Asp.net 以编程方式将css类添加到ListItem

我需要使用asp.net控件生成此结构，但ListItem不允许添加属性和类

最好的方法是什么

<ul>
 <li class="1">SomeText</li>
 <li class="2">SomeText2</li>
</ul>

SomeText
SomeText2

您仍然可以添加自定义属性：

// assuming li is your WebControl or HtmlControl:
li.Attributes.Add("class", "1");

---

您可以传递类属性：

<asp:BulletedList ID="BulletedList1" runat="server">
  <asp:ListItem class="1">SomeText</asp:ListItem>
  <asp:ListItem class="2">SomeText2</asp:ListItem>
</asp:BulletedList>

---

这对我来说很好，但是使用dropdownlist和VB

    Dim ListItem As ListItem = New ListItem("All folders", 0)
    ListItem.Attributes.Add("style", "color:red;")
    DropDownListFolders.Items.Add(ListItem)

listview中的Dropdown--如果要在Dropdown textsize固定时提供选择项目的弹出窗口：

protected void lstViewVehicle_ItemCreated(object sender, ListViewItemEventArgs e)
{        
    try
    {
    if (e.Item.ItemType == ListViewItemType.InsertItem)
    {
        DropDownList ddl = (DropDownList)e.Item.FindControl("ddlDescription");
        if (ddl != null)
        {
            string description = exp_Type_Vehicle;
            clsBER objclsBER = new clsBER();
            DataSet ds = objclsBER.FillDropdown(description);

            foreach (DataRow dr in ds.Tables[0].Rows)
            {
                ListItem lstitem = new ListItem(dr["expense_description"].ToString(), dr["eid"].ToString());
                lstitem.Attributes.Add("title", dr["expense_description"].ToString());
                //lstitem.Attributes.Add("style", "color:blue");
                ddl.Items.Add(lstitem);
            }
            ddl.DataBind();
        }
    }
    }
    catch (Exception ex)
    {
        (new csComman()).dealWithEx(ex, Session);
        Response.Redirect("ErrorPage/ErrorPage.aspx", false);
    }   
}

---

如何使用此代码为每个列表项指定不同的类？

protected void lstViewVehicle_ItemCreated(object sender, ListViewItemEventArgs e)
{        
    try
    {
    if (e.Item.ItemType == ListViewItemType.InsertItem)
    {
        DropDownList ddl = (DropDownList)e.Item.FindControl("ddlDescription");
        if (ddl != null)
        {
            string description = exp_Type_Vehicle;
            clsBER objclsBER = new clsBER();
            DataSet ds = objclsBER.FillDropdown(description);

            foreach (DataRow dr in ds.Tables[0].Rows)
            {
                ListItem lstitem = new ListItem(dr["expense_description"].ToString(), dr["eid"].ToString());
                lstitem.Attributes.Add("title", dr["expense_description"].ToString());
                //lstitem.Attributes.Add("style", "color:blue");
                ddl.Items.Add(lstitem);
            }
            ddl.DataBind();
        }
    }
    }
    catch (Exception ex)
    {
        (new csComman()).dealWithEx(ex, Session);
        Response.Redirect("ErrorPage/ErrorPage.aspx", false);
    }   
}