Force ComboBox to valid
<html> <head> <link rel="StyleSheet" type="text/css" href="js/dojo/dijit/themes/tundra/tundra.css"> <script type="text/javascript"> var djConfig = { baseScriptUri : "js/dojo/", parseOnLoad : true }; </script> <script type="text/javascript" src="js/dojo/dojo/dojo.js"></script> <script> dojo.require("dojo.parser"); dojo.require("dijit.form.ValidationTextBox"); dojo.require("dijit.form.ComboBox"); dojo.require("dojo.data.ItemFileReadStore"); </script> </head> <body class="tundra"> <label for="city">City: </label> <input type="text" id="city" name="city" title="city" dojoType="dijit.form.ComboBox" autoComplete="true" forceValidOption="false" /> </body> </html>