下拉框验证问题

飞天猪

<input id="txtBeginOrfinishfee" name="BeginOrfinishfee" textfield="value" allowinput="true" vtype="maxLength:10;float" valuefield="value" style="width: 220px;" class="mini-combobox" required="true" value="0" />
中的vtype="maxLength:10;float" 验证不成功

felt

combobox不支持