private void AdmAreaFilter_Click(object sender, EventArgs e)
        {

            foreach (DataGridViewCell cell in dataGridView1.SelectedCells)
            {
                if (dataGridView1.SelectedCells.Count == 1)
                {
                    if (cell.ColumnIndex == 4)
                    {
                        int k = csv.Rows.Count;
                        for (int i = 1; i < k; i++)
                        {
                            if (currentList[i].ChiefName != cell.Value.ToString()) { csv.Rows.RemoveAt(i); i--; k--; }
                        }
                    }
                }

            }
            currentList = Theater.CreateObjects(csv.Rows);
            FullDaGrid(currentList, (int)numericUpDown.Value);
        }