給單個dropdownlist 添加title
<script type="text/javascript">
function showdropitem(){
var el = document.getElementById("ddlTblx");
showitem(el);
}
function showitem(obj)//将就需要加title屬性的select傳進來
{
for(j=0;j<obj.options.length;j++)
{
obj.options[j].title = obj.options[j].text;
}
}
</script>
給頁面所有下拉全部添加title
<script language="javascript" type="text/javascript">
function showdropitem()//給頁面全部select加title屬性
{
var el = document.getElementsByTagName("select");
for(i=0;i<el.length;i++)
{
showitem(el[i]);
}
}
function showitem(obj)//将就需要加title屬性的select傳進來
{
for(j=0;j<obj.options.length;j++)
{
obj.options[j].title = obj.options[j].text;
}
}
</script>
然後在網頁尾部調用函數
<script language="javascript" type="text/javascript">
showdropitem();
</script>
以上是js實作方式
下面背景實作
/** <summary>
/// 為DropDownList的Item加title屬性
/// </summary>
/// <param name="ddl">DropDownList</param>
private void addTitle(DropDownList ddl)
{
foreach (ListItem item in ddl.Items)
{
item.Attributes.Add("title", item.Text);
}
}