AngularJS条件ng-disabled不会重新启用 [英] AngularJS conditional ng-disabled does not re-enable

问题描述

如果使用 ng-disabled =truthy_scope_variable有条件禁用文本输入字段，AngularJS将禁用第一次范围变量的字段伪造，但不会在后续更改中启用它。结果，该字段保持禁用状态。我只能假设出现了问题，但是控制台日志是空的。

Given a conditionally disabled text input field using ng-disabled="truthy_scope_variable", AngularJS disables the field the first time the scope variable is falsified, but does not enable it on subsequent changes. As a result, the field remains disabled. I can only assume something went wrong, but the Console log is empty.

真实的范围变量与单选按钮模型相关联，我甚至可以 $ watch 它更改，但输入字段的 ng-disabled 未按预期工作。我已经手动尝试调用 $ apply ，但看起来Angular正在触发DOM更改。

The truthy scope variable is tied to a radio button model and I can even $watch it change, but the input field's ng-disabled is not working as expected. I have manually tried calling $apply, but it looks like Angular is triggering DOM changes.

$scope.new_account = true

单选按钮：

Radio buttons:

<input type="radio" ng-model="new_account" name="register"
 id="radio_new_account" value="true" />

<input type="radio" ng-model="new_account" name="register"
 id="radio_existing_account" value="false" />

有条件禁用的输入栏位：

Conditionally disabled input field:

<input type="password" ng-disabled="new_account" id="login-password"
 name="password" ng-model="password" />

如果我最初设置 $ scope.new_account = false ，该字段被禁用，但从未重新启用。为什么会发生这种情况？

If I initially set $scope.new_account = false, the field is rendered disabled, but never re-enabled. Why is this happening?

推荐答案

有一种替代解决方案可供使用

There is an alternative solution available just use

ng-value

ng-value

 <input type="radio" ng-model="new_account" name="register"
 id="radio_new_account" ng-value="true" />

<input type="radio" ng-model="new_account" name="register"
 id="radio_existing_account" ng-value="false" />
      <input type="password" ng-disabled="new_account" id="login-password"
 name="password" ng-model="password" />

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