mdb-dekiiki tabloya veri atma hatasi

using
System;

using
System.Collections;

using
System.ComponentModel;

using
System.Data;

using
System.Data.OleDb;

using
System.Drawing;

using
System.Windows.Forms;

 

 

 

 

 

namespace
rahmanfashion

{

    public partial class Pray_List : System.Windows.Forms.Form

    {

        public
Pray_List()

        {

            InitializeComponent();

        }

 

        private
void NCixis_Click(object
sender, EventArgs e)

        {

            Close();

        }

 

        private
void button5_Click(object
sender, EventArgs e)

        {

            Close();

        }

 

        private
void NElave_Click(object
sender, EventArgs e)

        {

            try

            {

              

                System.Data.DataRow elave;

                cb = new
OleDbCommandBuilder(adp);

 

                elave = dt.Tables["Prays,Sklad"].NewRow();

 

                elave["Prays.Kod_Name"]
= NKod.Text;

                elave["Prays.Qiymet"]
= NQiymet.Text;

                elave["Sklad.Metr"]
= NMetr.Text;

                elave["Sklad.Yard"]
= NYard.Text;

              

                dt.Tables["Prays,Sklad"].Rows.Add(elave);

                adp.Update(dt, "Prays,Sklad");

                dt.Clear();

                adp.Fill(dt.Tables[0]);

                dataGridView2.DataSource =
dt.Tables[0];

                          

             

                MessageBox.Show(" Накладная добавлено!", "Удачно");

            }

            catch

            {

                MessageBox.Show("Обнаружено Ошибка, Hata Bulundu");

            }

            }

        OleDbConnection
odc;

        OleDbDataAdapter
adp;

        DataSet
dt;

        OleDbCommandBuilder
cb;

 

        private
void Pray_List_Load(object
sender, EventArgs e)

        {

 

 

            string
baglanti = "Provider=Microsoft.Jet.OLEDB.4.0;Data
Source=" + System.Windows.Forms.Application.StartupPath.ToString()
+ "\\Prays List.mdb";

            string
sorgu = "SELECT
Prays.Kod_Name,Prays.Qiymet,Sklad.Metr FROM Prays,Sklad";

            odc = new
OleDbConnection(baglanti);

            adp = new
OleDbDataAdapter(sorgu, odc);

            dt = new
DataSet();

 

            adp.Fill(dt, "Prays,Sklad");

            dataGridView2.ReadOnly = true;

            dataGridView2.DataSource =
dt.Tables[0];

 

           

           

        }

        }

 

       

    }

 

 

 Boyle yaziyorum. Derlemede hata yok ama Program calistiginda hata veriyioyr.. Hep hata bluundu mesajini aliyorum..

Bide ben mdb -de +, -, /, * gibi islemleri nasil aparirim ama bunu disaridan yani bir dll dosyasi hazirlayip yazmak istyrum ornek kod verirseniz cok memnun olurum..

Biliyorum cok soru soruyorum ozur dilerim......

ZCok tesekur ederim herkese