visual c# gridview with parameter

 private void button1_Click_3(object sender, EventArgs e)
        {
            string connectionString = null;
            SqlConnection cnn;
            connectionString = "Server = " + AYARLAR.txtServerc + "; Database = " + AYARLAR.txtVeritabanic + "; User Id = " + AYARLAR.txtKullanicic + "; Password = " + AYARLAR.txtParolac;




            FileInfo file = new FileInfo(Application.StartupPath + "\\SQL.txt");
            string script = file.OpenText().ReadToEnd();

            cnn = new SqlConnection(connectionString);

            SqlDataAdapter da = new SqlDataAdapter(script, cnn);
            da.SelectCommand.Parameters.AddWithValue("@tarih1", dateEdit1.Text);
            da.SelectCommand.Parameters.AddWithValue("@tarih2", dateEdit2.Text);
            DataTable dt = new DataTable();

            da.Fill(dt);
            gridControl1.DataSource = dt;
            gridView1.ExpandAllGroups();
            gridView1.GroupFooterShowMode = GroupFooterShowMode.VisibleAlways;
            // Create and setup the first summary item.

            GridGroupSummaryItem item1 = new GridGroupSummaryItem();
            item1.FieldName = "Odeme Tutari";
            item1.SummaryType = DevExpress.Data.SummaryItemType.Sum;
            item1.DisplayFormat = "Odeme Tutari {0:c2}";
            item1.ShowInGroupColumnFooter = gridView1.Columns["Odeme Tutari"];
            gridView1.GroupSummary.Add(item1);

            {
                //GridView RunTime Gruplama
                GridColumn Grupla = gridView1.Columns["Odeme Tipi"];

                gridView1.BeginSort();
                try
                {
                    gridView1.ClearGrouping();
                    Grupla.GroupIndex = 0;
                }
                finally
                {
                    gridView1.EndSort();
                }
                gridView1.ExpandAllGroups();
            }

            gridView1.Columns["Odeme Tutari"].SummaryItem.SummaryType = DevExpress.Data.SummaryItemType.Sum;
            gridView1.Columns["Odeme Tutari"].SummaryItem.DisplayFormat = "Odeme Toplam = {0}";
            gridView1.BestFitColumns();
            gridView1.Columns["Odeme Tutari"].DisplayFormat.FormatType = FormatType.Numeric;
            gridView1.Columns["Odeme Tutari"].DisplayFormat.FormatString = "c2";

            gridView1.Columns["Iade Tutari"].SummaryItem.SummaryType = DevExpress.Data.SummaryItemType.Sum;
            gridView1.Columns["Iade Tutari"].SummaryItem.DisplayFormat = "Iade Toplam = {0}";
            gridView1.BestFitColumns();
            gridView1.Columns["Iade Tutari"].DisplayFormat.FormatType = FormatType.Numeric;
            gridView1.Columns["Iade Tutari"].DisplayFormat.FormatString = "c2";

            gridView1.Columns["Odeme Tipi"].SortOrder = DevExpress.Data.ColumnSortOrder.Descending;

            gridView1.BestFitColumns();
        }

visual c# update ms sql table from query inside txt file

 // MessageBox.Show(Text_malzeme_grubu.EditValue.ToString());
            //  string connectionString = null;
            SqlConnection connectionString = new SqlConnection("Server = " + ondegerler.SQLBAGLANTISI_KAYNAK + "; Database = " + ondegerler.SQLBAGLANTISI_VERITABANI + "; User Id = " + ondegerler.SQLBAGLANTISI_KULLANICI + "; Password = " + ondegerler.SQLBAGLANTISI_PAROLA);
            connectionString.Open();
            FileInfo file = new FileInfo(Application.StartupPath + "\\tbl_cari_kartlari_duzenle_kaydet.txt");
            string duzenle = file.OpenText().ReadToEnd();
            //MessageBox.Show(silinecekkod.ToString());
            SqlCommand sqlcom = new SqlCommand(duzenle, connectionString);
            sqlcom.Parameters.AddWithValue("@cari_turu", Text_cari_turu.Text.Trim());
            sqlcom.Parameters.AddWithValue("@cari_adi", Text_cari_adi.Text.Trim());
            sqlcom.Parameters.AddWithValue("@irtibat", Text_irtibat.Text.Trim());
            sqlcom.Parameters.AddWithValue("@adres", Text_adres.Text.Trim());
            sqlcom.Parameters.AddWithValue("@paremetre", text_paremetre.Text.Trim());
            sqlcom.Parameters.AddWithValue("@cari_kodu", Text_cari_kodu.Text.Trim());




            sqlcom.ExecuteNonQuery();
            connectionString.Close();
            MessageBox.Show("Cari Başarıyla Düzenlendi!", "CARİ KARTI DÜZENLEME", MessageBoxButtons.OK, MessageBoxIcon.Information);
/*txt file =*/
update tbl_cariler
set cari_turu=@cari_turu , cari_adi = @cari_adi ,irtibat=@irtibat , adres = @adres, paremetre = @paremetre
where cari_kodu = @cari_kodu

gridview connect to ms sql with txt file query and get data to gridview with summary

  string connectionString = null;
            SqlConnection cnn;
            connectionString = "Server = " + ondegerler.SQLBAGLANTISI_KAYNAK + "; Database = " + ondegerler.SQLBAGLANTISI_VERITABANI + "; User Id = " + ondegerler.SQLBAGLANTISI_KULLANICI + "; Password = " + ondegerler.SQLBAGLANTISI_PAROLA;
            FileInfo file = new FileInfo(Application.StartupPath + "\\tbl_cariler.txt");
            string script = file.OpenText().ReadToEnd();
            cnn = new SqlConnection(connectionString);
            SqlDataAdapter da = new SqlDataAdapter(script, cnn);
            DataTable dt = new DataTable();
            da.Fill(dt);
            gridControl1.DataSource = dt;
            gridView1.Columns[1].SummaryItem.SummaryType = DevExpress.Data.SummaryItemType.Count;
            gridView1.Columns[1].SummaryItem.DisplayFormat = "Adet = {0}";

            gridView1.Columns["Bakiye"].SummaryItem.SummaryType = DevExpress.Data.SummaryItemType.Sum;
            gridView1.Columns["Bakiye"].SummaryItem.DisplayFormat = "Toplam = {0}";
            gridView1.BestFitColumns();