How can I set limit of lines in TextBox in .Net using jQuery

Question

I want to set the maximum number of lines in Textbox also I tried multiple places for this answer but I failed.

I tried this and this and then I have found an issue that keyboard of mobile is not working on Keypress event while It's working on keyboard of the desktop.

Please help me to find the answer.

Thank You for concentration.

Answer 1

Lines used: 0

$(document).ready(function(){

var lines = 10;
var linesUsed = $('#linesUsed');

$('#countMe').keydown(function(e) {

    newLines = $(this).val().split("\n").length;
    linesUsed.text(newLines);

    if(e.keyCode == 13 && newLines >= lines) {
        linesUsed.css('color', 'red');
        return false;
    }
    else {
        linesUsed.css('color', '');
    }
});

});