jquery判断RadioButtonList和RadioButton中是否有选中项示例 - Web前端

复制代码 代码如下:
<PRe class="html" name="code"> <%--Body 代码--%>
<div>
<asp:radioButtonlist ID="RadioButtonList1" runat="server">
<asp:ListItemvalue="A">a</asp:ListItem>
<asp:ListItem Value="B">b</asp:ListItem>
</asp:RadioButtonList>

<asp:RadioButton ID="RadioButton1" GroupName="RBTn" text="男" runat="server" Checked="true" />
<asp:RadioButton ID="RadioButton2" GroupName="RBtn" Text="女" runat="server" />

<asp:Button ID="Button1" runat="server" Text="Button" OnclientClick="Button1_ClientClick()"></asp:Button>
</div></pre>

复制代码 代码如下:
<pre class="csharp" name="code"><%--head 代码--%>
<script language="javascript" type="text/JavaScript" src="JS/JQuery-1.9.1.js"></script>
<script language="Javascript" type="text/javascript">

function Button1_ClIEntClick()
{
alert($("input[name='RadioButtonList1']:checked").val()); // 若都没有选中，则弹出“undefined”，若有选中的，则弹出对应的 Value 值
if(document.getElementById("RadioButton1").checked==true) // 若RadioButton1被选中
{
alert($("#RadioButton1:checked").val()); //弹出 RadioButton1
alert($("#RadioButton2:checked").val()); //弹出 undefined
alert($("#RadioButton1:checked").val()=="RadioButton1"); //弹出 true
}
returnfalse; //暂时不用传到后台
}
</script>
</pre>

标签：示例WebRadioButtonRadioButtonListjquery