好吧我似乎无法弄清楚为什么这个变量在我的警告框中未定义。我在这里缺少什么?
<html>
<script src="xslt.js"></script>
<script>
var file;
var objecturl;
var files;
var filename="filename goes here";
function handleFileSelect(evt) {
files = evt.target.files; // FileList object
file = files[0];
filename = file.name;
}
function submit() {
alert(filename);
}
document.getElementById('files').addEventListener('change', handleFileSelect, false);
</script>
Select your XML/CCD File(s):<input type="file" id="files" name="files[]" multiple />
<input id="clickMe" type="button" value="View CCD" onclick="submit();" />
<div id="transformResult"></div>
</html>
答案 0 :(得分:1)
试试这个:
<script>
var file;
var objecturl;
var files;
var filename="filename goes here";
function handleFileSelect(evt) {
files = evt.target.files; // FileList object
file = files[0];
filename = file.name;
}
function submit() {
alert(filename);
}
</script>
Select your XML/CCD File(s):<input type="file" id="files" name="files[]" multiple />
<input id="clickMe" type="button" value="View CCD" onclick="submit();" />
<div id="transformResult"></div>
<script>
document.getElementById('files').addEventListener('change', handleFileSelect, false);
</script>
注意我将addEventListener移动到在DOM中加载元素之后运行的脚本。
答案 1 :(得分:0)
在调用input
之前,您必须等待getElementById
字段位于dom中,因此filename
未设置。