public void When_ManuallyApplyTemplate_OutOfVisualTree()
{
var current = FeatureConfiguration.Control.UseLegacyLazyApplyTemplate;
try
{
FeatureConfiguration.Control.UseLegacyLazyApplyTemplate = true;
var templatedRoot = default(UIElement);
var sut = new MyControl
{
Template = new ControlTemplate(() => templatedRoot = new Grid())
};
Assert.IsNull(sut.TemplatedRoot);
Assert.IsNull(templatedRoot);
var applied = sut.ApplyTemplate();
Assert.IsTrue(applied);
Assert.IsNotNull(sut.TemplatedRoot);
Assert.AreSame(templatedRoot, sut.TemplatedRoot);
}
finally
{
FeatureConfiguration.Control.UseLegacyLazyApplyTemplate = current;
}
}
public void CustomDataTemplate()
{
MyControl c = (MyControl)XamlReader.Load(@"
<x:MyControl xmlns=""http://schemas.microsoft.com/client/2007""
xmlns:x=""clr-namespace:MoonTest.System.Windows;assembly=moon-unit"">
<x:MyControl.ContentTemplate>
<x:MyDataTemplate>
<Rectangle />
</x:MyDataTemplate>
</x:MyControl.ContentTemplate>
</x:MyControl>");
Rectangle r = new Rectangle();
c.Content = r;
c.ApplyTemplate();
// Check that the visual tree matches up:
// MyControl->ContentPresenter->Rectangle
CreateAsyncTest(c,
() =>
{
Assert.VisualChildren(c,
new VisualNode <ContentPresenter>("#1",
new VisualNode <Rectangle>("#2")
)
);
}
);
}
public void When_ManuallyApplyTemplate()
{
var current = FeatureConfiguration.Control.UseLegacyLazyApplyTemplate;
try
{
FeatureConfiguration.Control.UseLegacyLazyApplyTemplate = true;
var templatedRoot = default(UIElement);
var sut = new MyControl
{
Template = new ControlTemplate(() => templatedRoot = new Grid())
};
Assert.IsNull(sut.TemplatedRoot);
Assert.IsNull(templatedRoot);
new Grid().Children.Add(sut); // This kind-of simulate that the control is in the visual tree.
Assert.IsNull(sut.TemplatedRoot);
Assert.IsNull(templatedRoot);
var applied = sut.ApplyTemplate();
Assert.IsTrue(applied);
Assert.IsNotNull(sut.TemplatedRoot);
Assert.AreSame(templatedRoot, sut.TemplatedRoot);
}
finally
{
FeatureConfiguration.Control.UseLegacyLazyApplyTemplate = current;
}
}
public void When_ManualyApplyTemplate_OutOfVisualTree()
{
var templatedRoot = default(UIElement);
var sut = new MyControl
{
Template = new ControlTemplate(() => templatedRoot = new Grid())
};
Assert.IsNull(sut.TemplatedRoot);
Assert.IsNull(templatedRoot);
var applied = sut.ApplyTemplate();
Assert.IsFalse(applied);
Assert.IsNull(sut.TemplatedRoot);
Assert.IsNull(templatedRoot);
}
public void When_ManualyApplyTemplate()
{
var templatedRoot = default(UIElement);
var sut = new MyControl
{
Template = new ControlTemplate(() => templatedRoot = new Grid())
};
Assert.IsNull(sut.TemplatedRoot);
Assert.IsNull(templatedRoot);
new Grid().Children.Add(sut); // This kind-of simulate that the control is in the visual tree.
Assert.IsNull(sut.TemplatedRoot);
Assert.IsNull(templatedRoot);
var applied = sut.ApplyTemplate();
Assert.IsTrue(applied);
Assert.IsNotNull(sut.TemplatedRoot);
Assert.AreSame(templatedRoot, sut.TemplatedRoot);
}