/// <summary>
/// Sets the internal HelpLayer instance to attach to the root layout panel of the page.
/// </summary>
/// <param name="element">UIElement element.</param>
/// <param name="value">HelpLayer instance.</param>
private static void SetLayer(UIElement element, HelpLayer value)
{
element.SetValue(LayerProperty, value);
}
/// <summary>
/// Attaches the frame to the given element.
/// </summary>
/// <param name="element">FrameworkElement instance.</param>
private static void AttachFrame(FrameworkElement element)
{
// get the HelpLayer instance
var panel = TreeHelpers.GetRootPanel();
if (panel != null)
{
var layer = GetLayer(panel);
if (layer == null)
{
// create a new layer
layer = new HelpLayer();
SetLayer(panel, layer);
layer.AttachToPage(panel);
}
// create a new frame and attach it to the layer
var frame = new HelpFrame();
frame.Attach(element);
}
}
