Update status with label whilst importingexcel to sql

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C#

Dear All. Am new to C# and mostly dubb some codes from here. (Thanks Code project).
I need help to update my label with the string "serial". I also would like to use a progressbar to update the label status.
Find below the code am using to export from excel to sql.
I call the function openFileFile() in an import button.

private void openFileFile()
       {
           string name;
           string model;
           string serial;
           string serial2;
           string windowsuser = txtuserid.Text;
           string createdate = txtcreated.Text;
           string cost = txtcost.Text;
           string quantity = txtquantity.Text;
           string active = "1";
           string filepath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.Desktop), "product.xls");
           bool flag = true;
           Econ = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties=Excel 8.0");
           try
           {
               OleDbCommand ocmd = new OleDbCommand("select * from [Sheet1$]", Econ);
               Econ.Open();
               OleDbDataReader odr = ocmd.ExecuteReader();
               if (odr.HasRows)
               {
                   while (odr.Read())
                   {
                       name = odr.GetValue(0).ToString();
                       model = odr.GetValue(1).ToString();
                       serial = odr.GetValue(2).ToString();
                       serial2 = odr.GetValue(3).ToString();
                       importexcel(name, model, serial, serial2, windowsuser, createdate, cost, quantity, active);
                   }

                   flag = false;
               }
               else
               {
                   lblstat.Text= "Object reference not set.Empty worksheet.";
                   timer.Stop();
                   //MessageBox.Show("Object reference not set.\nError: Empty worksheet.", "Inventory");
               }

           }
           catch (Exception ex)
           {
               MessageBox.Show(ex.ToString());
           }
       }
       public void importexcel(string name, string model, string serial, string serial2, string windowsuser, string createdate, string cost, string quantity, string active)
       {
           con = new SqlConnection(connection);
           string seek = "select * from productx where serial='" + serial + "'";
           SqlCommand cmd2 = con.CreateCommand();
           cmd2.CommandText = seek;
           con.Open();
           SqlDataReader dr;
           dr = cmd2.ExecuteReader();
           if (dr.HasRows)
           {
               while (dr.Read())
               {
                   lblstat.Text = "Error importing duplicate serial number: " + serial;
                   //MessageBox.Show("Error importing duplicate serial number:" + "\n" + serial, "Inventory");

               }

           }
           else
           {

               try
               {
                   con.Close();
                   string insertexcel = "insert into productx(name, model, serial, serial2,windowsuser,Ondate,cost,quantity,status)values(@name, @model, @serial, @serial2,@wuser,@date,@cost,@quantity,@stat)";
                   SqlCommand cmd = con.CreateCommand();
                   cmd.CommandText = insertexcel;
                   cmd.Parameters.AddWithValue("@name", SqlDbType.NVarChar).Value = name;
                   cmd.Parameters.AddWithValue("@model", SqlDbType.NVarChar).Value = model;
                   cmd.Parameters.AddWithValue("@serial", SqlDbType.NVarChar).Value = serial;
                   cmd.Parameters.AddWithValue("@serial2", SqlDbType.NVarChar).Value = serial2;
                   cmd.Parameters.AddWithValue("@wuser", SqlDbType.NVarChar).Value = windowsuser;
                   cmd.Parameters.AddWithValue("@date", SqlDbType.NVarChar).Value = createdate;
                   cmd.Parameters.AddWithValue("@cost", SqlDbType.NVarChar).Value = cost;
                   cmd.Parameters.AddWithValue("@quantity", SqlDbType.NVarChar).Value = quantity;
                   cmd.Parameters.AddWithValue("@stat", SqlDbType.NVarChar).Value = active;
                   cmd.CommandType = CommandType.Text;
                   con.Open();
                   cmd.ExecuteNonQuery();
                   timer.Start();
                   lblstat.Text = "Importing File with serial number: " + serial;
                   //MessageBox.Show("File import succesful for serial number: " + serial, "Inventory");
                   con.Close();
               }
               catch (Exception ex)
               {
                   MessageBox.Show(ex.ToString());
               }
           }
       }