仅在$ touch为true时显示的角度ng-messages [英] angular ng-messages only showing when $touched is true

问题描述

我没有做任何太特别的事。

I am not doing anything too special.

我有一个输入，我希望每次按键都验证。如果验证失败，则显示错误。不要等待模糊事件触发$ touch。

I have an input I want validated with every key stroke. If validation fails, display the error. Do not wait for the blur event to trigger the $touched.

我认为这是默认情况，但显然不是。我使用角度材料和角度消息。我这样做是为了检测大写锁定。

I thought this was the default case, but apparently it is not. I am using angular materials along with angular messages. I am doing this for capslock detection.

标记：

<form name="primaryLogin" novalidate>
    <md-content layout-padding layout="column">
        <md-input-container flex>
            <label>Login ID</label>
            <input type="text" required="" name="login" ng-model="primary.loginID" capslock>

            <div ng-messages="primaryLogin.$error">
                <div ng-message="required">
                    Please enter a Login ID.
                </div>

                <div ng-message="capslock">
                    Caps Lock is ON!
                </div>
            </div>

            <pre>{{ primaryLogin | json }}</pre>

        </md-input-container>

    </md-content>
</form>

当我第一次来到页面时，打开大写锁定，然后开始输入，我的错误消息看起来像这样：

When I first come to the page, turn caps lock on, and start typing, my error message looks like so:

{
  "$error": {
    "capslock": [
      {
        "$viewValue": "Q",
        "$validators": {},
        "$asyncValidators": {},
        "$parsers": [
          null
        ],
        "$formatters": [
          null,
          null
        ],
        "$viewChangeListeners": [],
        "$untouched": false,
        "$touched": true,
        "$pristine": false,
        "$dirty": true,
        "$valid": false,
        "$invalid": true,
        "$error": {
          "capslock": true
        },
        "$name": "login",
        "$options": {
          "debounce": 100,
          "updateOnDefault": true
        }
      }
    ]
  },
  "$name": "primaryLogin",
  "$dirty": true,
  "$pristine": false,
  "$valid": false,
  "$invalid": true,
  "$submitted": false,
  "login": {
    "$viewValue": "Q",
    "$validators": {},
    "$asyncValidators": {},
    "$parsers": [
      null
    ],
    "$formatters": [
      null,
      null
    ],
    "$viewChangeListeners": [],
    "$untouched": true,
    "$touched": false,
    "$pristine": false,
    "$dirty": true,
    "$valid": false,
    "$invalid": true,
    "$error": {
      "capslock": true
    },
    "$name": "login",
    "$options": {
      "debounce": 100,
      "updateOnDefault": true
    }
  }
}

所以这似乎按预期工作，但实际错误信息直到模糊才显示事件触发了那个特定的输入..所以我可以使用capslock，输入10个字符，错误对象说明了capsloc k错误是存在的，但由于$ touch不是真的，所以它没有显示。

So this seems to be working as expected, but the actually error message doesn't display until the blur event fires on that particular input.. So I can go in with capslock, type 10 characters, the error object says the capslock error is there, but since $touched isn't true, then it doesn't show.

一旦$ touch设置为true，那么我可以回到输入和一切都像预期的那样。

Once $touched is set to true, then I can go back into the input and everything works like expected.

任何想法？提前致谢！

推荐答案

更改

<div ng-messages="primaryLogin.$error">

到

<div ng-messages="primaryLogin.$error" ng-show="primaryLogin.login.$dirty">

您也可以尝试

<div ng-messages="primaryLogin.$error" ng-show="primaryLogin.login.$touched">

OR

<div ng-messages="primaryLogin.$error" ng-show="primaryLogin.login.$pristine">

你也可以像这样对他们进行有条件的检查：

You can also club them like so for conditional AND check:

<div ng-messages="primaryLogin.$error" ng-show="primaryLogin.login.$dirty && primaryLogin.login.$touched && primaryLogin.login.$pristine"> 

或有条件的OR支票：

<div ng-messages="primaryLogin.$error" ng-show="primaryLogin.login.$dirty || primaryLogin.login.$touched || primaryLogin.login.$pristine">

请逐一尝试以查找符合您个案的情况。

Try the above one by one to find out whichever one meets your case.

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