Lowercase and upercase in dropdown box

[Muhahe]

Hi, i found problem. When i have informations in table in lower and uper case, uper case sorts first, and lower after it. Can it be somehow repaired?

for example
Box, Car, Zero, ant, glove is in dropdown box, but it have to be ant, Box, Car, glove, Zero

[tpcrr]

Having the same issue and came here to look for a fix.

[tpcrr]

In case someone else comes across the same issue.

The fnDraw() method appears to have code that lets you specify your own sort function via an 'fnSort' property. I wasn't sure where to specify that so I added it to the code.

So, at around line 164 I added my own fnSort function. This took care of the sorting issue.

    widget.sSeparator = '';  // Line 163
    widget.bSort = true;

    // Start add
    widget.fnSort = function (a, b) {
        a = a.toLowerCase();
        b = b.toLowerCase();
        if (a == b) return 0;

        var cnt = 0, tem;
        var x = /^(\.)?\d/;
        var len = Math.min(a.length, b.length) + 1;
        while (cnt < len && a.charAt(cnt) === b.charAt(cnt) &&
        x.test(b.substring(cnt)) == false && x.test(a.substring(cnt)) == false) cnt++;
        a = a.substring(cnt);
        b = b.substring(cnt);

        if (x.test(a) || x.test(b)) {
            if (x.test(a) == false) return (a) ? 1 : -1;
            else if (x.test(b) == false) return (b) ? -1 : 1;
            else {
                tem = parseFloat(a) - parseFloat(b);
                if (tem != 0) return tem;
                else tem = a.search(/[^\.\d]/);
                if (tem == -1) tem = b.search(/[^\.\d]/);
                a = a.substring(tem);
                b = b.substring(tem);
            }
        }
        if (a == b) return 0;
        else return (a > b) ? 1 : -1;
    };
    // End add

    widget.iMaxSelections = -1;
    if ('oColumnFilterWidgets' in oDataTableSettings.oInit) {

[Muhahe]

Nice solve of problem, but i met another one, when i have column with czech date format (dd.mm.yyyy) its sortet bad too. I trying to modify you code, but you know ...

[LazyDev2k]

tpcrr, there is much simpler way to do same sorting:

fnSort: function(a, b) {
    return a.toLowerCase().localeCompare(b.toLowerCase());
}

[LazyDev2k]

To enable sorting you can fix the code in ColumnFilterWidged.js. Change

if ( widget.hasOwnProperty( 'fnSort' ) ) {
    aDistinctOptions.sort( widget.fnSort );
} else {
    aDistinctOptions.sort();
}

to

if ( widget.oColumn.hasOwnProperty( 'fnSort' ) ) {
    aDistinctOptions.sort( widget.oColumn.fnSort );
} else {
    aDistinctOptions.sort();
}