[VB.NET]listview的BackColor问题

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listview的BackColor问题
listview中设置单击一行后高亮显示,可是单击第二次时,第一次单击的结果还在,
怎么才能消除掉?，让每单击一次，高亮显示一行。
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http://www.syncfusion.com/FAQ/WindowsForms/FAQ_c90c.aspx#q1006q
First,
How can I tell which column (subitem) has been clicked on in my listview?
Second
ListViewItem item1 = new ListViewItem( item1 ,0);
//this line makes things work
item1.UseItemStyleForSubItems = false;
//set fore & back color of next sub item
item1.SubItems.Add( 1 , Color.Black, Color.LightGreen, Font);
item1.SubItems.Add( 44 );
item1.SubItems.Add( 3 );
//As long as UseItemStyleForSubItems is false, you can later set the colors with code such as
item1.SubItems[2].BackColor = Color.Pink;
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