寻找最有效的方法来将取消时的表单值恢复为原始值

Question

I have a form with a dynamically-generated group of fields - backend is php/mySQL, and the form is created by reading in data from a table and creating a group of fields for each record. The form has a bit of javascript onSubmit that confirms whether the user really wants to save their changes, but I'm having trouble reverting to the original values if they say that they don't want to save. Reloading the page from the database is not an option.

Answer 1

Unless you're doing something wildly unconventional, try:

<input type="reset" value="Cancel" />

Or if you need to do it in javascript:

document.yourform.reset()

Answer 2

如果无法往返服务器，我想说的唯一解决方法是将表单字段的原始值保留在javascript中（变量，数组，最有意义的变量）并使用这些将重新填充表单字段。

Answer 3

On the initial loading of the form store the values in "hidden" input fields. Use the values of these hidden fields when you cancel the form.