<asp:RadioButtonList ID="rbtnCompany" runat="server"
RepeatColumns="4" RepeatDirection="horizontal">
<asp:ListItem Value="1" Text="A"></</SPAN>asp:ListItem>
<asp:ListItem Value="2" Text="B"></</SPAN>asp:ListItem>
<asp:ListItem Value="3" Text="C"></</SPAN>asp:ListItem>
<asp:ListItem Value="4" Text="D"></</SPAN>asp:ListItem>
<asp:RadioButtonList>
<input id="Button1" type="button" value="button" onclick="return RadioButtonList1Changed()"

function RadioButtonList1Changed()
{
var rbtn = document.getElementByIdx_x("rbtnCompany");
//得到所有radio
var list= rbtn .getElementsByTagName_r("input");
for (var i = 0; i < list.length; i++) {
if (vRbtidList[i].checked) {
var text = rbtn .cells[i].innerText;
var value = list[i].value;
alert("选中项的text值为" + text + ",value值为" + value);
}
}
}

alert(document.getElementByIdx_x("rbtnCompany").getElementsByTagName_r("input")[0].value);//结果为1