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Monday, 24 October 2016

jQuery: Validate, Test or Check if Checkbox or Checkboxes is Checked and Get Checkbox Value

10/24/2016 - By Pranav Singh 0

This article will show you how you can validate given checkbox or checkboxes are checked or not and get the checked checkbox value using jquery.

So for this article first we will take some checkboxes and assign some values to it.

<input id="chk1" type="checkbox" name="count" value="1">
<input id="chk2" type="checkbox" name="count" value="2">
<input id="chk3" type="checkbox" name="count" value="3">
<input id="chk4" type="checkbox" name="count" value="4">
<input id="chk5" type="checkbox" name="count" value="5">
<input id="chk6" type="checkbox" name="count" value="6">

After this we will add the jQuery library reference.

<script src="https://code.jquery.com/jquery-1.12.4.js"></script>

Now check the code which we will use for validating and getting the value of selected checkboxes.

  $(document).ready(function () {
            $("#btnValidate").click(function () {
                $('input[name="count"]:checked').each(function () {
                    alert(this.value);
                });
            });
        });

In above code I have validated each and every checkbox provided, And if it is checked on that case it’s value have been displayed in the message. If you click on button without selected nothing will happen.

Here is the complete code.

<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title>jQuery: Validate, Test  or Check if Checkbox or Checkboxes is Checked and Get Checkbox Value</title>
    <script src="https://code.jquery.com/jquery-1.12.4.js"></script>
    <script>
        $(document).ready(function () {
            $("#btnValidate").click(function () {
                $('input[name="count"]:checked').each(function () {
                    alert(this.value);
                });
            });
        });
    </script>

</head>
<body>
    <input id="chk1" type="checkbox" name="count" value="1">One <br />
    <input id="chk2" type="checkbox" name="count" value="2">Two<br />
    <input id="chk3" type="checkbox" name="count" value="3">Three<br />
    <input id="chk4" type="checkbox" name="count" value="4">Four<br />
    <input id="chk5" type="checkbox" name="count" value="5">Five<br />
    <input id="chk6" type="checkbox" name="count" value="6">Six<br />

    <input type="button" value="Validate Checkbox" id="btnValidate" />
</body>
</html>


Now we have done run the application and check the output.





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