是否有“提交后”jquery选项？

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.

我有一个表单，用于上传文件并在页面上定位iframe。当用户单击提交时，我希望文件内容“清除”。

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.

但是它会在提交之前清除表单，因此不会上传任何内容。

Is how do I clear after submit?

提交后如何清除？

4 个解决方案

#1

If you have no other handlers bound, you could do something like this:

如果你没有绑定其他处理程序，你可以这样做：

$('#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
});

#2

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Google Chrome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);
});

#3

You could do something like this:

你可以这样做：

$('#imageaddform').submit(function(){
  setTimeout(function() {
    $('#imagefile').val('');
  },100);
});

#4

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？如果这是正常形式的帖子然后页面不会存在，在这种情况下，我想知道你是否想要在页面刷新之前清除表单，以便当用户回来时他没有看到填充的值。

If the form is submitted by ajax then you can

如果表单是由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？

#1