.NET-TreeView选中节点失去焦点后颜色仍突出显示

public TestLoseFocus()
{
InitializeComponent();
}

private void treeView1_DrawNode(object sender, DrawTreeNodeEventArgs e)
{
e.DrawDefault = true; //我这里用默认颜色即可，只需要在TreeView失去焦点时选中节点仍然突显
}

private void TestLoseFocus_Load(object sender, EventArgs e)
{
treeView1.ExpandAll();
treeView1.HideSelection = false;
//自已绘制
this.treeView1.DrawMode = TreeViewDrawMode.OwnerDrawText;
//this.treeView1.DrawNode += new DrawTreeNodeEventHandler(treeView1_DrawNode);
}