public virtual void DomainUpDownPeerOnlySupportsValuePattern()
{
DomainUpDown item = new DomainUpDown();
DomainUpDownAutomationPeer peer = null;
TestAsync(
item,
() => peer = FrameworkElementAutomationPeer.CreatePeerForElement(item) as DomainUpDownAutomationPeer,
() => Assert.IsNull(peer.GetPattern(PatternInterface.Dock), "DomainUpDownAutomationPeer should not support the Dock pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.ExpandCollapse), "DomainUpDownAutomationPeer should not support the ExpandCollapse pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.Grid), "DomainUpDownAutomationPeer should not support the Grid pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.GridItem), "DomainUpDownAutomationPeer should not support the GridItem pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.Invoke), "DomainUpDownAutomationPeer should not support the Dock pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.MultipleView), "DomainUpDownAutomationPeer should not support the MultipleView pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.RangeValue), "DomainUpDownAutomationPeer should not support the RangeValue pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.Scroll), "DomainUpDownAutomationPeer should not support the Scroll pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.ScrollItem), "DomainUpDownAutomationPeer should not support the ScrollItem pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.Selection), "DomainUpDownAutomationPeer should not support the Selection pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.Table), "DomainUpDownAutomationPeer should not support the Table pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.TableItem), "DomainUpDownAutomationPeer should not support the TableItem pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.Toggle), "DomainUpDownAutomationPeer should not support the Toggle pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.Transform), "DomainUpDownAutomationPeer should not support the Transform pattern!"),
() => Assert.IsNotNull(peer.GetPattern(PatternInterface.Value), "DomainUpDownAutomationPeer should support the Value pattern!"),
() => Assert.IsNull(peer.GetPattern(PatternInterface.Window), "DomainUpDownAutomationPeer should not support the Window pattern!"));
}
public virtual void DomainUpDownCreatesCorrectAutomationPeer()
{
DomainUpDown dud = new DomainUpDown();
DomainUpDownAutomationPeer peer = null;
TestAsync(
dud,
() => peer = FrameworkElementAutomationPeer.CreatePeerForElement(dud) as DomainUpDownAutomationPeer,
() => Assert.IsNotNull(peer, "DomainUpDown peer should not be null!"),
() => Assert.AreEqual(dud, peer.Owner, "DomainUpDown should be owner of the peer!"));
}
public virtual void ShouldNotGiveAutomationPeerNullValues()
{
DomainUpDown dud = new DomainUpDown();
DomainUpDownAutomationPeer peer = null;
IValueProvider valueProvider = null;
TestAsync(
dud,
() => peer = (DomainUpDownAutomationPeer)FrameworkElementAutomationPeer.CreatePeerForElement(dud),
() => valueProvider = (IValueProvider)peer.GetPattern(PatternInterface.Value),
() => dud.ItemsSource = Enumerable.Range(0, 20).ToList(),
() => Assert.AreEqual("0", valueProvider.Value),
() => dud.ItemsSource = null); // should not throw
}
/// <summary>
/// Raises the ValueChanged event when Value property has changed.
/// </summary>
/// <param name="e">Event args.</param>
/// <remarks>Will set CurrentIndex.</remarks>
protected override void OnValueChanged(RoutedPropertyChangedEventArgs <object> e)
{
base.OnValueChanged(e);
// set the selected index
CurrentIndex = GetIndexOf(GetActualItems(), Value);
IsEditing = false;
DomainUpDownAutomationPeer peer = FrameworkElementAutomationPeer.FromElement(this) as DomainUpDownAutomationPeer;
if (peer != null)
{
// automation peer cannot handle nulls.
peer.RaisePropertyChangedEvent(ValuePatternIdentifiers.ValueProperty, e.OldValue ?? String.Empty, e.NewValue ?? String.Empty);
}
}
