javascript - 如何在“提交”按钮onclick事件中取消表单提交？(How do I cancel form submission in submit button onclick event?)

Question

I'm working on an ASP.net web application.(我正在开发ASP.net Web应用程序。)

I have a form with a submit button.(我有一个带有提交按钮的表格。) The code for the submit button looks like <input type='submit' value='submit request' onclick='btnClick();'> .(提交按钮的代码类似于<input type='submit' value='submit request' onclick='btnClick();'> 。) I want to write something like the following:(我想写类似以下内容的东西：) function btnClick() { if (!validData()) cancelFormSubmission(); } How do I do this?(我该怎么做呢？)   ask by Daniel Allen Langdon translate from so

Answer 1

You are better off doing...(你最好做...)

<form onsubmit="return isValidForm()" /> If isValidForm() returns false , then your form doesn't submit.(如果isValidForm()返回false ，则您的表单不提交。) You should also probably move your event handler from inline.(您可能还应该将事件处理程序从内联移动。) document.getElementById('my-form').onsubmit = function() { return isValidForm(); };