public void BindingContextFlyoutItems()
{
var flyoutItemVM = new TestShellViewModel()
{
Text = "Dog"
};
Shell shell = new Shell();
shell.BindingContext = flyoutItemVM;
var item1 = CreateShellItem <FlyoutItem>();
item1.SetBinding(FlyoutItem.TitleProperty, "Text", mode: BindingMode.TwoWay);
shell.Items.Add(item1);
MenuItem menuItem = new MenuItem();
menuItem.SetBinding(MenuItem.TextProperty, "Text", mode: BindingMode.TwoWay);
shell.Items.Add(menuItem);
var flyoutItemLabel = GetFlyoutItemDataTemplateElement <Label>(shell, shell.Items[0]);
var menuItemLabel = GetFlyoutItemDataTemplateElement <Label>(shell, shell.Items[1]);
Assert.AreEqual("Dog", flyoutItemLabel.Text);
Assert.AreEqual("Dog", menuItemLabel.Text);
flyoutItemVM.Text = "Cat";
Assert.AreEqual("Cat", flyoutItemLabel.Text);
Assert.AreEqual("Cat", menuItemLabel.Text);
}
public void BindingContextSetsCorrectlyWhenUsingAsMultipleItemAndImplicitlyGeneratedShellSections()
{
Shell shell = new Shell();
FlyoutItem item = new FlyoutItem()
{
FlyoutDisplayOptions = FlyoutDisplayOptions.AsMultipleItems
};
ShellContent shellContent1 = new ShellContent();
ShellContent shellContent2 = new ShellContent();
item.Items.Add(shellContent1);
item.Items.Add(shellContent2);
shell.Items.Add(item);
var vm = new TestShellViewModel();
vm.SubViewModel = new TestShellViewModel()
{
Text = "Item1"
};
vm.SubViewModel2 = new TestShellViewModel()
{
Text = "Item2"
};
shell.BindingContext = vm;
shellContent1.SetBinding(BindableObject.BindingContextProperty, "SubViewModel");
shellContent2.SetBinding(BindableObject.BindingContextProperty, "SubViewModel2");
shell.ItemTemplate = new DataTemplate(() =>
{
Label label = new Label();
label.SetBinding(Label.TextProperty, "BindingContext.Text");
return(label);
});
var flyoutItems = (shell as IShellController).GenerateFlyoutGrouping();
var label1 = GetFlyoutItemDataTemplateElement <Label>(shell, flyoutItems[0][0]);
var label2 = GetFlyoutItemDataTemplateElement <Label>(shell, flyoutItems[0][1]);
Assert.AreEqual(label1.BindingContext, shellContent1);
Assert.AreEqual(label2.BindingContext, shellContent2);
Assert.AreEqual("Item1", label1.Text);
Assert.AreEqual("Item2", label2.Text);
}