protected virtual bool OnSelectedItemChanging(BackstageTabItem backstageTabItem)
{
if (this.SelectedItemChanging == null)
{
return(false);
}
BackstageItemChangingEventArgs e = new BackstageItemChangingEventArgs(backstageTabItem, this.selectedItem);
this.SelectedItemChanging((object)this, e);
return(e.Cancel);
}
protected virtual bool OnSelectedItemChanging(BackstageTabItem backstageTabItem)
{
if (this.SelectedItemChanging != null)
{
BackstageItemChangingEventArgs args = new BackstageItemChangingEventArgs(backstageTabItem, this.selectedItem);
this.SelectedItemChanging(this, args);
return(args.Cancel);
}
return(false);
}