C#'da CS0122 Kodu Sorunu

Form1 kodum:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using System.Data.OleDb;



namespace TeknikServis_Kayıt

{

    public partial class Form1 : Form

    {

        public Form2 frm2;

        public Form1()

        {

            InitializeComponent();

            frm2 = new Form2();

            frm2.frm1 = this;



        }

        OleDbConnection ziyahocaodevbaglantisi = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=database.mdb");

        DataTable tablo = new DataTable();

        OleDbCommand komut = new OleDbCommand();

        public void datacheck()

        {

            tablo.Clear();

            OleDbDataAdapter adptr = new OleDbDataAdapter("Select * From Musteri", ziyahocaodevbaglantisi);

            adptr.Fill(tablo);

            dataGridView1.DataSource = tablo;



        }



        private void Form1_Load(object sender, EventArgs e)

        {

            txtadi.Focus();

            datacheck();

            dataGridView1.Columns[0].HeaderText = "Adı";

            dataGridView1.Columns[1].HeaderText = "Soyadı";

            dataGridView1.Columns[6].HeaderText = "Arıza";

         

        }



        private void button1_Click(object sender, EventArgs e)

        {

            try

            {





                ziyahocaodevbaglantisi.Open();

                komut.Connection = ziyahocaodevbaglantisi;

                komut.CommandText = "INSERT INTO Musteri(Adi,Soyadi,Tel,Adres,Marka,Model,Ariza,Fiyat,Tarih) VALUES('" + txtadi.Text + "','" + txtsoyadi.Text + "','" + txttel.Text + "','" + txtadres.Text + "','"

                  + txtMarka.Text + "','" + txtModel.Text + "','" + txtArıza.Text + "','" + txtFiyat.Text +

                  "','" + dateTimePicker1.Value.ToShortDateString() + "')";

                komut.ExecuteNonQuery();

                ziyahocaodevbaglantisi.Close();

                datacheck();

                MessageBox.Show("Kayıt Ekleme İşlem Başarıyla Tamamlandı", "Bilgi", MessageBoxButtons.OK, MessageBoxIcon.Information);



            }

            catch (Exception)

            {

                MessageBox.Show("Aynı Kayıt Tekrar Eklenemez!");

                ziyahocaodevbaglantisi.Close();



            }



        }



        private void button2_Click(object sender, EventArgs e)

        {

            try

            {

                DialogResult cevap;

                cevap = MessageBox.Show("Kaydı Silmek İstediğinizden Eminmisiniz?", "Uyarı", MessageBoxButtons.YesNo, MessageBoxIcon.Information);

                if (cevap == DialogResult.Yes)

                {

                    ziyahocaodevbaglantisi.Open();

                    komut.Connection = ziyahocaodevbaglantisi;

                    komut.CommandText = "Delete From Musteri Where Tel='" + dataGridView1.CurrentRow.Cells[2].Value.ToString() + "'";

                    komut.ExecuteNonQuery();

                    ziyahocaodevbaglantisi.Close();

                    datacheck();

                    MessageBox.Show("Silindi", "Bilgi", MessageBoxButtons.OK, MessageBoxIcon.Information);

                }

            }

            catch (Exception)

            {



                MessageBox.Show("Hata!", "Uyarı");

            }

        }



        private void button3_Click(object sender, EventArgs e)

        {

            frm2.ShowDialog();

        }



        private void pictureBox1_Click(object sender, EventArgs e)

        {



        }

    }

}

Form2 kodum:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using System.Data.OleDb;



namespace TeknikServis_Kayıt

{

    public partial class Form2 : Form

    {

        public Form1 frm1;

       

        public Form2()

        {

            InitializeComponent();

        }

        OleDbConnection ziyahocaodevbaglantisi = new OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=database.mdb");

        OleDbCommand komut = new OleDbCommand();



        private void Form2_Load(object sender, EventArgs e)

        {

            try

            {

                txtAdi.Text = Form1.dataGridView1.CurrentRow.Cells[0].Value.ToString();

                txtSoyadi.Text = frm1.dataGridView1.CurrentRow.Cells[1].Value.ToString();

                txtTel.Text = frm1.dataGridView1.CurrentRow.Cells[2].Value.ToString();

                txtAdres.Text = frm1.dataGridView1.CurrentRow.Cells[3].Value.ToString();

                txtMarka.Text = frm1.dataGridView1.CurrentRow.Cells[4].Value.ToString();

                txtMarka.Text = frm1.dataGridView1.CurrentRow.Cells[5].Value.ToString();

                txtAriza.Text = frm1.dataGridView1.CurrentRow.Cells[6].Value.ToString();

                txtMarka.Text = frm1.dataGridView1.CurrentRow.Cells[7].Value.ToString();

                dateTimePicker1.Text = frm1.dataGridView1.CurrentRow.Cells[8].Value.ToString();



            }

            catch (Exception)

            {

                MessageBox.Show("Boş Kayıt Güncellenemez!", "Uyarı");

            }

        }



        private void button1_Click(object sender, EventArgs e)

        {

            try

            {

                ziyahocaodevbaglantisi.Open();

                komut.Connection = ziyahocaodevbaglantisi;

                komut.CommandText = "update Musteri set Adi='" + txtAdi.Text + "',Soyadi='" + txtSoyadi.Text + "',Tel='" +

                    txtTel.Text + "',Adres='" + txtAdres.Text + "',Marka='" + txtMarka.Text + "',Model='" + txtModel.Text + "',Ariza='" + txtAriza.Text + "',Fiyat='"

                    + txtFiyat.Text + "',Tarih='" + frm1.dataGridView1.CurrentRow.Cells[2].Value.ToString() + "'";

                komut.ExecuteNonQuery();

                ziyahocaodevbaglantisi.Close();

                frm1.datacheck();

                MessageBox.Show("Güncelleme İşlemi Tamamlandı", "Bilgi", MessageBoxButtons.OK, MessageBoxIcon.Information);

                this.Close();

            }

            catch (Exception) {



                MessageBox.Show("Güncelleme Yapılamadı", "Uyarı");

            }

        }

    }

}