Working With jQuery Radio And Checkbox Button

In this blog, I am going to share all properties of checkbox and radio button. We will change the attribute of both controls using jQuery.

Step 1

Create one web application.

Step 2

Add one web page to write the code.

Figure:1 (Added web page)

Step 3

Write the below code to create checkbox, radio button, and a button control.

<label id="firstCheckbox"> <input type="checkbox" id="chkIsPassed" />Books</label>
<label id="firstRadioButton"><input type="radio" name="gender" id="rdoMale" />Male </label>
<label id="secondRadioButton"><input type="radio" name="gender" id="rdoFemale" />Female </label>
<input type="button" id="btnClick" value="Click Me" />

Figure:2 (Layout of webpage)

Step 4

By default, all radion and checkbox are unchecked. To make them checked, set the property checked to "checked".

<label id="firstCheckbox"> <input type="checkbox" checked="checked" id="chkIsPassed" />Books</label>

Step 5

Add the following jQuery script inside the head section.

<script src="https://ajax.aspnetcdn.com/ajax/jQuery/jquery-3.2.1.min.js"></script>

Now, it is time to write the jQuery code to check and set the properties of controls. I am writing all jQuery code on the button click event.

How to check if a checkbox is checked or not on button click event -

<script type="text/javascript">
$(document).ready(function() {
$("#btnClick").click(function() {
var isChecked = $("#chkIsPassed").prop("checked") //returns bool value ,true if checkbox is checked otherwise false
alert(isChecked);
});
});
</script>

How to check if the radion button is checked or not -

<script type="text/javascript">
$(document).ready(function() {
$("#btnClick").click(function() {
var isChecked = $("#rdoMale").prop("checked") //returns bool value ,true if Male radion button is checkes otherwise false
alert(isChecked);
});
});
</script>

How to change the checkbox property from checked to unchecked on button click -

<script type="text/javascript">
$(document).ready(function() {
$("#btnClick").click(function() {
$("#chkIsPassed").prop("checked", false) //set checkbox property checked to false on button click
});
});
</script>

How to change the radion button property from checked to unchecked on button click -

<script type="text/javascript">
$(document).ready(function() {
$("#btnClick").click(function() {
$("#rdoMale").prop("checked", false) //set checkbox property checked to false on button click
});
});
</script>

How to find the checked value of a radion button -

I have added one function on radion button-click event.

<label id="firstRadioButton"><input type="radio" name="gender" onclick="CallMe()" id="rdoMale" value="Male" />Male </label>
<label id="secondRadioButton"><input type="radio" name="gender" onclick="CallMe()" id="rdoFemale" value="Female" />Female </label>

And, defined the function named as CallMe inside the script section.

Remark

You can download the working application from this link.