<%@ Page Language="C#" MasterPageFile="~/MasterPage.master" Title="Untitled Page" %>

<script runat="server">


    protected void Page_Load(object sender, EventArgs e)
    {
        if (!IsPostBack)
        {
            cbl1_DataBind();  
        }
    }

    protected void cbl1_DataBind()
    {
        ArrayList arrList = new ArrayList();
        
        arrList.Add("ciao");

        DetailsView1.ChangeMode(DetailsViewMode.Insert);
        
        DetailsView1.DataBind();
        
        CheckBoxList cbl1 = (CheckBoxList)DetailsView1.FindControl("cbl1");
        
        cbl1.DataSource = arrList;
       
        cbl1.DataBind();
  
    } 

</script>

<asp:Content ID="Content1" ContentPlaceHolderID="ContentPlaceHolder1" runat="Server">
    <asp:DetailsView ID="DetailsView1" runat="server" >
        <Fields>
            <asp:TemplateField>
                <InsertItemTemplate>
                    <asp:CheckBoxList ID="cbl1" runat="server" AutoPostBack="true" />
                </InsertItemTemplate>
            </asp:TemplateField>
        </Fields>
    </asp:DetailsView>
</asp:Content>