Creating a textarea character couter using jQuery is pretty easy.
To implement this we need to write the code like as shown below.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="TestOCRReader.WebForm1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
var characterLimit = 140;
$(document).ready(function () {
$("#lblremaingCharacters").html(characterLimit);
$("#meTextarea").bind("keyup", function () {
var characterInserted = $(this).val().length;
if (characterInserted > characterLimit) {
$(this).val($(this).val().substr(0, characterLimit));
}
var characterRemaining = characterLimit - characterInserted;
$("#lblremaingCharacters").html(characterRemaining);
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<label id="lblremaingCharacters" style="color:Red;font-weight:bold"></label><label> characters remaining.</label><br />
<textarea id="meTextarea"></textarea>
</div>
</form>
</body>
</html>
Result as shown below :
To implement this we need to write the code like as shown below.
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="WebForm1.aspx.cs" Inherits="TestOCRReader.WebForm1" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js" type="text/javascript"></script>
<script type="text/javascript">
var characterLimit = 140;
$(document).ready(function () {
$("#lblremaingCharacters").html(characterLimit);
$("#meTextarea").bind("keyup", function () {
var characterInserted = $(this).val().length;
if (characterInserted > characterLimit) {
$(this).val($(this).val().substr(0, characterLimit));
}
var characterRemaining = characterLimit - characterInserted;
$("#lblremaingCharacters").html(characterRemaining);
});
});
</script>
</head>
<body>
<form id="form1" runat="server">
<div>
<label id="lblremaingCharacters" style="color:Red;font-weight:bold"></label><label> characters remaining.</label><br />
<textarea id="meTextarea"></textarea>
</div>
</form>
</body>
</html>
Result as shown below :
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