public void DefaultTemplate_FindName()
{
ContentPresenter presenter = new ContentPresenter {
Content = "Content"
};
presenter.Measure(Size.Empty);
Grid grid = null;
Assert.VisualChildren(presenter, "#1",
new VisualNode <Grid>("#a", g => grid = g,
new VisualNode <TextBlock>("#b")
)
);
var child = (TextBlock)grid.Children[0];
child.Name = "TestName";
Assert.IsNull(child.FindName("TestName"), "#2");
Assert.IsNull(grid.FindName("TestName"), "#3");
Assert.IsNull(presenter.FindName("TestName"), "#4");
grid.Children.Clear();
TestPanel.Children.Add(child);
Assert.IsNull(TestPanel.FindName("TestName"), "#5");
}
void BasedOn_FindName_Core(bool useTwice)
{
Style s1 = new Style(typeof(Grid));
Style s2 = new Style(typeof(Grid));
Style basedon = new Style(typeof(Grid));
s1.SetValue(FrameworkElement.NameProperty, "s1");
s2.SetValue(FrameworkElement.NameProperty, "s2");
basedon.SetValue(FrameworkElement.NameProperty, "basedon");
s1.BasedOn = basedon;
if (useTwice)
{
s2.BasedOn = basedon;
}
TestPanel.Children.Add(new Grid {
Name = "Grid2", Style = s2
});
TestPanel.Children.Add(new Grid {
Name = "Grid1", Style = s1
});
Assert.IsInstanceOfType <Style>(TestPanel.FindName("s1"), "#1");
Assert.IsInstanceOfType <Style>(TestPanel.FindName("s2"), "#2");
if (useTwice)
{
Assert.IsNull(TestPanel.FindName("basedon"), "#3");
}
else
{
Assert.AreSame(s1.BasedOn, TestPanel.FindName("basedon"), "#4");
}
}
public void AddStateAtRuntime()
{
Rectangle rect = new Rectangle {
Name = RootName
};
VSMControl c = new VSMControl();
c.ApplyTemplate();
// Create a visual state in code which we will try to use to animate the template element called 'Grid'
foreach (VisualStateGroup g in VisualStateManager.GetVisualStateGroups(c.TemplateGrid))
{
VisualState s = new VisualState();
s.SetValue(FrameworkElement.NameProperty, "C");
s.Storyboard = CreateWidthStoryboard(RootName, 600, 700);
g.States.Add(s);
}
// The template element "Grid" can't be found by the new storyboard
CreateAsyncTest(c,
() => {
Assert.IsTrue(VisualStateManager.GoToState(c, "A", false), "#1");
Assert.Throws <InvalidOperationException> (() => VisualStateManager.GoToState(c, "C", false), "#2");
// Adding a new element called 'Grid' to the TestPanel does not work
TestPanel.Children.Add(rect);
Assert.Throws <InvalidOperationException> (() => VisualStateManager.GoToState(c, "C", false), "#3");
// The new element is not findable from the control
Assert.IsNull(c.FindName(RootName), "#4");
Assert.AreSame(rect, TestPanel.FindName(RootName), "#5");
// Adding it to the template grid instead
TestPanel.Children.Remove(rect);
c.TemplateGrid.Children.Add(rect);
// It's not findable from the panel, but it is from the Control
Assert.AreSame(rect, c.FindName(RootName), "#6");
Assert.IsNull(TestPanel.FindName(RootName), "#7");
// Once it's findable from the control, the storyboard will resolve to the new element and succeed
Assert.IsTrue(VisualStateManager.GoToState(c, "C", false), "#8");
},
() => {
Assert.AreEqual(700, rect.Width, "#9");
// The template element 'Grid' is not changed
Assert.IsTrue(Double.IsNaN(c.TemplateGrid.Width), "#10");
}
);
}
public void UseTwice()
{
string name = "SuperSecretBrush";
Brush b1 = new SolidColorBrush();
b1.SetValue(FrameworkElement.NameProperty, name);
var g1 = new Grid {
Name = "g1", Background = b1
};
var g2 = new Grid {
Name = "g2", Background = b1
};
TestPanel.Children.Add(g1);
Assert.IsNull(TestPanel.FindName(name), "#1");
TestPanel.Children.Add(g2);
Assert.IsNull(TestPanel.FindName(name), "#2");
}
public void SamePlacementTarget_MultipleTooltips()
{
// We can use the same object and name multiple times for PlacementTarget
// as the Name is not registered.
var placementTarget = new ToolTip {
Name = "TooltipNameNotRegistered"
};
var target1 = new Grid();
var target2 = new Grid();
TestPanel.Children.Add(target1);
TestPanel.Children.Add(target2);
ToolTipService.SetPlacementTarget(target1, placementTarget);
ToolTipService.SetPlacementTarget(target2, placementTarget);
ToolTipService.SetPlacementTarget(TestPanel, new ToolTip {
Name = "TooltipNameNotRegistered"
});
Assert.IsNull(TestPanel.FindName(placementTarget.Name), "#1");
}
public void SameTooltipObjectForMultipleObjects_TooltipObject()
{
// We can set multiple tooltips with the same name without getting
// a name collision as the Name is not registered.
string name = "TooltipNameNotRegistered";
var target1 = new Grid();
var target2 = new Grid();
TestPanel.Children.Add(target1);
TestPanel.Children.Add(target2);
ToolTipService.SetToolTip(target1, new ToolTip {
Name = name
});
ToolTipService.SetToolTip(target2, new ToolTip {
Name = name
});
ToolTipService.SetToolTip(TestPanel, new ToolTip {
Name = name
});
Assert.IsNull(TestPanel.FindName(name), "#1");
}
public void DataTemplateNamescopeTest()
{
Grid grid = (Grid)XamlReader.Load(@"
<Grid xmlns=""http://schemas.microsoft.com/client/2007""
xmlns:x=""http://schemas.microsoft.com/winfx/2006/xaml"">
<Grid.Resources>
<DataTemplate x:Key=""Template"">
<Grid x:Name=""A"">
<Grid x:Name=""B"" />
</Grid>
</DataTemplate>
</Grid.Resources>
</Grid>");
DataTemplate t = (DataTemplate)grid.Resources["Template"];
Grid root = (Grid)t.LoadContent();
Assert.AreEqual(root, root.FindName("A"), "#1");
Assert.IsInstanceOfType <Grid>(root.FindName("B"), "#2");
TestPanel.Children.Add(root);
Assert.IsNull(TestPanel.FindName("A"), "#3");
Assert.IsNull(TestPanel.FindName("B"), "#4");
}
public void UseTwice_ThenOnce()
{
string name = "SuperSecretBrush";
Brush brush = new SolidColorBrush();
brush.SetValue(FrameworkElement.NameProperty, name);
var g1 = new Grid {
Name = "g1", Background = brush
};
var g2 = new Grid {
Name = "g2", Background = brush
};
TestPanel.Children.Add(g1);
Assert.IsNull(TestPanel.FindName(name), "#1");
g2.Background = null;
Assert.IsNull(TestPanel.FindName(name), "#2");
TestPanel.Children.Clear();
TestPanel.Children.Add(g1);
Assert.AreSame(brush, TestPanel.FindName(name), "#3");
}