public void Detach()
{
var visualGroup = VisualStateUtilities.GetVisualStateGroups(StatefulElement).First(group => group.Name == Group);
visualGroup.CurrentStateChanged -= OnVisualStateChanged;
AssociatedObject = null;
}
public void Attach(DependencyObject associatedObject)
{
StatefulElement = (FrameworkElement)associatedObject;
var visualGroup = VisualStateUtilities.GetVisualStateGroups(StatefulElement).First(group => group.Name == Group);
visualGroup.CurrentStateChanged += OnVisualStateChanged;
}
public void GetVisualStateGroups_UserControlControlWithChildStates_ReturnsChildStates()
{
Grid stateGrid = VisualStateHelper.CreateObjectWithStates <Grid>();
UserControl userControl = CreateUserControlWithContent(stateGrid);
using (new StubWindow(userControl))
{
IList vsgs = VisualStateUtilities.GetVisualStateGroups(userControl);
Assert.AreEqual(vsgs.Count, 1, "Should find 1 VisualStateGroup on the UserControl");
}
}
private void HookUptoCompletedEvent(FrameworkElement stateTarget, string stateName)
{
if (VisualStateChangedCommand != null)
{
_visualStateGroupOfTheStateName = VisualStateUtilities.GetVisualStateGroups(stateTarget)
.OfType <VisualStateGroup>()
.FirstOrDefault(vsg => vsg.States.OfType <VisualState>().Any(vs => vs.Name == stateName));
if (_visualStateGroupOfTheStateName != null)
{
_visualStateGroupOfTheStateName.CurrentStateChanged += OnVisualStateGroupCurrentStateChanged;
}
}
}