protected override void OnPropertyChanging(RadPropertyChangingEventArgs args)
{
base.OnPropertyChanging(args);
if (args.Property != RadElement.VisibilityProperty || this.tabItems.Count <= 0)
{
return;
}
RadPageViewElement owner = (this.tabItems[0] as RadPageViewItem).Owner;
if (owner == null)
{
throw new NullReferenceException(string.Format("{0} has no parent TabStrip", (object)this.tabItems[0].ToString()));
}
for (int index = 0; index < this.tabItems.Count; ++index)
{
(this.tabItems[index] as RadPageViewItem).Visibility = (ElementVisibility)args.NewValue;
}
if (this.TabItems.Contains((RadItem)(owner.SelectedItem as RibbonTab)))
{
foreach (RibbonTab ribbonTab in (IEnumerable <RadPageViewItem>)owner.Items)
{
if (!this.TabItems.Contains((RadItem)ribbonTab))
{
owner.SelectedItem = (RadPageViewItem)ribbonTab;
break;
}
}
}
owner.InvalidateMeasure();
owner.InvalidateArrange();
owner.UpdateLayout();
}
protected override void OnPropertyChanging(RadPropertyChangingEventArgs args)
{
base.OnPropertyChanging(args);
if (args.Property == RadItem.VisibilityProperty)
{
if (this.tabItems.Count > 0)
{
RadPageViewElement tabStrip = (this.tabItems[0] as RadPageViewItem).Owner;
if (tabStrip == null)
{
throw new NullReferenceException(
string.Format("{0} has no parent TabStrip", this.tabItems[0].ToString()));
}
for (int i = 0; i < this.tabItems.Count; i++)
{
RadPageViewItem currentTab = this.tabItems[i] as RadPageViewItem;
currentTab.Visibility = (ElementVisibility)args.NewValue;
}
if (this.TabItems.Contains(tabStrip.SelectedItem as RibbonTab))
{
foreach (RibbonTab tab in tabStrip.Items)
{
if (!this.TabItems.Contains(tab))
{
tabStrip.SelectedItem = tab;
break;
}
}
}
tabStrip.InvalidateMeasure();
tabStrip.InvalidateArrange();
tabStrip.UpdateLayout();
}
}
}