如何在我自己的TreeViewItem上显示选择? WPF [英] How to show selection on my own TreeViewItem? WPF

问题描述

我编写了自己的TreeViewItem并覆盖MeasureOverride，ArrangeOverride，VisualChildrenCount，GetVisualChild，LogicalChildren:

I wrote my own TreeViewItem and override MeasureOverride, ArrangeOverride, VisualChildrenCount, GetVisualChild, LogicalChildren:

public class MyTreeViewItem : TreeViewItem
{

MyControl myControl = new MyControl() // MyControl includes TextBlock 

public MyTreeViewItem ()
{
this.AddLogicalChild(myControl);
this.AddVisualChild(myControl);

}
//...
}

当我将此项目添加到TreeView项目集合中时，它可以正确显示，并且无需任何操作即可完成我想要的操作.当我单击项目时，它会升起OnSelected，但不会显示在选择项目框架中.如果我使用
control.OverridesDefaultStyle = true，它仅显示没有框架的白色文本.如何从选择视图的项目继承到该项目的子控件?还是您知道其他更好的方法来在我的控件上显示选择内容?

When I add this item to TreeView items collection it shows correctly and do what I want without one thing. When I click on item it rise OnSelected but it doesn''t show in selection item frame. If I use
control.OverridesDefaultStyle = true it shows only white text without frame. How can I inherit from item my selection view to my child control in this item? Or do you know other, better way to show selection on my control?

推荐答案

我想这时您需要使用此事件来在控件周围绘制自己的框项目.

I imagine at this point you need to use this event to draw your own box around the item.

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