EmptyViewTemplateProperty
DataTemplate emptyViewTemplate = new DataTemplate(typeof(Label));
BindableLayout.SetEmptyViewTemplate(layout, emptyViewTemplate);
Assert.AreEqual(emptyViewTemplate, BindableLayout.GetEmptyViewTemplate(layout));
Assert.AreEqual(emptyViewTemplate, layout.GetValue(BindableLayout.EmptyViewTemplateProperty));
// ItemsSourceProperty
IEnumerable itemsSource = new object[0];
BindableLayout.SetItemsSource(layout, itemsSource);
Assert.AreEqual(itemsSource, BindableLayout.GetItemsSource(layout));
Assert.AreEqual(itemsSource, layout.GetValue(BindableLayout.ItemsSourceProperty));
// ItemTemplateProperty
DataTemplate itemTemplate = new DataTemplate(typeof(Label));
BindableLayout.SetItemTemplate(layout, itemTemplate);
Assert.AreEqual(itemTemplate, BindableLayout.GetItemTemplate(layout));
Assert.AreEqual(itemTemplate, layout.GetValue(BindableLayout.ItemTemplateProperty));
// ItemTemplateSelectorProperty
var itemTemplateSelector = new DataTemplateSelectorFrame();
BindableLayout.SetItemTemplateSelector(layout, itemTemplateSelector);
Assert.AreEqual(itemTemplateSelector, BindableLayout.GetItemTemplateSelector(layout));
Assert.AreEqual(itemTemplateSelector, layout.GetValue(BindableLayout.ItemTemplateSelectorProperty));
}
public void ItemTemplateSelectorIsSet()
{
var layout = new StackLayout
{
IsPlatformEnabled = true,
};
var itemsSource = new ObservableCollection <int>(Enumerable.Range(0, 10));
BindableLayout.SetItemsSource(layout, itemsSource);
BindableLayout.SetItemTemplateSelector(layout, new DataTemplateSelectorFrame());
Assert.IsTrue(IsLayoutWithItemsSource(itemsSource, layout));
Assert.AreEqual(itemsSource.Count, layout.Children.Cast <Frame>().Count());
}
public void ItemTemplateTakesPrecendenceOverItemTemplateSelector()
{
var layout = new StackLayout
{
IsPlatformEnabled = true,
Platform = new UnitPlatform()
};
var itemsSource = new ObservableCollection <int>(Enumerable.Range(0, 10));
BindableLayout.SetItemsSource(layout, itemsSource);
BindableLayout.SetItemTemplate(layout, new DataTemplateBoxView());
BindableLayout.SetItemTemplateSelector(layout, new DataTemplateSelectorFrame());
Assert.IsTrue(IsLayoutWithItemsSource(itemsSource, layout));
Assert.AreEqual(itemsSource.Count, layout.Children.Cast <BoxView>().Count());
}
public void ContainerIsPassedInSelectTemplate()
{
var layout = new StackLayout
{
IsPlatformEnabled = true,
};
var itemsSource = new ObservableCollection <int>(Enumerable.Range(0, 10));
BindableLayout.SetItemsSource(layout, itemsSource);
int containerPassedCount = 0;
BindableLayout.SetItemTemplateSelector(layout, new MyDataTemplateSelectorTest((item, container) =>
{
if (container == layout)
{
++containerPassedCount;
}
return(null);
}));
Assert.AreEqual(containerPassedCount, itemsSource.Count);
}
public static TLayout ItemTemplateSelector <TLayout>(this TLayout layout, DataTemplateSelector selector) where TLayout : Layout <View>
{
BindableLayout.SetItemTemplateSelector(layout, selector); return(layout);
}
public static T SetDataTemplateSelector <T>(this T bindable, DataTemplateSelector dataTemplateSelector) where T : BindableObject
{
BindableLayout.SetItemTemplateSelector(bindable, dataTemplateSelector);
return(bindable);
}
public static T BindItemTemplateSelector <T>(this T layout, DataTemplateSelector selector) where T : Layout
{
BindableLayout.SetItemTemplateSelector(layout, selector);
return(layout);
}