Question

I have a drop down that I need to compare the values (the balance) inside of the drop down and compare this to a global variable, then performing an if / else statement to display some HTML.

Here is the drop down:

 <select name="batch">
 <option value='null'>-- None --</option>
 <option value='96'>Check (#2200) (Bal. $84.00) - Jim Jones</option>
 <option value='98'>Credit Card (#0) (Bal. $90.00) - Bailey Adams</option>
 </select>

Here is my jquery:

    $("select[name=batch]").change(function () {
    if ($(this).val() >= GlobalTotal) {
        $("th#show_refund").show();
        $("th#no_show_refund").hide();
    } else {
        $("th#show_refund").hide();
        $("th#no_show_refund").show();
    }
});

Is it possible for jquery to ascertain what the balance is inside the HTML select? If so I appreciate a pointer to get me going in the right direction.

Answer 1

I assume you are constructing this dynamically. On each option, add an attribute data-balance=84 or whatever the balance is, then using jQuery, you would use

$("select[name=batch] option:selected").attr("data-balance")

So, your complete code would be:

<select name="batch">
    <option value='null'>-- None --</option>
    <option value='96' data-balance="84.00">Check (#2200) (Bal. $84.00) - Jim Jones</option>
    <option value='98' data-balance="90.00">Credit Card (#0) (Bal. $90.00) - Bailey Adams</option>
</select>

$("select[name=batch]").change(function () {
    if ($("select[name=batch] option:selected").attr("data-balance") >= GlobalTotal) {
        $("th#show_refund").show();
        $("th#no_show_refund").hide();
    } else {
        $("th#show_refund").hide();
        $("th#no_show_refund").show();
    }
});