Learning jQuery

Find jQuery code to limit characters inside textarea control. Below code also handles copy + paste and on drop event.

$(function () {
    var nMaxLength = 150;
    $("#txtDesc").keydown(function (event) {
        LimitCharacters($(this));
    });
    $("#txtDesc").keyup(function (event) {
        LimitCharacters($(this));
    });

    function LimitCharacters(txtDesc) {
        if (txtDesc.val().length > nMaxLength) {
            txtDesc.val(txtDesc.val().substring(0, nMaxLength));
        } else {
            var nRemaining = nMaxLength - txtDesc.val().length;
            $('.remaining').text(nRemaining);
        }
    }
});

To stop drag and drop in textarea, simply set onDrop="return false;".

<textarea name="txtDesc" rows="4" cols="50" id="txtDesc" onDrop="return false;" style="width:70%;"></textarea>

You may also like:

• 10 jQuery plugins for textarea element
• How to scroll to the bottom of a textarea using jQuery

Feel free to contact me for any help related to jQuery, I will gladly help you.