My situation involves using a button with ng-style that relies on frm.mybtn.$error.required as follows:
ng-style="frm.mybtn.$error.required?{'border-color':'#a94442'}:''"
I am updating the value of the button from JavaScript, however Angular does not recognize that the required condition is now false. As a result, frm.mybtn.$error.required remains true even after it should have been set to false.
Make sure to execute the JavaScript code within the appropriate scope digest:
$scope.$apply(code to assign value)
If you already have access to the current scope object, you can use:
$scope.$digest(code to assign value)
For further information, please visit the following link: How do I use $scope.$watch and $scope.$apply in AngularJS?
This solution worked well for me, you should give it a try
ng-style="form_user.vEmail.$error.required == true ? {'border-bottom':'1px solid #FF2723'}:''"
To enhance code reusability, consider using the ng-class directive. By creating a class with your desired styles, you can simplify your HTML implementation like so:
<input type="text" ng-model="email" name="email" ng-required="true" ng-class="{ 'required': myForm.email.$error.required }"/>
If you only want to apply the style after user input, utilize the $dirty variable:
<input type="text" ng-model="email" name="email" ng-required="true" ng-class="{ 'required': myForm.email.$dirty && myForm.email.$error.required }"/>
Check out this codepen example.
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