/// <summary>
/// Extends BeginInvoke so that when a state object is not needed, null does not need to be passed.
/// <example>
/// fragmentnavigationeventhandler.BeginInvoke(sender, e, callback);
/// </example>
/// </summary>
public static IAsyncResult BeginInvoke(this FragmentNavigationEventHandler fragmentnavigationeventhandler, Object sender, FragmentNavigationEventArgs e, AsyncCallback callback)
{
if (fragmentnavigationeventhandler == null)
{
throw new ArgumentNullException("fragmentnavigationeventhandler");
}
return(fragmentnavigationeventhandler.BeginInvoke(sender, e, callback, null));
}
/// <summary>
/// Raises the Fragment Navigation event synchronously
/// </summary>
/// <param name="fragment">The fragment that was navigated to</param>
private void RaiseFragmentNavigation(string fragment)
{
FragmentNavigationEventHandler eventHandler = this.FragmentNavigation;
if (eventHandler != null)
{
FragmentNavigationEventArgs eventArgs = new FragmentNavigationEventArgs(fragment);
eventHandler(this, eventArgs);
}
Page p = this._host.Content as Page;
if (p != null)
{
FragmentNavigationEventArgs eventArgs = new FragmentNavigationEventArgs(fragment);
p.InternalOnFragmentNavigation(eventArgs);
}
}
