public override void OnApplyTemplate()
{
base.OnApplyTemplate();
_pageContent = GetTemplateChild(ElementPageContent) as ContentControl;
if (_pageContent == null)
{
throw new MissingMemberException("Expected to find template member: " + ElementPageContent);
}
_menuContent = GetTemplateChild(MenuContent) as Panel;
if (_menuContent == null)
{
throw new MissingMemberException("Expected to find template member: " + MenuContent);
}
AddChildren();
// select the first child
if (Children.Count > 0)
{
NavigationButton button = Children[0] as NavigationButton;
if (button != null)
{
button.IsSelected = true;
SelectionChanged(Children[0] as NavigationButton);
}
}
}
public void SelectionChanged(NavigationButton button)
{
// ignore the case where the selection changed to be "not selected" or is already selected
if (button.IsSelected == false || button == _selectedButton)
{
return;
}
if (_selectedButton != null)
{
_selectedButton.IsSelected = false;
}
_selectedButton = button;
_pageContent.Content = button.Content;
}
public void SelectionChanged(NavigationButton button)
{
// ignore the case where the selection changed to be "not selected" or is already selected
if (button.IsSelected == false || button == _selectedButton)
return;
if (_selectedButton != null)
{
_selectedButton.IsSelected = false;
}
_selectedButton = button;
_pageContent.Content = button.Content;
}
