Showing one error message at a time on AngularJS interface

Currently, I am developing an application using ionic-angular. I am facing a challenge with validation on the 'User Profile' page. The input fields on this page include 'First Name', 'Last Name', 'Cell Phone', 'Password', and others.

My goal is to show only one error message at a time, at the bottom of the last field. While utilizing 'ng-messages', I am receiving individual error messages for each field which is not what I want. How can I display only the first error message?

Below is a snippet of my HTML code:


<!-- Input Fields -->
          <label class="item item-input item-stacked-label">
            <span class="input-label">First Name</span>
            <input type="text" placeholder="jack" name="fName" ng-model="userData.fName" required="required" ng-focus="clearValidation();" ng-class="{ 'errorCls' : profileInfoForm.fName.$invalid, 'noErrorCls' : profileInfoForm.fName.$valid}"/>
          </label>

          <label class="item item-input item-stacked-label">
            <span class="input-label">Last Name</span>
            <input type="text" placeholder="dow" name="lName" ng-model="userData.lName" required="required" ng-focus="clearValidation();" ng-class="{ 'errorCls' : profileInfoForm.lName.$invalid, 'noErrorCls' : profileInfoForm.lName.$valid}"/>
          </label>

          <label class="item item-input item-stacked-label">
            <span class="input-label">Cell Phone Number</span>
            <input type="text" placeholder="185-728-4380" name="cellPhone" ng-model="userData.cellPhone" required="required" />
          </label>

   <!-- Validation Messages -->
        <div ng-messages="(profileInfoForm.$submitted || profileInfoForm.fName.$dirty) && profileInfoForm.fName.$error">
           <span ng-message="required">Please enter first name</span>
        </div>
        <div ng-messages="(profileInfoForm.$submitted || profileInfoForm.lName.$dirty) && profileInfoForm.lName.$error">
           <span ng-message="required">Please enter last name</span>
        </div>
        <div ng-messages="(profileInfoForm.$submitted || profileInfoForm.cellPhone.$dirty) && profileInfoForm.cellPhone.$error">
           <span ng-message="required">Please enter cellphone number</span>
        </div>

I would greatly appreciate your help in resolving this issue. Thank you!

Answer №1

In my opinion, there is potential to condense this further, although time constraints prevent me from doing so at the moment. One approach could involve implementing a straightforward "show" field message to simplify the process. A more effective solution would be to create helper functions like getNgMessages and getFieldDisplayName, eliminating the need for excessive HTML code (such as multiple ng-messages per field). I will demonstrate the improved method below, but writing and testing the JavaScript code will have to wait.

<div ng-messages="(profileInfoForm.$submitted || profileInfoForm.fName.$dirty) && profileInfoForm.fName.$error" ng-show="showErrorMessage('fName')">
    <span ng-message="required">Please enter first name</span>
  </div>
  <div ng-messages="(profileInfoForm.$submitted || profileInfoForm.lName.$dirty) && profileInfoForm.lName.$error" ng-show="showErrorMessage('lName')">
    <span ng-message="required">Please enter last name</span>
  </div>
  <div ng-messages="(profileInfoForm.$submitted || profileInfoForm.cellPhone.$dirty) && profileInfoForm.cellPhone.$error" ng-show="showErrorMessage('cellPhone')">
    <span ng-message="required">Please enter cellphone number</span>
  </div>

Within your controller:

this.showErrorMessage = showErrorMessage;

function showErrorMessage(field){
    if($scope.profileInfoForm.$submitted){
      return false;  
    }
    if($scope.profileInfoForm.fName.$dirty &&  $scope.profileInfoForm.fName.$error){
          return  field=== 'fName';
    }

    if($scope.profileInfoForm.lName.$dirty &&  $scope.profileInfoForm.lName.$error){
          return field=== 'lName';
    }

    if($scope.profileInfoForm.cellPhone.$dirty &&  $scope.profileInfoForm.cellPhone.$error){
          return field=== 'cellPhone';
    }
       return false;
   }

---alternative approach

<div ng-messages="getNgMessage()" >
    <span ng-message="required">Please enter {{getFieldDisplayName()}}</span>
</div>

 <!--
    This alternative method involves returning $error.fName, $error.lName, $error.cellPhone in order within `getNgMessage`. 
   Similarly, for `getFieldDisplayName()`, you return the text corresponding to the invalid field from `getNgMessage`.

   For example:
   fName = 'first name'
   lName = 'last name'
   cellPhone = 'cellphone number'
  -->

Similar questions

If you have not found the answer to your question or you are interested in this topic, then look at other similar questions below or use the search

Automatically forward to m.example.com on mobile devices using nodejs

Is there a way to create a subdomain in Node.js, such as m.example.com, and have it redirect to m.example.com on mobile devices? I've searched for answers but haven't found a satisfactory solution. One suggestion is to use nginx in front of Node, ...

Navigating from child to parent page in Next.js: how can it be done?

Forgive me if this question seems simplistic, I am new to the world of Next.js and React.js. From my understanding, in Next.js, we can organize pages hierarchically, with each xx_page.js file's path serving as its corresponding url route, as noted in ...

Mastering the interaction between jQuery AJAX and PHP arrays

I am working on a jquery ajax request and need to extract data separately from the array returned by the handler. $.ajax({ url : 'fun_val_itmco.php', type : 'POST', data : "agnco="+agnco+"&itmco="+itmco, dataType : 'json' ...

The dynamic value feature in Material UI React's MenuItem is currently experiencing functionality issues

Whenever I use Select in Material UI for React, I encounter an issue where I always receive undefined when selecting from the drop-down menu. This problem seems to occur specifically when utilizing dynamic values with the MenuItem component. If I switch to ...

Send a variety of jQuery element selectors to a function

myFunc() is connected to the document scroll event, resulting in frequent calls. To optimize performance, I intend to store HTML selections in variables and then pass them to the function. However, upon running the code snippet below, an error appears in t ...

Suggestions for activating a particular accordion divider?

I've come across a seemingly simple question that has been causing me some trouble. I am attempting to expand, open, or collapse a specific accordion panel, but have not been able to find an answer so far. Let's say I have three panels identified ...

Having difficulty adding a border to the SlidesJS frame

I am utilizing the SlidesJS jQuery plugin which can be found here. My goal is to add a border around the slider. I adjusted the CSS section like so: #slides .slidesjs-container { margin-bottom:10px; border-color: #ff5566; border-width: 3px; borde ...

Protractor Error Listings

In order to improve error handling in my Protractor tests, I am exploring how to handle exceptions such as No element found using locator: and provide more informative error messages. viewCompanyDocumentPage.getAttachmentType().then(function (type) { ...

Is it possible to condense the coding of a vast array of objects into a more concise format?

Currently working on a personal project in react.js and aiming to write cleaner code. Is there a way to condense this code into just two lines or something similar? I attempted to create objects of arrays like const apps= {app_name:['Maps',&apo ...

Effectively implementing an event observer for dynamically loaded content

I want to set up an event listener that triggers when any of the Bootstrap 3 accordions within or potentially within "#myDiv" are activated. This snippet works: $('#myDiv').on('shown.bs.collapse', function () { //code here }); Howeve ...

Vue Filtering and Pagination Implementation

In Vue pagination, how can you control the number of array objects to be displayed based on a user-selected amount like 10, 15, or 25? I successfully implemented rendering 10 items per page and it's functioning smoothly. ...

Is it possible to adjust the CSS code linked to the HTML tag based on the specific webpage being viewed?

I am facing an issue with the homepage of my website, which uses Scrollmagic.js for smooth scrolling. In order for the sticky footer CSS to work properly on all other pages, the HTML tag needs to have a height of 100%. However, if I add this height value t ...

"Utilizing the connect() and withStyles() methods in React for class components: A step-by-step guide

Looking for ways to utilize connect() and withStyles() in React for a class component? const customStyles = makeStyles(theme => ({...}); const stylesObject = customStyles(); class CustomComponent extends React.Component { ... render() { ...

"Using Js-ctypes to interface with a third-party DLL that returns a string

I have encountered an issue while working with a DLL using js-ctypes, which is written in C. After calling the method that returns a string and trying to access the content of the pointer, Firefox crashes! The following code snippet works perfectly: Fun ...

Exploring the combination of Meteor's Flow router or Iron router with the powerful Angular UI

I am currently working on integrating server-side rendering with distinct root HTML files into my Angular-Meteor project. However, since Angular does not inherently support server-side rendering and the iron router/flow router that enables this feature w ...

Difficulty persisting when removing accents/diacritics from a string in Angular with IE 11

When attempting to utilize the String.normalize("NFD").replace(/[\u0300-\u036f]/g, "") method, I encountered an issue in IE11. ERROR TypeError: The object does not support the property or method "normalize" ...

What are examples of CPU-intensive tasks, such as sorting and searching, that require significant processing power?

When it comes to defining a CPU intensive task in terms of an algorithm or code rather than a specific use case like video editing, what exactly falls into that category? For instance, is sorting, searching, graph traversal, matrix multiplication conside ...

Need help with checking for the presence of a value in a multidimensional array using Node.js/Javascript?

Imagine you have an array structured like this: $game = Array ( ['round'] => Array ( ['match'] => Array ( ['player_2'] => Array ( ...

Discover the secret to instantly displaying comments after submission without refreshing the page in VueJS

Is there a way to display the comment instantly after clicking on the submit button, without having to refresh the page? Currently, the comment is saved to the database but only appears after refreshing. I'm looking for a solution or syntax that can h ...

I have noticed that the Javascript code is being loaded prior to the completion of my HTML/CSS page for some unknown

I am completely new to the world of web development. I'm encountering an issue where my JavaScript code (specifically alerts) is loading before my HTML/CSS page has fully loaded. I've been using sample alerts to test this out, and ideally, they s ...