可编辑的 select (当然也可以是 DropDownList)

  在 csdn 找的,感觉还不错.....
转自

http://community.csdn.net/Expert/topic/3915/3915919.xml?temp=.9949152

<input type="text" name="re_name" style="FONT-SIZE:10pt;WIDTH:100px;HEIGHT:20px"><span style="WIDTH:18px"><SELECT style="MARGIN-LEFT: -100px; WIDTH: 118px; BACKGROUND-COLOR: #ffeeee" onchange="document.all.re_name.value=this.value;"
                    name="r00">
                    <option value="aaa" selected>aaa</option>
                    <option value="bbb">bbb</option>
                    <option value="ccc">ccc</option>
                    <option value="ddd">ddd</option>
                    <option value="eee">eee</option>
                </SELECT>
            </span>