復制代碼 代碼如下:

<asp:DropDownList runat="Server"
AutoPostBack="True" onselectedindexchanged="ddlNameList_SelectedIndexChanged" ></asp:DropDownList>

復制代碼 代碼如下:

protected void Page_Load(object sender, EventArgs e)
{

if (!Page.IsCallBack)
{
this.fillIntoNameList();
}
}

復制代碼 代碼如下:

protected void Page_Load(object sender, EventArgs e)
{

if (!Page.IsPostBack)
{
this.fillIntoNameList();
}
}