时间:2020-10-11 10:47:04 | 栏目:JavaScript代码 | 点击:次
如下所示:
<%@ Page language="c#" Codebehind="WebForm1.aspx.cs" AutoEventWireup="false" Inherits="ajaxselect.OnmouseTitle.WebForm1" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" > <HTML> <HEAD> <title>WebForm1</title> <meta content="Microsoft Visual Studio .NET 7.1" name="GENERATOR"> <meta content="C#" name="CODE_LANGUAGE"> <meta content="JavaScript" name="vs_defaultClientScript"> <meta content="http://schemas.microsoft.com/intellisense/ie5" name="vs_targetSchema"> <script language="javascript"> function getvalue() { var b=document.all.rbtid.length var a=document.getElementById("rbtid").cells.length; //alert(b);结果为5 //alert(a);结果为4 //for(var i=0;i<b-1;i++)这样也行 for(var i=0;i<a;i++) { var ss="rbtid_"+i; var aa=document.getElementById(ss).value; //if(eval('document.all.rbtid_'+i).checked==true) //这样也行 eval()函数能将数据符串转成js运行 var bb=document.getElementById(ss); if(document.getElementById(ss).checked) //注意checked不能写成Checked,要不然不成功 { alert(aa); break; } } }
或者用第二种方法:
//得到radiobuttonlist var vRbtid=document.getElementById("rbtid"); //得到所有radio var vRbtidList= vRbtid.getElementsByTagName("INPUT"); for(var i = 0;i<vRbtidList.length;i++) { if(vRbtidList[i].checked) { var text =vRbtid.cells[i].innerText; var value=vRbtidList[i].value; alert("选中项的text值为"+text+",value值为"+value); } }
此方法中,RadioButtonList在客户端被看成成了table,通过getElementsByTagName("INPUT")方法获取它的所有子radio,然后循环每个radio,再通过cells获取radio的text值。
</script> </HEAD> <body MS_POSITIONING="GridLayout"> <form id="Form1" method="post" runat="server"> <FONT face="宋体"> <asp:radiobuttonlist id="rbtid" style="Z-INDEX: 101; LEFT: 8px; POSITION: absolute; TOP: 8px" runat="server" Width="216px" Height="176px" name="rbtid"> <asp:ListItem Value="0">0</asp:ListItem> <asp:ListItem Value="1" Selected>1</asp:ListItem> <asp:ListItem Value="2">2</asp:ListItem> <asp:ListItem Value="3">3</asp:ListItem> </asp:radiobuttonlist><INPUT style="Z-INDEX: 102; LEFT: 184px; POSITION: absolute; TOP: 256px" onclick="getvalue()" type="button" value="Button"></FONT> </form> </body> </HTML>