禁用提交按钮时，表格AngularJS无效 [英] Disable submit button when form invalid with AngularJS

问题描述

我有我的表是这样的：

<form name="myForm">
    <input name="myText" type="text" ng-model="mytext" required />
    <button disabled="{{ myForm.$invalid }}">Save</button>
</form>

正如你可能会看到，按钮如果输入是空的禁用，但是当它包含文本它不会变回启用。我怎样才能使它工作？

As you may see, the button is disabled if the input is empty but it doesn't change back to enabled when it contains text. How can I make it work?

推荐答案

您需要使用您的窗体的名称，以及NG-禁用：的这里有一个Plunker演示

You need to use the name of your form, as well as ng-disabled: Here's a demo on Plunker

<form name="myForm">
    <input name="myText" type="text" ng-model="mytext" required />
    <button ng-disabled="myForm.$invalid">Save</button>
</form>

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