/// <summary>
/// Steps to the specified page.
/// </summary>
/// <param name="nextPage">
/// The page to go.
/// If the value is <c>null</c>, the wizard steps to the next page or finishes the wizard if the current page is the last one.
/// </param>
/// <seealso cref="NextPage()"/>
public virtual void NextPage(WizardPage nextPage)
{
if (nextPage == null)
{
if (CurrentPage == Pages.Last() || CurrentPage.IsFinishPage)
{
Finish();
return;
}
}
else if (!Pages.Contains(nextPage))
{
throw new ArgumentException(
"When specifying a value for nextPage, it must already be in the Pages collection.", "nextPage");
}
if (CurrentPage == null || CurrentPage.CommitPage())
{
if (!DesignerProperties.GetIsInDesignMode(this))
{
pageHistory.Push(CurrentPage);
}
CurrentPage = nextPage ?? strategy.GetNextPage(this);
}
}
