一般 我们在使用TabControl时，需要添加多个tab页，然后把不需要的tab页通过鼠标右键点击ContextMenu菜单的形式进行关闭，下面的代码是直接在tab页上面添加按钮事件，直接点击关闭按钮，就可以关闭tab页。
public class CloseableTabItem : TabItem
{
static CloseableTabItem()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(CloseableTabItem), new FrameworkPropertyMetadata(typeof(CloseableTabItem)));
}
public static readonly RoutedEvent CloseTabEvent =
EventManager.RegisterRoutedEvent("CloseTab", RoutingStrategy.Bubble,
typeof(RoutedEventHandler), typeof(CloseableTabItem));
public event RoutedEventHandler CloseTab
{
add { AddHandler(CloseTabEvent, value); }
remove { RemoveHandler(CloseTabEvent, value); }
}
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
Button closeButton = base.GetTemplateChild("PART_Close") as Button;
if (closeButton != null)
closeButton.Click += new System.Windows.RoutedEventHandler(closeButton_Click);
}
void closeButton_Click(object sender, System.Windows.RoutedEventArgs e)
{
this.RaiseEvent(new RoutedEventArgs(CloseTabEvent, this));
}
}