C# treeview在焦点失去时高亮显示

this.g_treeViewDevice.HideSelection = false; this.g_treeViewDevice.DrawMode = TreeViewDrawMode.OwnerDrawText; this.g_treeViewDevice.DrawNode += new DrawTreeNodeEventHandler(g_treeViewDevice_DrawNode);   //在绘制节点事件中，按自已想的绘制 private void g_treeViewDevice_DrawNode(object sender, DrawTreeNodeEventArgs e) { e.DrawDefault = true; //用默认颜色，只需要在TreeView失去焦点时选中节点仍然突显 return; }