dotNetHell.it - Forum - Codice Sorgente

<%@ Page Language="C#" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Collections.Generic" %>

<script runat="server">
        
    protected void Page_Load(object sender, EventArgs e)
    {
        List<Record> lista = new List<Record>();

        string[] files = Directory.GetFiles("c:\\");
        for (int i = 0; i < files.Length; i++)
        {
            Record r = new Record();
            r.IsGruppo = i % 4 == 0;
            r.Testo = files[i];

            lista.Add(r);
        }

        repeater.DataSource = lista;
        DataBind();


        if (IsPostBack)
            Response.Write("Selezionato: " + Request["combo"]);

    }
    

    class Record
    {
        private bool isGruppo;
        public bool IsGruppo
        {
            get { return isGruppo; }
            set { isGruppo = value; }
        }

        private string testo;
        public string Testo
        {
            get { return testo; }
            set { testo = value; }
        }
        
    }


</script>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title>Untitled Page</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>     
      
      <asp:Repeater ID="repeater" runat="server" >
        <HeaderTemplate>
            <select name="combo" 
                onchange="<%# Page.ClientScript.GetPostBackEventReference(this,null) %>" >
        </HeaderTemplate> 
        <ItemTemplate>
            <%# 
                Convert.ToBoolean(Eval("isGruppo")) ?
                   "<optgroup label=\"" + Eval("Testo") + "\" />" : 
                   "<option>" + Eval("Testo") + "</option>"
            %>      
        </ItemTemplate> 
        <FooterTemplate>
            </select>
        </FooterTemplate> 
      </asp:Repeater> 
    </div>
    </form>
</body>
</html>