检查网页表单值是否已更改 [英] Check if web form values have changed

问题描述

我有一个多步表单，用户可以导航到任何页面来修改或添加信息。有一个菜单显示当前的进度，用户已完成的步骤，并允许导航到任何已完成或未决的步骤。

尽管有一个大按钮保存并继续，一些用户点击此菜单进一步浏览。我必须检查 - 如果表格中的值已更改并询问：保存更改？是/否。

建议我检查表单值是否已更改，最好的方法是什么（使用最少的客户端JavaScript代码）？

稍后编辑：

我忘记说多步骤表单在步骤之间使用回发。

解决方案

jQueryDirty Form插件可能会帮助您在这里：

http://plugins.jquery.com/project/dirtyform

I have a multi-step form and user can navigate to any page to modify or add information. There is a menu that shows the current progress, the steps the user has completed, and allows to navigate to any completed or pending step.

In spite of a big button "Save and Continue" some users click this menu to navigate further. I have to check - if values have changed in a form and ask: "Save changes? Yes/No".

What is the best way (with minimum client-side JavaScript code) you suggest me to check if form values have changed?

Edited a bit later:

I forgot to tell that the multi-step form uses postback between steps.

解决方案

The jQuery "Dirty Form" plugin may help you out here:

http://plugins.jquery.com/project/dirtyform

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