<script type="text/javascript">
function actionEvent(methodname){
var form = document.forms[0];
if(validateIsSelect(form.all, form.productids)){
form.action='';
form.method.value=methodname;
form.submit();
}else{
alert("请选择要操作的记录");
}
}
/**
多选
*/
function allselect(allobj,items){
var state = allobj.checked;
if(items.length){
for(var i=0;i<items.length;i++){
if(!items[i].disabled) items[i].checked=state;
}
}else{
if(!items[i].disabled) items.checked=state;
}
}
/*
* 判断是否选择了记录
*/
function validateIsSelect(allobj,items){
var state = allobj.checked;
if(items.length){
for(var i=0;i<items.length;i++){
if(items[i].checked) return true;
}
}else{
if(items.checked) return true;
}
return false;
}
</script>
.....
<td><INPUT TYPE="checkbox" NAME="newsid" value="${id }"/></td>
.....
<td>
<INPUT TYPE="checkbox" NAME="all" onclick="javascript:allselect(this,this.form.newsid)"/>全选
</td>
如果要多选并删除的话,要对删除按钮进行控制,在没选择任务记录时,删除按钮为灰色即不可用状态,选择记录后为可用,在js代码中加上如下:
//设置删除按钮是否可见
function buttonDisable(){
var checkbox = document.getElementsByName("newsid");
for(var i=0;i<checkbox.length;i++){
if (checkbox[i].checked) {
document.getElementById("sub").disabled=false;
return;
}else{
document.getElementById("sub").disabled=true;
}
}
}
function allselect(allobj,items){
var state = allobj.checked;
if(items.length){
for(var i=0;i<items.length;i++){
if(!items[i].disabled)
{
items[i].checked=state
if(items[i].checked){
document.getElementById("sub").disabled=false;
}
else{
document.getElementById("sub").disabled=true;
}
}
}
}else{
if(!items[i].disabled)
{
items.checked=state;
}
}
}