How can I determine if the checkbox is selected while iterating through my table?

Here is the code I use to construct my table:

for (var i = 0; i < result.length; i++) {
    var item = result[i];

    // Firma, BygningselementNavn, BrugerNavn, EmailAdresse, Telefon
    tbody = tbody + '<tr class="modtagerRow"><td>' + item.FirmaNavn + '</td>' +
                                '<td>' + item.BygningselementNavn + '</td>' +
                                '<td>' + item.BrugerNavn + '</td>' +
                                '<td>' + item.EmailAdresse + '</td>' +
                                '<td>' + item.Telefon + '</td>'
    // Medtag
    tbody = tbody + '<td style="text-align:center"><input type="checkbox" 
            value="' + item.BygningselementId + '_' + item.BrugerId + '" 
            name="BygningsElementBrugerComboIds"></td>' + '</tr>';
}
$('#ModtagereTable tbody').append(tbody)

In attempting to loop through the rows and apply a CSS class to checked checkboxes, I encountered some challenges.

1) While I successfully output the indices to the console, I struggled with creating the if condition for all the checked checkboxes.

2) Additionally, I am uncertain whether I should utilize $( this ) or another method when adding the class .hideForSendMailConfirm.

// Looping rows in table
$( ".modtagerRow" ).each(function(index, element) {
    console.log('index: ' + index);
    // if
    if (element.checked) {
        $( this ).addClass(".hideForSendMailConfirm");
    }
});

Answer №1

Give this a try

$('.recipientRow input:checked').closest('tr').addClass('hideForEmailConfirmation');

To apply a class to unchecked rows, you can use the .not() method.

$('.recipientRow input[type="checkbox"]').not(':checked').closest('tr').addClass('hideForEmailConfirmation');

Answer №2

Your current code snippet:

$(".modtagerRow").each(function (index, element) {
    if (element.checked) {
        $(this).addClass(".hideForSendMailConfirm");
    }
});

is designed to loop through table rows with the class modtagerRow. However, a table row does not have a checked property, which results in your code not functioning as intended.

A more effective approach would be:

$(".modtagerRow :checkbox").each(function (index, element) {
    if (element.checked) {
        $(this).closest(".modtagerRow").addClass("hideForSendMailConfirm");
    }
});

This revised code targets checkboxes within table rows and applies the appropriate class based on their checked status.

Another issue in your original code was this line:

.addClass(".hideForSendMailConfirm");

To add a class, you simply provide the class name without the prefixing dot (.).

In fact, there is no need for explicit iteration at all. You can achieve the desired result with a simpler solution:

 $(".modtagerRow :checkbox:checked").closest('tr').addClass('hideForSendMailConfirm');

Utilizing jQuery's inherent functionality eliminates the necessity of manually looping over elements in this scenario.

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