using javascript to dynamically color rows in a table based on the value in the status field

Question

using javascript to dynamically color rows in a table based on the value in the status field

Hi, I'm new to javascript and seeking help for my table coloring issue. I have a dynamic table where data is inserted through an Ajax call. The goal is to color specific records based on their status.

I attempted a solution but only one record gets colored while multiple records should be highlighted. Each row's color should change according to the 'status' property received via Ajax call.

Below is the code snippet:

<div class="tb TBN" style="height:125px; border:none;">
    <table class="table table-condensed nchild customer" id="records_table">
        <tbody>

        </tbody>
    </table>
</div>

$.map(data.response.data, function(item) {
    var stat = item.status;
    if (stat == 'A') {
        trHTML += '<tr bgcolor="#0072B5" id="' + item.rCOxylane + '">' +
            '<td align="center" width="5%"> <input type="radio" id="radio" class="radioDetails" name="empdetails" checked="checked" value="' + item.rCOxylane + '"/> </td>' +
            '<td id="decId" style="word-wrap:break-word;">' + item.rCOxylane + '</td>' +
            '<td id="activeId" style="display:none;"> ' + item.status + ' </td>' +
            '<td id="fname">' + fname + '</td>' +
            '<td id="lname">' + item.name2 + '</td>' +
            '<td id="mob">' + item.rCMobile + '</td>' +
            '<td id="emailid" style="word-wrap:break-word;">' + item.rCEmail + '</td>' +
            '<td id="landLine">' + item.rCLandline + '</td>' +
            '<td id="zipCode">' + item.rCZipcode + '</td>' +
            "<td><a id='EditCustomer' class='EditDetails' href='#EditDetails' role='button' data-backdrop='static' data-toggle='modal'>Edit Details</a></td>" +
            '</tr>';
    } else {
        trHTML += '<tr id="' + item.rCOxylane + '">' +
            '<td align="center" width="5%"> <input type="radio" id="radio" class="radioDetails" name="empdetails" checked="checked" value="' + item.rCOxylane + '"/> </td>' +
            '<td id="decId" style="word-wrap:break-word;">' + item.rCOxylane + '</td>' +
            '<td id="activeId" style="display:none;"> ' + item.status + ' </td>' +
            '<td id="fname">' + fname + '</td>' +
            '<td id="lname">' + item.name2 + '</td>' +
            '<td id="mob">' + item.rCMobile + '</td>' +
            '<td id="emailid" style="word-wrap:break-word;">' + item.rCEmail + '</td>' +
            '<td id="landLine">' + item.rCLandline + '</td>' +
            '<td id="zipCode">' + item.rCZipcode + '</td>' +
            "<td><a id='EditCustomer' class='EditDetails' href='#EditDetails' role='button' data-backdrop='static' data-toggle='modal'>Edit Details</a></td>" +
            '</tr>';

    }
});

The problem I am facing is that only one record with status 'A' is being colored instead of all matching records. Any advice or assistance would be highly appreciated. Thank you in advance!

javascript jquery html css

Answer 1

Answer №1

Here are a few issues with the code provided:

The JavaScript code should be enclosed within <script></script> tags:

<script type="text/javascript">
    $.map( data.response.data, function( item ) {    
        var stat = item.status;    
        if(stat=='A'){
            //actions to take if true
        }
        else {
            //actions to take if false
        }
    });
</script>

Alternatively, you can import it from another file:

<script type="text/javascript" src="/path/to/your/script.js" />

There is redundancy in the code. If the main goal is to change the background color of a specific element, it is more efficient to operate on a fragment and concatenate later instead of rendering all the code twice for both conditions:

<script type="text/javascript>
    //Assuming jQuery is already loaded
    //Wrap it in $(document).ready() if you need JS execution after HTML load
    $(document).ready(function() {
        $.map( data.response.data, function( item ) {    
            var stat = item.status;
            var color_frag = '';
            if(stat=='A'){
                color_frag='bgcolor="#0072B5" ';
            }
            trHTML = '<tr '+color_frag+'id="'+item.rCOxylane+'">';
                //Cell content here. Avoid duplicating IDs!
            trHTML+= '</tr>';
            $('.fillthis').append(trHTML);
        });
    });
</script>

<div class="tb TBN" style="height:125px; border:none;">
  <table class="table table-condensed nchild customer" id="records_table">
    <tbody class="fillthis">

    </tbody>
  </table>
</div>

If you need to render multiple rows this way, consider using loops. Rendering duplicate IDs as done in the code will cause issues. As mentioned by @D4V1D, each element in the DOM must have a unique ID. Use classes for referencing multiple elements simultaneously or concatenate unique IDs for individual cells if necessary. Additionally, research the powerful DOM referencing methods available in jQuery.

Additionally, move all styling attributes to CSS files for efficiency, reducing redundancy, and easier code maintenance.

Answer 2

Here are a few issues with the code provided:

The JavaScript code should be enclosed within <script></script> tags:

<script type="text/javascript">
    $.map( data.response.data, function( item ) {    
        var stat = item.status;    
        if(stat=='A'){
            //actions to take if true
        }
        else {
            //actions to take if false
        }
    });
</script>

Alternatively, you can import it from another file:

<script type="text/javascript" src="/path/to/your/script.js" />

There is redundancy in the code. If the main goal is to change the background color of a specific element, it is more efficient to operate on a fragment and concatenate later instead of rendering all the code twice for both conditions:

<script type="text/javascript>
    //Assuming jQuery is already loaded
    //Wrap it in $(document).ready() if you need JS execution after HTML load
    $(document).ready(function() {
        $.map( data.response.data, function( item ) {    
            var stat = item.status;
            var color_frag = '';
            if(stat=='A'){
                color_frag='bgcolor="#0072B5" ';
            }
            trHTML = '<tr '+color_frag+'id="'+item.rCOxylane+'">';
                //Cell content here. Avoid duplicating IDs!
            trHTML+= '</tr>';
            $('.fillthis').append(trHTML);
        });
    });
</script>

<div class="tb TBN" style="height:125px; border:none;">
  <table class="table table-condensed nchild customer" id="records_table">
    <tbody class="fillthis">

    </tbody>
  </table>
</div>

If you need to render multiple rows this way, consider using loops. Rendering duplicate IDs as done in the code will cause issues. As mentioned by @D4V1D, each element in the DOM must have a unique ID. Use classes for referencing multiple elements simultaneously or concatenate unique IDs for individual cells if necessary. Additionally, research the powerful DOM referencing methods available in jQuery.

Additionally, move all styling attributes to CSS files for efficiency, reducing redundancy, and easier code maintenance.

using javascript to dynamically color rows in a table based on the value in the status field

Answer №1

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