apply regex patterns on custom form validation in Salesforce lwc -- w3web.net

LWC regex pattern expression on custom form validation for Phone, Email & Pincode on click submit button Uses of “lightning-input” elements in Salesforce Lightning Web Component – LWC | How to apply regex patterns for Email, Phone & Pincode on custom form validation and clear input field on button click in Salesforce LWC

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Hey guys, today in this post we are going to learn about How to apply regex patterns for Email, Phone & Pincode on custom form validation and clear input field on button click in Salesforce LWC.

Files we used to create custom form validation in LWC

lwcRegexFormValidation.html LWc HTML File Template HTML file for used to create custom form validation with regex pattern in Salesforce LWC
lwcRegexFormValidation.js LWC JavaScript File It is holding action function that fire on click button and diaplay required error message.
lwcRegexFormValidation.js-meta.xml XML Meta File It is used to where this lightning web component file you want to display as like lightning__AppPage, lightning__RecordPage, lightning__HomePage.

Final Output

apply regex patterns on custom form validation in Salesforce lwc -- w3web.net

 

You can download file directly from github by Click Here.

 
 

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  • Find the below steps

⇒ Create Lightning Web Component HTML

Step 1:- Create Lightning Web Component HTML ➡ lwcRegexFormValidation.html

SFDX:Lightning Web Component ➡ New ➡ lwcRegexFormValidation.html

lwcRegexFormValidation.html [Lightning Web Component HTML]

  1.    <template>
  2. <lightning-card>
  3.     <div class="slds-p-around_medium">
  4.         <h3 class="slds-text-heading_medium"><lightning-icon icon-name="custom:custom85" size="small"></lightning-icon> <strong style="color:#270086; font-size:13px;"> Crearte Registration Form in Lightning Web Component (LWC) </strong></h3>
  5.          <br/><br/>
  6.         <div class="slds-grid slds-wrap">
  7.             <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--small">
  8.                 <lightning-input name="firstName" class="reqInpFld" type="text" label="First Name" required></lightning-input>
  9.             </div>
  10.             <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--small">
  11.                 <lightning-input name="lastName" class="reqInpFld" type="text" label="Last Name" required></lightning-input>
  12.             </div>
  13.             <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--small">
  14.             <lightning-input name="email" class="reqInpFld" type="email" label="Email" pattern="[A-Za-z0-9._-]+@[a-z0-9-]+.[a-z]{2,}$" message-when-pattern-mismatch="Please enter a valid email" required></lightning-input>
  15.         </div>
  16.         <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--small">
  17.             <lightning-input name="phone" class="reqInpFld" type="tel" label="Phone" pattern="[0-9]{3}-[0-9]{3}-[0-9]{4}$" message-when-pattern-mismatch="Please enter a valid phone number" required></lightning-input>
  18.         </div>   
  19.         <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--small">
  20.             <lightning-input name="pincode" class="reqInpFld" type="number" label="Pin Code" min="1000" max="999999" message-when-range-overflow="Please enter a correct pincode" message-when-range-underflow="Please enter a correct pincode" required></lightning-input>
  21.         </div>
  22.             <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--small">
  23.                 <lightning-input name="password" class="reqInpFld" type="password" label="Password" required></lightning-input>
  24.             </div>
  25.             <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--small">
  26.                 <lightning-input name="company" class="reqInpFld" type="text" label="Company" required></lightning-input>
  27.             </div>
  28.             <div class="slds-col slds-size_6-of-12 slds-p-horizontal--small slds-m-bottom--small">
  29.             <lightning-input name="City" class="reqInpFld" type="text" label="City" required></lightning-input>
  30.         </div>        
  31.         </div>
  32.         <div class="slds-grid slds-wrap">
  33.             <div class="slds-col slds-size_12-of-12 slds-text-align--center">                
  34.                 <lightning-button variant="brand" label="Submit" onclick={submitRegAction}></lightning-button>  
  35.             </div>
  36.         </div>
  37.         <br/><br/>
  38.    <!--Start RelatedTopics Section-->
  39. <div style="border:1px #ddd solid; padding:10px; background:#eee; margin:40px 0;">
  40.  
  41.             <p data-aura-rendered-by="435:0"><img src="https://www.w3web.net/wp-content/uploads/2021/05/thumbsUpLike.png" width="25" height="25" style="vertical-align:top; margin-right:10px;" data-aura-rendered-by="436:0"><strong data-aura-rendered-by="437:0"><span style="font-size:16px; font-style:italic; display:inline-block; margin-right:5px;">Don't forget to check out:-</span><a href="https://www.w3web.net/" target="_blank" rel="noopener noreferrer" style="text-decoration:none;" data-aura-rendered-by="440:0">An easy way to learn step-by-step online free Salesforce tutorial, To know more Click  <span style="color:#ff8000; font-size:18px;" data-aura-rendered-by="442:0">Here..</span></a></strong></p>
  42.  
  43.             <br/><br/>
  44.             <p data-aura-rendered-by="435:0"><img src="https://www.w3web.net/wp-content/uploads/2021/07/tickMarkIcon.png" width="25" height="25" style="vertical-align:top; margin-right:10px;" data-aura-rendered-by="436:0"><strong data-aura-rendered-by="437:0"><span style="font-size:17px; font-style:italic; display:inline-block; margin-right:5px; color:rgb(255 128 0);">You May Also Like →</span> </strong></p>
  45.             <div style="display:block; overflow:hidden;"> 
  46.                 <div style="width: 50%; float:left; display:inline-block">
  47.                     <ul style="list-style-type: square; font-size: 16px; margin: 0 0 0 54px; padding: 0;"> 
  48.                         <li><a href="https://www.w3web.net/lwc-get-set-lightning-checkbox-value/" target="_blank" rel="noopener noreferrer">How to get selected checkbox value in lwc</a></li>
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  50.                         <li><a href="https://www.w3web.net/create-lightning-datatable-row-actions-in-lwc/" target="_blank" rel="noopener noreferrer">how to create lightning datatable row actions in lwc</a></li>
  51.                         <li><a href="https://www.w3web.net/if-and-else-condition-in-lwc/" target="_blank" rel="noopener noreferrer">how to use if and else condition in lwc</a></li>
  52.                         <li><a href="https://www.w3web.net/get-selected-radio-button-value-and-checked-default-in-lwc/" target="_blank" rel="noopener noreferrer">how to display selected radio button value in lwc</a></li>
  53.                     </ul>
  54.             </div>
  55.  
  56.             <div style="width: 50%; float:left; display:inline-block">
  57.                     <ul style="list-style-type: square; font-size: 16px; margin: 0 0 0 54px; padding: 0;"> 
  58.                         <li><a href="https://www.w3web.net/display-account-related-contacts-lwc/" target="_blank" rel="noopener noreferrer">display account related contacts based on account name in lwc</a></li>
  59.                         <li><a href="https://www.w3web.net/create-lightning-datatable-row-actions-in-lwc/" target="_blank" rel="noopener noreferrer">how to insert a record of account Using apex class in LWC</a></li>
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  61.                         <li><a href="https://www.w3web.net/edit-save-and-remove-rows-dynamically-in-lightning-component/" target="_blank" rel="noopener noreferrer">how to edit/save row dynamically in lightning component</a></li>
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  63.                     </ul>
  64.                 </div>
  65.                <div style="clear:both;"></div> 
  66.                <br/>
  67.                 <div class="youtubeIcon">
  68.                     <a href="https://www.youtube.com/channel/UCW62gTen2zniILj9xE6LmOg" target="_blank" rel="noopener noreferrer"><img src="https://www.w3web.net/wp-content/uploads/2021/11/youtubeIcon.png" width="25" height="25" style="vertical-align:top; margin-right:10px;"/> <strong>TechW3web:-</strong> To know more, Use this <span style="color: #ff8000; font-weight: bold;">Link</span> </a>
  69.                 </div>
  70.     </div>
  71.  
  72. </div>
  73.  
  74.   <!--End RelatedTopics Section-->
  75.     </div>
  76. </lightning-card>
  77.  
  78. </template>

⇒ Create Lightning Web Component Javascript

Step 2:- Create Lightning Web Component Javascript ➡ lwcRegexFormValidation.js

SFDX:Lightning Web Component ➡ New ➡ lwcRegexFormValidation.js

lwcRegexFormValidation.js [LWC JavaScript File]

  1.    import { LightningElement } from 'lwc';
  2. import { ShowToastEvent } from 'lightning/platformShowToastEvent';
  3. export default class LwcRegexFormValidation extends LightningElement {
  4.  
  5.     regContactForm = {};  
  6.  
  7.     regInpFormAction() {
  8.         var isValidVal = true;
  9.         var inputFields = this.template.querySelectorAll('.reqInpFld');
  10.         inputFields.forEach(inputField => {
  11.             if(!inputField.checkValidity()) {
  12.                 inputField.reportValidity();
  13.                 isValidVal = false;
  14.             }
  15.             this.regContactForm[inputField.name] = inputField.value;
  16.         });
  17.         return isValidVal;
  18.     }
  19.  
  20.  
  21.     submitRegAction() {
  22.         if(this.regInpFormAction()) {            
  23.             console.log(this.regContactForm);
  24.             var inputFields = this.template.querySelectorAll('.reqInpFld');
  25.             inputFields.forEach(inputField => {               
  26.                 inputField.value="";
  27.             });
  28.             const toastEvent = new ShowToastEvent({
  29.                 title:'Success!',
  30.                 message:'Record created successfully',
  31.                 variant:'success'
  32.               });
  33.               this.dispatchEvent(toastEvent); 
  34.         }
  35.     }
  36. }

⇒ Create Lightning Web Component Meta XML

Step 3:- Create Lightning Web Component Meta XML ➡ lwcRegexFormValidation.js-meta.xml

SFDX:Lightning Web Component ➡ New >> lwcRegexFormValidation.js-meta.xml

lwcRegexFormValidation.js-meta.xml [LWC Meta Data XML]

  1.    <?xml version="1.0" encoding="UTF-8"?>
  2. <LightningComponentBundle xmlns="http://soap.sforce.com/2006/04/metadata">
  3.     <apiVersion>45.0</apiVersion>
  4.     <isExposed>true</isExposed>
  5.     <targets>
  6.         <target>lightning__AppPage</target>
  7.         <target>lightning__RecordPage</target>
  8.         <target>lightning__HomePage</target>
  9.       </targets>
  10. </LightningComponentBundle>

apply regex patterns on custom form validation in Salesforce lwc -- w3web.net

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FAQ (Frequently Asked Questions)

What is form validation with example?

Form validation normally used to occur at the server, after the client had entered all the necessary data and then pressed the Submit button.

Why JavaScript is used for validation?

Validation is a method to authenticate the user. JavaScript provides the facility to validate the form on the client-side so data processing will be faster than server-side validation.

What is a validation document?

Validation is the documented process of demonstrating that a system or process meets a defined set of requirements.

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Hi, This is Vijay Kumar behind the admin and founder of w3web.net. I am a senior software developer and working in MNC company from more than 8 years. I am great fan of technology, configuration, customization & development. Apart of this, I love to write about Blogging in spare time, Working on Mobile & Web application development, Salesforce lightning, Salesforce LWC and Salesforce Integration development in full time. [Read full bio] | | The Sitemap where you can find all published post on w3web.net

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