/// <summary>
/// Remove the first page of the backstack with optional pageToken and parameter
/// </summary>
/// <param name="pageToken"></param>
/// <param name="parameter"></param>
public void RemoveFirstPage(string pageToken = null, object parameter = null)
{
PageStackEntry page;
if (pageToken != null)
{
var pageType = _navigationResolver(pageToken);
if (parameter != null)
{
page = _frame.BackStack.FirstOrDefault(x => x.SourcePageType == pageType && x.Parameter.Equals(parameter));
}
else
{
page = _frame.BackStack.FirstOrDefault(x => x.SourcePageType == pageType);
}
}
else
{
page = _frame.BackStack.FirstOrDefault();
}
if (page != null)
{
_frame.RemoveBackStackEntry(page);
}
}