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发表时间：2008-12-25
最后修改：2008-12-25
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>javascript check box 全选及部分选择</title>
<script type="text/javascript">
var Erit;
window["undefined"]=window["undefined"];
if (!Erit) {
Erit = {};
} else if (typeof Erit != "object") {
throw new Error("This namespace has been registered.");
} else if (Erit.newClass) {
throw new Error("The newClass has been created.");
}
Erit.SetCheckAll = function (){};
Erit.addLoadEvent = function(obj, evt, fn){
if(obj.addEventListener) {
obj.addEventListener(evt, fn, false);
}
else if(obj.attachEvent) {
obj.attachEvent('on'+evt, fn);
}
};
Erit.SetCheckAll.prototype = {
checkObj : null,
flag : 0,
init: function(name, eid){
this.checkObj = this.getInputList(name);
var C = this.checkObj;
var cl = C.length;
var oThis = this;
this.flag = 0;
var Eid = this.get(eid);
this.get(eid).onclick = function (){
oThis.setEvent(this,C);
};
for (var i = 0;i < cl;i++){
C[i].onclick = function (){
oThis.setChAllStatus(this,Eid,cl);
}
}
},
get: function(id){
return document.getElementById(id);
},
getInputList: function(name){
return document.getElementsByName(name);
},
setEvent: function(oThis, C){
var cl = C.length;
if (oThis.checked) {
for (var i = 0; i < cl; i++) {
C[i].checked = true;
if (this.flag < cl) {
this.flag++;
}
}
} else if (!oThis.checked) {
for (var j = 0; j < cl; j++) {
C[j].checked = false;
if (this.flag > 0) {
this.flag--;
}
}
}
},
getSelectValue:function (){
var chObj = this.checkObj;
var cl = chObj.length;
var chva = [];
for (var i = 0;i < cl;i++){
if(chObj[i].checked == true){
chva.push(chObj[i].value);
}
}
return chva;
},
setChAllStatus:function (oThis,e,l){
if (oThis.checked == true){
if (this.flag <= l) {
this.flag++;
}
} else if (oThis.checked == false){
if (this.flag >= 0) {
this.flag--;
}
}
for (var j = 0;j < l;j++){
if (this.flag == l) {
e.checked = true;
} else {
e.checked = false;
}
}
}
};
Erit.addLoadEvent(window,"load",function (){
var er = new Erit.SetCheckAll();
er.init("chk","chk5");
er.get("btn1").onclick = function (){
alert(er.getSelectValue());
}
});
</script>
</head>
<body>
<table width="100%" cellpadding="0" cellspacing="0">
<tr>
<td>
<input type="checkbox" id="chk1" name="chk" value="1" />
</td>
<td>
aaaaaa
</td>
</tr>
<tr>
<td>
<input type="checkbox" id="chk1" name="chk" value="1" />
</td>
<td>
aaaaaa
</td>
</tr>
<tr>
<td>
<input type="checkbox" id="chk2" name="chk" value="1" />
</td>
<td>
aaaaaa
</td>
</tr>
<tr>
<td>
<input type="checkbox" id="chk3" name="chk" value="1" />
</td>
<td>
aaaaaa
</td>
</tr>
<tr>
<td>
<input type="checkbox" id="chk4" name="chk" value="1" />
</td>
<td>
aaaaaa
</td>
</tr>
<tr>
<td>
<input type="checkbox" id="chk5" name="chk5" />全选
</td>
<td>
</td>
</tr>
</table>
<input type="button" id="btn1" name="btn1" value="ok"/>
</body>
</html>
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推荐链接
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| 返回顶楼 | |
|
发表时间：2008-12-25
jquery
$(":checkbox").attr('checked','checked'); $(":checkbox").removeAttr('checked'); |
| 返回顶楼 | |
|
发表时间：2008-12-30
ayeah 写道 jquery $(":checkbox").attr('checked','checked'); $(":checkbox").removeAttr('checked'); 自己动手，丰衣足食。 |
| 返回顶楼 | |
|
发表时间：2009-07-27
$(":checkbox")
这是取1个checkbox的值呀你还是去一组checkbox的值？ |
| 返回顶楼 | |
