在提交后单击按钮，然后发布表单时，做一些js的事情 [英] do some js stuff when submit post the button is clicked and then post the form

问题描述

我有一个< input type ="submit">在其中
现在，我想在将表单发布到其操作URL之前进行一些客户端验证.我该怎么做呢.在此先感谢
我也想删除自动插入的字段__VIEWSTATE，__EVENTVALIDATION，因为它们没有任何作用
所以我该怎么做

i have a form with a <input type="submit"> in it
now i want to do some client side validation before the form is posted to its action url. how do i do this. thanks in advance
also i want to remove the automatically inserted fields __VIEWSTATE, __EVENTVALIDATION, as they dont serve me any purpose
so how do i do this

推荐答案

，您需要在表单标签上提交.看下面

< form action ="http://www.devinrolsen.com/" method ="post" onsubmit ="return validate();" name ="simpleForm">

在javascript中，您需要编写函数validate()，如果表单值确定，该函数将返回true，否则返回false

you need to onsubmit on form tag. Look at below

<form action="http://www.devinrolsen.com/" method="post" onsubmit="return validate();" name="simpleForm">

In javascript, you need to write the function validate() which will return true if the form values are OK otherwise return false

为什么不进行服务器端验证?有很多好处.由于它是.NET和C#，因此它可以更灵活，更容易开发. Javascrips通常需要花费更多的开发时间才能达到数量级.使用ASP.NET，您可以轻松地重新生成带有验证结果的同一页面，并将其呈现给用户.

—SA

Why not server-side validation? There are many benefits. It can be more flexible and easier to develop as this is .NET and C#. Javascrips usually takes more development time be the order of magnitude. With ASP.NET you can easily re-generate the same page with validation results and present it back to the user.

—SA

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