Opening a file using dynamically created link button

[Sujeetharan]

I am writing a code for a search function. I need to search the folders for the particular file/files(only excel files/ there may be several files with the same name) & display them. I should also be able to open each of the file by clicking it.

i have succeeded in displaying the results in a dynamic table. I am using link buttons to open the files.when i click the button there is no action.
my code

namespace WebApplication3
{
    public partial class WebForm1 : System.Web.UI.Page
    {
        string sku;
        string sku_trim;
        string sku1;
        string sku_uppercase;
        string order_confirm;
        string quoation;
        string year;
        string searchwithin;
        string searchfor;
        int match;
        int number;
       LinkButton lbn;
       string path;
       string path_quote;

       private void Page_Load(object sender, EventArgs e)
       {
           year = Session["year"].ToString();
           sku = Session["search"].ToString();
           if (Session["search"] != null)
           {

               Label1.Text =  Session["search"].ToString();
               sku_trim = Label1.Text;
               sku_uppercase = sku_trim.Replace(" ", "");
               sku = sku_uppercase.ToUpper();
               order_confirmation();

           }
       }

        public void order_confirmation()
        {
                     
                DirectoryInfo static1 = new DirectoryInfo(@"C:\Users\Dell\Desktop\SKU");
                path = static1.FullName + @"\" + year + @"\OrderConfirmation";

                DirectoryInfo dir = new DirectoryInfo(path);
                //  DirectoryInfo  dir = new DirectoryInfo(@"C:\Users\Dell\Desktop\SKU\2010\OrderConfirmation");
                FileInfo[] xlsxfiles = dir.GetFiles("*.xlsx", SearchOption.AllDirectories);
                number = xlsxfiles.Count();
                //Response.Write("Order Confirmation");
                Table dynTable = new Table();
                dynTable.ID = "order_confirmation";
                dynTable.BorderWidth = 1;
                //   this.Controls.Add(dynTable);
                this.form1.Controls.Add(dynTable);

                foreach (FileInfo f in xlsxfiles)
                {


                    searchwithin = f.Name;
                    searchfor = sku;
                    match = searchwithin.IndexOf(searchfor);
                    // sku1 = sku + ".xlsx";
                    Label confirm_label = new Label();
                    Label button_perform = new Label();
                    if (match >= 0)
                    {

                        confirm_label.Text = f.FullName;
                        order_confirm = f.FullName;
                        TableRow row = new TableRow();
                        row.BorderWidth = 1;
                        TableCell cell1 = new TableCell();
                        cell1.BorderWidth = 1;
                        cell1.Controls.Add(confirm_label);
                        row.Controls.Add(cell1);
                        dynTable.Controls.Add(row);

                        TableCell cell2 = new TableCell();
                        cell2.BorderWidth = 1;

                        lbn = new LinkButton();
                        lbn.ID = f.FullName;
                        lbn.Text = "Open";
                        lbn.Command += new System.Web.UI.WebControls.CommandEventHandler(btn_open_Click);

                        lbn.CommandName = f.FullName;
                        lbn.CommandArgument = f.FullName;

                        cell2.Controls.Add(lbn);
                        row.Controls.Add(cell2);
                        dynTable.Controls.Add(row);

                        //  this.Controls.Add(new LiteralControl("<br>"));
                         //Response.Write("<br><a href=" + f.Name >" + f.FullName+ "</a>");

                    }
                    else
                    {

                    }

                }         
            
        }

       
        protected void GridView1_SelectedIndexChanged(object sender, EventArgs e)
        {

        }

        protected void btn_open_Click(object sender,CommandEventArgs e)
        {

            //HttpContext.Current.Response.Clear();
            //HttpContext.Current.Response.ClearHeaders();
            //HttpContext.Current.Response.AddHeader("Content-Disposition", "inline; filename=" + order_confirm);
            //HttpContext.Current.Response.ContentType = "application/vnd.ms-excel";
            //HttpContext.Current.Response.WriteFile(order_confirm);
            //HttpContext.Current.Response.End();
            
            Response.Write("hello");
           
           
        }
   

    }
    
}

[MartijnHoekstra]

I would check the following 2 things:
1) What happens with the "Click" event handler instead of "Command" handler
2) What happens if you make the handler public instead of protected.