我为 JavaScript 中动态添加的文本框添加了 onkeyup javascript...但它似乎不起作用...
var cell4 = row.insertCell(3);
cell4.setAttribute('align','center')
var e3 = document.createElement('input');
e3.type = 'text';
e3.name = 'txtqt' + iteration;
e3.id = 'txtqt' + iteration;
e3.onkeyup = totalAmount(event,this,'tblsample');//Adding this lines doesnt work
e3.size = 10;
cell4.appendChild(e3);
但是当我使用
e3.onkeyup = totalAmount;
它有效...这是我的 javascript 函数,
函数totalAmount(e,obj,tblid)
{
var tbl = document.getElementById(tblid);
//alert(tbl);
var tblRows = tbl.rows.length;
//alert(tblRows);
var result =0;
var str1;
if (obj != null) {
str1 = obj.id;
} else {
str1 = this.id;
}
var lastChar = str1.substring(5,str1.length);
//alert(lastChar);
if(str1=='txtqt'+lastChar)
{
var str2 = 'txtup'+lastChar;
var str3 = 'txtAmount'+lastChar;
var txtDeduct = document.getElementById(str1).value;
var txtAmt = document.getElementById(str2).value;
var txtTotal = document.getElementById(str3);
var totRes = txtAmt*txtDeduct;
//var res = formatNumber(totRes,2)
txtTotal.value = totRes.toFixed(2)
document.getElementById('txttotAmount').value = totRes.toFixed(2);
for(i=1;i<=tblRows;i++)
{
//alert(tblRows);
txtTotID = 'txtAmount'+i;
if(document.getElementById(txtTotID).value!='')
{
result =parseFloat(result) + parseFloat(document.getElementById(txtTotID).value);
//var res= formatNumber(result,2)
document.getElementById('txtTotalAmount').value = result.toFixed(2);
document.getElementById('txttotAmount').value = result.toFixed(2);
//document.getElementById('txtTotalAmount').value = result;
}
}
}
}
您需要将函数调用包装在匿名函数中:
e3.onkeyup = function(event){ totalAmount(event,this,'tblsample'); }
但是,为了实现跨浏览器兼容性,更好的方法是使用 addEvent 函数:
function addEvent(obj,type,fn){
if (obj.addEventListener){
obj.addEventListener(type,fn,false);
} else if(obj.attachEvent){
obj["e"+type+fn]=fn;
obj[type+fn]=function(){
obj["e"+type+fn](window.event);
};
obj.attachEvent("on"+type,obj[type+fn]);
};
};
然后使用该函数添加事件:
addEvent(e3,'keyup',function(event){ totalAmount(event,this,'tblsample'); });
只是一种更好的处理事件的方式。我建议您改用这种方法。
本文内容由网友自发贡献,版权归原作者所有,本站不承担相应法律责任。如您发现有涉嫌抄袭侵权的内容,请联系:hwhale#tublm.com(使用前将#替换为@)