I have a form
<form name="formName">
<table>
<tr>
<td><input type="text" ng-model="validate" required/></td>
</tr>
</table>
</form>
<button type="button" class="btn btn-default" ng-click="validate()">save</button>
as you can see, the button is outside the form.. I want to validate the form when I click the button into $scope.validate();
the question is, how can I achieve that using angularjs ?
It does not matter if button is in or outside the form, the validation is performed always when any of the proprties of the model changes. So the only problem that remains is when to display error message.
btw required is from HTML5 ng-required is the attribute you should use.
The code below displays error message when any of the properties changes
<div ng-app="mod">
<div ng-controller='MCtrl'>
<form name="formName" novalidate>
<table>
<tr>
<td>
<input type="text" name="prop" ng-model="model.property" ng-required="true" />
<span ng-show="formName.prop.$error.required">Required</span>
</td>
</tr>
</table>
</form>
<button type="button" class="btn btn-default" ng-click="validate(formName)">save</button>
</div>
mod.controller('MCtrl', function ($scope) {
$scope.model = { property : ''};
$scope.validate = function(form){
alert(form.$valid);
}
});
If youd like to display the errors only when the form is submitted you add one variable to track it like it the code below (note additional variable in ng-show="formName.prop.$error.required && submitted"
<div ng-app="mod">
<div ng-controller='MCtrl'>
<form name="formName" novalidate>
<table>
<tr>
<td>
<input type="text" name="prop" ng-model="model.property" ng-required="true" />
<span ng-show="formName.prop.$error.required && submitted">Required</span>
</td>
</tr>
</table>
</form>
<button type="button" class="btn btn-default" ng-click="validate(formName)">save</button>
</div>
mod.controller('MCtrl', function ($scope) {
$scope.model = { property : ''};
$scope.submitted = false;
$scope.validate = function(form){
$scope.submitted = true;
alert(form.$valid);
}
});
ngMessagesdirective introduced in 1.3 for form validations: yearofmoo.com/2014/05/how-to-use-ngmessages-in-angularjs.html