jQuery获取RadioButtonList 的值

$(document).ready(function() {  
    $("#btnSubmit").click(function() {  
        alert($("input[name='RadioButtonList1']:checked").val());  
    });  
});  

 

<asp:RadioButtonList ID="RadioButtonList1" runat="server">  
    <asp:ListItem>1</asp:ListItem>  
    <asp:ListItem>2</asp:ListItem>  
    <asp:ListItem>3</asp:ListItem>  
</asp:RadioButtonList>  
  
<input id="btnSubmit" type="button" value="Submit" />