<html>
<head>
<script type="text/javascript" src="jquery.min.js"></script>
<script type="text/javascript" src="jquery.cleditor.min.js"></script>
<script type="text/javascript">
$(document).ready(function () { $("#input").cleditor(); });
</script>
</head>
<body>
<textarea id="input" name="input" runat="server"></textarea>
</body>
</html>
access textarea id in code behind as
input.Value
& save in database & same process do when fetching data from database.