If you want to do it based on Aura:id try like this <lightning:input aura:id="inpCk" type="radio" name="select" value="red label="red" onchange=" {!c.handleRadioClick}" /> var isChecked = cmp.find ('inpCk').get ('v.checked'); console.log (isChecked); var checkVal= cmp.find ('inpCk').get ('v.value');
Full Answer
How to set custom validation error in Salesforce Lightning?
You can set the custom validation error in the lightning:input component. In below example, If you write John Doe in input field and press register, you will get an error message. Thanks for contributing an answer to Salesforce Stack Exchange!
How to implement radio button group in Salesforce Lightning design system (SLDs)?
lightning-radio-group implements the radio button blueprint in the Salesforce Lightning Design System (SLDS). Set type="button" to create a component that implements the radio button group blueprint in SLDS. Use the variant attribute with one of these values to change the appearance of the radio group.
Is there a radio button in lightning action component?
There is a tag named ui:inputRadio which can be used for radio buttons. Also please note that whenever you call a method from component, use {!c.functionName}. Not the answer you're looking for? Browse other questions tagged lightning-aura-components lightning action radio-button or ask your own question.
What is an invalid input field in Lightning?
A lightning:input field that specifies a certain criteria or attribute, max , min, pattern, and so on, is invalid if the criteria isn’t met. You can provide a custom error message using attributes like messageWhenValueMissing, when it’s available on the component.
Can a radio button be checked?
You can check a radio button by default by adding the checked HTML attribute to the element. You can disable a radio button by adding the disabled HTML attribute to both the
How do you use the radio button in the lightning component?
This component inherits styling from Radio Button in the Lightning Design System. Set type="button" to create a component that inherits styling from Radio Button Group in the Lightning Design System. This example creates a radio group with two options and option1 is selected by default.
How can I tell if my radio button is clicked?
Input Radio checked PropertyCheck and un-check a specific radio button: function check() { ... Find out if a radio button is checked or not: getElementById("myRadio"). ... Use a radio button to convert text in an input field to uppercase: getElementById("fname"). ... Several radio buttons in a form: var coffee = document.
How do I know which radio button is selected?
To check which radio button is selected in a form, we first get the desired input group with the type of input as an option and then the value of this selection can then be accessed by the val() method. This returns the name of the option that is currently selected.
How do you get the input field value in a controller in Salesforce lightning?
To get the value of the input field directly you could try adding the aura:id="someId" attribute to the
How do you use radio groups?
A RadioGroup class is used for set of radio buttons. If we check one radio button that belongs to a radio group, it automatically unchecks any previously checked radio button within the same group.
How do I get the value of a radio button?
Input Radio value PropertyGet the value of the value attribute of a radio button: getElementById("myRadio"). ... Change the value of the value attribute of a radio button: getElementById("myRadio"). ... Using radio buttons together with a text input field to display the value of the selected radio button:
How do you check if a radio button is checked in react?
To check/uncheck a radio button in React, we use the checked property of the input elements, which is set to true when the radio button is checked otherwise it is set to false .
How can I check if a RadioButton is selected in CSS?
CSS selector for a checked radio button label using JavaScript/...Radio Button. For a radio button, you can use the input[type="radio"]:checked + label selector, which matches a label that immediately follows a checked input of type radio. ... Check Box. ... Drop Down.
Why radio button is not getting selected?
You cannot unselect radio buttons. That's because they're used if you want the user to select either option1 or option2 or option3 but prohibit selecting multiple values or leaving it empty (e.g. in case of selecting a Gender).
How do you check and uncheck a radio button in HTML?
To set a radio button to checked/unchecked, select the element and set its checked property to true or false , e.g. myRadio. checked = true . When set to true , the radio button becomes checked and all other radio buttons with the same name attribute become unchecked. Here is the HTML for the examples in this article.
How do you check the radio button is checked or not in selenium?
How to verify that if the Radio Button is selected using Selenium isSelected() method? Once we ran this code, the code will first check if the radio button is selected or not. Then an if condition will validate if the returned value is true or false. In case if it is false, i.e., the radio button is not selected.
What is lightning radio group?
A lightning:radioGroup component represents a group of radio buttons that permit only one button to be selected at a time. The component renders radio button <input> elements and assigns the same value to the name attribute for each element. The common name attribute joins the elements in a group.
What happens if the required attribute is true?
If the required attribute is true, at least one radio button in the group must be selected. When a user interacts with the radio button group and doesn't make a selection, an error message is displayed. If the disabled attribute is true, radio button selections can't be changed.
Can you select only one value across all radio button groups?
The result is that you can select only one value across all radio button groups, instead of one value within a radio button group. If you require your own name value, enclose the reused components in <form> elements to enable the page to use the same name value for multiple radio button groups.
Prevent Invalid Fields from Getting Submitted
In Creating a Form we implemented a basic form with built-in validation for required fields and specific types. Let’s customize the submission behavior such that the form displays errors on invalid fields. Customized behavior is useful if a user tries to submit an empty form and to identify errors in a field.
Example
The Aura Components Basics Trailhead module walks you through building a form for creating an expense record.
Field Validation Considerations
Client-side field validation provides an initial check for user data before submitting it to the server. Implement your own server-side validation to ensure that user data is saved in the expected format. Consider the following guidelines.
Input Validation
- Client-side input validation is available for this component. For example, an error message is displayed when the radio group is marked required and no option is selected. Note that a disabled radio group is always valid. You can override the default message using message-when-value-m…
Reusing Lightning-Radio-Group in A Page
- To reuse lightning-radio-groupin a page or across multiple tabs such as in a Salesforce console app, follow one of these suggestions. 1. Omit the nameattribute to enable the component to automatically generate a unique name. 2. Enclose each lightning-radio-group component in a <form> element and provide your own value for name. If the reused component generates a uniq…
Accessibility
- The radio group is nested in a fieldset element that contains a legend element. The legend contains the label value. The fieldset element enables grouping of related radio buttons to facilitate tabbing navigation and speech navigation for accessibility purposes. Similarly, the legend element improves accessibility by enabling a caption to be assigned to the fieldset.
Source Code
- lightning-radio-group is available in the Base Components Recipes GitHub repository. It's transpiled into the cnamespace so that you can use it in your own projects.