为动态生成html元素增加事件处理 |
| ［ 作者：佚名 转贴自：网络转载 阅读次数：28 更新时间：2007-11-30 18:34:00 录入：刘光勇 ］ |
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Adding onClick property to dynamicly genertated html element
function klik(){
alert("ppp");
}
function addNewImg(newImageId){
newImg = document.createelement('img');
newImg.id = "image"+newImageId;
newImg = document.getElementById("divimage1").appendChild(newImg);
newImg.onclick=klik
}
it works. The new image is created and after clicking on it "ppp" is alerted.
but when I use this:
function klik(ff){
alert(ff);
}
function addNewImg(newImageId){
newImg = document.createelement('img');
newImg.id = "image"+newImageId;
newImg = document.getElementById("divimage1").appendChild(newImg);
newImg.onclick=klik("ppp");
}
"ppp" is alerted in the moment of executing the statement newImg.onclick=klik("ppp"); and when clicking on the generated image nothing happens, even javascript Console of Firefox stays blind.
function addNewImg(newImageId){
newImg = document.createelement('img');
newImg.id = "image"+newImageId;
newImg = document.getElementById("divimage1").appendChild(newImg);
var onC='ppEdit("image'+newImageId+'","image")';
document.getElementById("image"+newImageId).onclick=new Function(onC);
}
it works
maybe an object detection be great to add too
why?
So browsers that understand document.getElementById,
document.createelement execute the code.
function addNewImg(newImageId){
//object detection check
if (!document.getElementById &&!document.createelement){return;}
newImg = document.createelement('img');
newImg.id = "image"+newImageId;
newImg = document.getElementById("divimage1").appendChild(newImg);
var onC='ppEdit("image'+newImageId+'","image")';
document.getElementById("image"+newImageId).onclick=new Function(onC);
}
alternative solution:
if (!document.getElementById) {return;}
document.getElementById("image"+newImageId).onclick=function(){
ppEdit(this.id, "image");
}
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