private void backButton_Click(object sender, EventArgs e)
{
WizardPageEventArgs wpea = PreChangePage(-1);
_activePage.OnWizardBack(wpea);
PostChangePage(wpea);
}
private void PostChangePage(WizardPageEventArgs e)
{
if (!e.Cancel)
{
SetActivePage(e.NewPage);
}
}
public virtual void OnWizardBack(WizardPageEventArgs e)
{
if (WizardBack != null)
{
WizardBack(this, e);
}
}
public virtual void OnWizardNext(WizardPageEventArgs e)
{
if (WizardNext != null)
{
WizardNext(this, e);
}
}
private void nextButton_Click(object sender, EventArgs e)
{
_activePage.Prepare();
WizardPageEventArgs wpea = PreChangePage(+1);
_activePage.OnWizardNext(wpea);
PostChangePage(wpea);
}
/// <summary>
/// 换页预处理
/// </summary>
/// <param name="delta"></param>
/// <returns></returns>
private WizardPageEventArgs PreChangePage(int delta)
{
// Figure out which page is next.
int activeIndex = GetActiveIndex();
int nextIndex = activeIndex + delta;
if (nextIndex < 0 || nextIndex >= Context.Pages.Count)
{
nextIndex = activeIndex;
}
// Fill in the event args.
WizardPage newPage = Context.Pages[nextIndex];
WizardPageEventArgs e = new WizardPageEventArgs {
NewPage = newPage.Name, Cancel = false
};
return(e);
}