The maskedbox enforces its structure as the user types.
<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>Basic MaskedBox - jQuery EasyUI Demo</title> <link rel="stylesheet" type="text/css" href="../../themes/default/easyui.css"> <link rel="stylesheet" type="text/css" href="../../themes/icon.css"> <link rel="stylesheet" type="text/css" href="../demo.css"> <script type="text/javascript" src="../../jquery.min.js"></script> <script type="text/javascript" src="../../jquery.easyui.min.js"></script> </head> <body> <h2>Basic MaskedBox</h2> <p>The maskedbox enforces its structure as the user types.</p> <div style="margin:20px 0;"></div> <div class="easyui-panel" title="Basic MaskedBox" style="width:100%;max-width:400px;padding:30px 60px;"> <div style="margin-bottom:20px"> <input class="easyui-maskedbox" mask="(999) 999-9999" label="Phone Number:" labelPosition="top" style="width:100%"> </div> <div style="margin-bottom:20px"> <input class="easyui-maskedbox" mask="9999 9999 9999 9999" label="Credit Card:" labelPosition="top" style="width:100%"> </div> <div style="margin-bottom:20px"> <input class="easyui-maskedbox" mask="99%" label="Percent:" labelPosition="top" style="width:100%"> </div> </div> </body> </html>