Javascript 是否有“提交后”jQuery 选项？
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Is there an "after submit" jQuery option?
提问by polyhedron
I have a form that uploads a file and targets an iframe on the page. When the user clicks submit, I want the file contents to "clear" out.
我有一个上传文件并定位页面上的 iframe 的表单。当用户单击提交时，我希望文件内容“清除”出来。
I tried this
我试过这个
$('#imageaddform').submit(function(){
$('#imagefile').val('');
});
But it clears the form before the submit, so nothing is ever uploaded.
但是它在提交之前清除了表单，因此没有上传任何内容。
Is how do I clear after submit?
提交后如何清除？
采纳答案by lonesomeday
If you have no other handlers bound, you could do something like this:
如果您没有绑定其他处理程序，您可以执行以下操作：
$('#imageaddform').submit(function(e) {
e.preventDefault(); // don't submit multiple times
this.submit(); // use the native submit method of the form element
$('#imagefile').val(''); // blank the input
});
回答by Gondrup
Lonesomeday's solution worked for me but for Google Chrome I found it would still submit empty form data unless I added a timeout like this:
Lonesomeday 的解决方案对我有用，但对于谷歌浏览器，我发现它仍然会提交空表单数据，除非我添加了这样的超时：
$('#imageaddform').submit(function(e) {
e.preventDefault(); // don't submit multiple times
this.submit(); // use the native submit method of the form element
setTimeout(function(){ // Delay for Chrome
$('#imagefile').val(''); // blank the input
}, 100);
});
回答by Martin Jespersen
You could do something like this:
你可以这样做：
$('#imageaddform').submit(function(){
setTimeout(function() {
$('#imagefile').val('');
},100);
});
回答by samarjit samanta
How are u submitting the form? if this is normal form post then then page wont exist in that case i am wondering if u are looking to clear the form before the page refreshses so that when the user comes back he doesn't see the values populated.
你是如何提交表格的？如果这是正常的表单帖子，那么在这种情况下页面将不存在，我想知道您是否希望在页面刷新之前清除表单，以便当用户回来时他看不到填充的值。
If the form is submitted by ajax then you can
如果表单是通过ajax提交的，那么你可以
function(){
$('form1')[0].submit();
clearForm();
}
Did i miss the question?
我错过了这个问题吗？
