rdolstIsAuto.ListItem[0].Enabled = “false”;rdolstIsAuto.ListItem[1].Enabled = “false”
设置Enabled属性http://msdn.microsoft.com/zh-cn/library/system.web.ui.webcontrols.webcontrol.enabled%28v=vs.100%29.aspx
rdolstIsAuto.IsEnabled = false;