asp.net mvc - MVC Form Data Validation and jquery validation

Question

(This question already has answers here): question from:https://stackoverflow.com/questions/66066322/mvc-form-data-validation-and-jquery-validation

Answer 1

Try using your checkbox as follows:

<fieldset id="checkArray">
<input type="checkbox" name="chk[]" value="Apples" />

<input type="checkbox" name="chk[]" value="Bananas" />
</fieldset>

And then validate via Jquery like this:

var atLeastOneIsChecked = $('#checkArray:checkbox:checked').length > 0;
//there should be no space between identifier and selector

// or, without the container:

var atLeastOneIsChecked = $('input[name="chk[]"]:checked').length > 0;

Then you can use atLeastOneIsChecked to verify if there are any checked boxes or not ( true or false ) and do wathever you want.