如何在.NET中生成动态嵌套CheckBoxLists

protected void Page_Load(object sender, EventArgs e)
{
    if (!IsPostBack)
    {
        // 调用方法生成动态嵌套CheckBoxLists
        GenerateNestedCheckBoxLists();
    }
}

private void GenerateNestedCheckBoxLists()
{
    // 创建父级CheckBoxList
    CheckBoxList parentCheckBoxList = new CheckBoxList();
    parentCheckBoxList.ID = "parentCheckBoxList";
    parentCheckBoxList.RepeatLayout = RepeatLayout.Table;

    // 创建子级CheckBoxList
    CheckBoxList childCheckBoxList = new CheckBoxList();
    childCheckBoxList.ID = "childCheckBoxList";
    childCheckBoxList.RepeatLayout = RepeatLayout.Table;

    // 添加子级CheckBoxList到父级CheckBoxList中
    parentCheckBoxList.Controls.Add(childCheckBoxList);

    // 创建并添加CheckBoxListItems到子级CheckBoxList中
    for (int i = 1; i <= 5; i++)
    {
        ListItem item = new ListItem("Child Item " + i, i.ToString());
        childCheckBoxList.Items.Add(item);
    }

    // 添加父级CheckBoxList到页面或视图中
    form1.Controls.Add(parentCheckBoxList);
}

<asp:Content ID="BodyContent" ContentPlaceHolderID="MainContent" runat="server">
    <form id="form1" runat="server">
        <div>
            <asp:PlaceHolder ID="phCheckBoxLists" runat="server"></asp:PlaceHolder>
        </div>
    </form>
</asp:Content>