FilteringSelect with placeholder
HTML
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.8/dojo/resources/dojo.css">
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/dojo/1.8/dijit/themes/tundra/tundra.css">
<body class="tundra">
<select id="select" name="test_select"
data-dojo-type="dijit/form/FilteringSelect"
data-dojo-props="
value: '',
placeHolder: 'Choose one',
required: true",
width:200px>
<option value="1">One</option>
<option value="2">Two</option>
<option value="3">Three</option>
</select>
</body>