你做的web页面,提示是要你将控件放在一个具有runat="server"的form中,你没有form
<FORM id="form1" method="post" runat="server">
<asp:dropdownlist id="MyDropDownList" runat="server" />
</form>你试试
<FORM id="form1" method="post" runat="server">
<asp:dropdownlist id="MyDropDownList" runat="server" />
</form>你试试
<script runat="server" Language="c#">
void Page_Load()
{
ArrayList AnimalArrayList = new ArrayList();
AnimalArrayList.Add("Dog");
AnimalArrayList.Add("Cat");
AnimalArrayList.Add("Elephant");
AnimalArrayList.Add("Lion");
AnimalArrayList.Add("Cat");
MyDropDownList.DataSource = AnimalArrayList;
MyDropDownList.DataBind();
}
</script>
<html>
<body>
<form runat="server">
<asp:DropDownList id="MyDropDownList" runat="server" />
</form>
</body>
</html>