Modifying CSS dynamically is not possible by using either .addClass() or .css() methods

I'm working with a table that has rows categorized by different classes based on their color. When a button is clicked, I want the row's background color to change instantly. I've attempted using both the .addClass() and .css() methods without success. However, my function to determine if the row is colored or not is functioning properly when triggered by a click event.

Below are the code snippets I am utilizing, along with the corresponding CSS classes for the rows:

If the row is currently white:

$("#"+table+"_row_"+id).addClass("table-1").removeClass("table-0");

or

$("#"+table+"_row_"+id).css("background-color","orange");

If the row is currently orange:

$("#"+table+"_row_"+id).addClass("table-0").removeClass("table-1");

or

$("#"+table+"_row_"+id).css("background-color","white");

CSS:

table.tablesorter .table-1{
background-color:orange;
}
table.tablesorter .table-0{
background-color:white;
}

Answer №1

If you're having trouble with selecting the correct element using "#"+table+"_row_"+id, it's possible that the selector is not targeting the desired element. Double check to see if this selector is returning any elements and make sure they are the right ones.

I personally prefer using classes for styling, as it separates the style from the HTML code. You can utilize hasClass method for this purpose.

To improve performance, it's a good idea to store the reference:

var x = $('#'+table+'_row_'+id);
if (x.hasClass('table-0'))
{
  x.addClass('table-1').removeClass('table-0');
}
else
{
  x.addClass('table-0').removeClass('table-1');
}

This approach also simplifies debugging and updates, since once x is correctly selected, it will always be correct. Plus, it makes inspecting the element easier too.

Answer №2

Did you review the CSS cascading order, using tools like Firebug or WebKit's Web inspector?

It is important to consider the cascading order when making updates to a CSS class. Neglecting this could result in unexpected effects that differ from what you intended.

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