Bind Days, Months and Year To Dropdown

 using System.Globalization;


protected void Fill_DD_MM_YYYY()
        {
        //  Date.
        for (int i = 1; i <= System.DateTime.DaysInMonth(DateTime.Now.Year, DateTime.Now.Month); i++)
        {
            ddlDay.Items.Add(i.ToString());
        }
        ddlDay.Items.Insert(0, "Select");
        ddlDay.SelectedIndex = 0;


        //  Months.
        ListItem lcc;
        foreach (string item in DateTimeFormatInfo.CurrentInfo.MonthNames)
        {
            if (item != "")
            {
                lcc = new ListItem();
                lcc.Text = item;
                lcc.Value = item;
                ddlMonths.Items.Add(lcc);
            }
        }
        ddlMonths.Items.Insert(0, "Select");
        ddlMonths.SelectedIndex = 0;



        //  Years.
        for (int i = 0; i <= 30; i++)
        {
            ddlYear.Items.Add((1990 + i).ToString());
        }
        ddlYear.Items.Insert(0, "Select");
        ddlYear.SelectedIndex = 0;
    }



Days: <asp:DropDownList ID="ddlDay" runat="server"></asp:DropDownList><br/>
       
Months:<asp:DropDownList ID="ddlMonths" runat="server"></asp:DropDownList><br/>

Years:<asp:DropDownList ID="ddlYear" runat="server"></asp:DropDownList><br/>