private void Form1_Load(object sender, EventArgs e) { Application.CurrentCulture = CultureInfo.InvariantCulture; checkBoxHeaderCell = new DataGridViewCheckBoxHeaderCell(); schemeDataGrid.Columns.Insert(0, new DataGridViewCheckBoxColumn()); schemeDataGrid.Columns[0].HeaderText = "Выбрать"; schemeDataGrid.Columns[0].HeaderCell = checkBoxHeaderCell; schemeDataGrid.Columns[0].Frozen = true; schemeDataGrid.Columns[0].Width = 40; schemeDataGrid.CellValueChanged += schemeDataGrid_CellValueChanged; schemeDataGrid.Columns["toleranceColumn"].HeaderCell.Style.BackColor = Color.White; loadSchemeFromFile(fileName); calculationsBackgroundWorker.WorkerReportsProgress = true; }