private void 编辑服务员btn_Click(object sender, EventArgs e)
        {
            int selectCount = 0;

            foreach (DataGridViewRow r in waiterDataView.SelectedRows)
            {
                selectCount++;
            }
            if (selectCount > 1)
            {
                MessageBox.Show("一次只能编辑一位职工!", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                return;
            }
            else if (selectCount == 0)
            {
                MessageBox.Show("请选择要编辑的职工!", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                return;
            }
            修改职工信息Form updateWaiterForm = new 修改职工信息Form();

            updateWaiterForm.ID      = waiterDataView.SelectedCells[0].Value.ToString();
            updateWaiterForm.oldName = waiterDataView.SelectedCells[1].Value.ToString();
            updateWaiterForm.sex     = waiterDataView.SelectedCells[2].Value.ToString();
            updateWaiterForm.flat    = 0;
            updateWaiterForm.Show();
        }
        private void 编辑厨师btn_Click(object sender, EventArgs e)
        {
            if (chrefDataView.SelectedRows.Count > 1)
            {
                MessageBox.Show("一次只能编辑一位职工!", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                return;
            }
            else if (chrefDataView.SelectedRows.Count == 0)
            {
                MessageBox.Show("请选择要编辑的职工!", "操作提示", MessageBoxButtons.OK, MessageBoxIcon.Warning);
                return;
            }
            修改职工信息Form updateChrefForm = new 修改职工信息Form();

            updateChrefForm.ID      = chrefDataView.SelectedCells[0].Value.ToString();
            updateChrefForm.oldName = chrefDataView.SelectedCells[1].Value.ToString();
            updateChrefForm.sex     = chrefDataView.SelectedCells[2].Value.ToString();
            updateChrefForm.oldJob  = chrefDataView.SelectedCells[3].Value.ToString();
            updateChrefForm.flat    = 1;
            updateChrefForm.Show();
        }