复选框即可全选,也可单选,怎办?
复选框即可全选,也可一个一个选取,怎办?下面代码只可一个一个选取,怎样改成我要的效果
代码:
<%
do while not rs.eof
%>
<table width= "800 " border= "1 ">
<tr>
<td width= "28 ">
<input type= "checkbox " name= "checkbox " value= " <%=rs( "id ")%> " >
</td>
<td width= "84 ">
<div align= "center "> <font size= "1 "> <%=rs( "testnumber ")%> </font> </div>
</td>
<%
rs.movenext
loop
rs.close
%>
<input type= "hidden " name= "grade " value= " <%=request.querystring( "grade ")%> ">
<input type= "hidden " name= "class " value= " <%=request.querystring( "class ")%> ">
<div align= "center "> <br>
<input type= "submit " name= "Submit " value= " 删除所选中的数据 " style= "border: 1pt solid #EEEEEE ">
<input type= "reset " name= "Submit2 " value= " 重新选择 " style= "border: 1pt solid #EEEEEE ">
[解决办法]
如果有3个复选框 他们的值分别是 a1 a2 a3 注意name必须相同
选中 a1 时 request( "name ") 得到的值是 a1
同时选中 a1 a3 时 request( "name ") 得到的值是 a1,a3
后台你可以用 split 方法把a1,a3变成数组进行操作
[解决办法]
<html>
<head>
<meta http-equiv= "Content-Type " content= "text/html; charset=gb2312 ">
<title> 复选框全选、全不选和反选的效果实现 </title>
<SCRIPT LANGUAGE= "JavaScript ">
<!-- Begin
function checkAll() {
for (var j = 1; j <= 9; j++) {
box = eval( "document.checkboxform.C " + j);
if (box.checked == false) box.checked = true;
}
}
function uncheckAll() {
for (var j = 1; j <= 9; j++) {
box = eval( "document.checkboxform.C " + j);
if (box.checked == true) box.checked = false;
}
}
function switchAll() {
for (var j = 1; j <= 9; j++) {
box = eval( "document.checkboxform.C " + j);
box.checked = !box.checked;
}
}
// End -->
</script>
</head>
<body>
<form name=checkboxform>
<input type=checkbox name=C1 checked> C1 <br>
<input type=checkbox name=C2 checked> C2 <br>
<input type=checkbox name=C3 checked> C3 <br>
<input type=checkbox name=C4 checked> C4 <br>
<input type=checkbox name=C5 checked> C5 <br>
<input type=checkbox name=C6 checked> C6 <br>
<input type=checkbox name=C7 checked> C7 <br>
<input type=checkbox name=C8 checked> C8 <br>
<input type=checkbox name=C9 checked> C9 <br>
<br>
<input type=button value= "全部选中 " onClick= "checkAll() "> <br>
<input type=button value= "全部不选 " onClick= "uncheckAll() "> <br>
<input type=button value= "选择转换 " onClick= "switchAll() "> <br>
</form>
</body>
</html>
