起初,想添加TreeView的樣式,在MouseOver時整行背景變色,但是我目前在XAML無法實現.

搜索了一下,有個方法在后臺也要寫代碼.

參考:http://www.cnblogs.com/bray/archive/2010/05/01/1725457.html

用這個辦法可以解決樣式問題,但是不能方便的復用,就想到做成UserControl.

在UserControl里放入一個TreeView，需要 依賴屬性ItemsSource 和 路由事件SelectedItemChanged

參考：http://www.cnblogs.com/zhouyinhui/archive/2007/10/27/939920.html

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以下是我的部分代碼

UCTreeView.xaml

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View Code <TreeView??x:Name="treeview1"??SelectedItemChanged="treeview1_SelectedItemChanged"?Background="{x:Null}"?/>

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UCTreeView.xaml.cs

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View Code #region?屬性依賴

????????public?static?readonly?DependencyProperty?ItemsSourceProperty?=
????????????DependencyProperty.Register("ItemsSource",?typeof(IEnumerable),?
????????????typeof(UCTreeView),
????????????new?PropertyMetadata(null,new?PropertyChangedCallback(OnItemsSourceChanged)));
??????????
????????public?IEnumerable?ItemsSource
????????{
????????????get?{?return?(IEnumerable)GetValue(ItemsSourceProperty);?}

????????????set?{?SetValue(ItemsSourceProperty,?value);?}
????????}?

????????static?void?OnItemsSourceChanged(object?sender,?DependencyPropertyChangedEventArgs?args)
????????{
????????????if?(sender?!=?null?&&?sender?is?UCTreeView)
????????????{
????????????????UCTreeView?source?=?(UCTreeView)sender;
????????????????source.treeview1.ItemsSource?=?(IEnumerable)args.NewValue;
????????????}
?????????????
????????}
????????#endregion

????????#region?事件路由

????????public?static?readonly?RoutedEvent?SelectedItemChangedEvent?=
????????????EventManager.RegisterRoutedEvent("SelectedItemChanged",?RoutingStrategy.Bubble,?typeof(RoutedPropertyChangedEventHandler<object>),?typeof(UCTreeView));

????????[Description("選擇項改變后發生")]
????????public?event?RoutedPropertyChangedEventHandler<object>?SelectedItemChanged
????????{
????????????add
????????????{
????????????????this.AddHandler(SelectedItemChangedEvent,?value);
????????????}

????????????remove
????????????{
????????????????this.RemoveHandler(SelectedItemChangedEvent,?value);
????????????}
????????}

????????public?void?OnSelectedItemChanged(object?oldValue,?object?newValue)
????????{
????????????RoutedPropertyChangedEventArgs<object>?arg?=
????????????????new?RoutedPropertyChangedEventArgs<object>(oldValue,?newValue,?SelectedItemChangedEvent);?
????????????this.RaiseEvent(arg);?
????????}

????????private?void?treeview1_SelectedItemChanged(object?sender,?RoutedPropertyChangedEventArgs<object>?e)
????????{
???????????????OnSelectedItemChanged((object)e.OldValue,?(object)e.NewValue);

????????}

????????#endregion

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轉載于:https://www.cnblogs.com/star250/archive/2012/02/16/2353680.html

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