private void btnAddJob_Click(object sender, EventArgs e)
        {
            frmAddOrEdit frmAdd = new frmAddOrEdit();

            frmAdd.ShowDialog();
            //重新顯示資料
            gvJobGridView.DataSource = null;
            gvJobGridView.DataSource = Jobs.JobDatas;
        }
        private void btnEditJob_Click(object sender, EventArgs e)
        {
            string JobId = GetJobIdFromSelectRow();

            if (!string.IsNullOrEmpty(JobId))
            {
                frmAddOrEdit frmAdd = new frmAddOrEdit(JobId);
                frmAdd.ShowDialog();
                gvJobGridView.DataSource = null;
                gvJobGridView.DataSource = Jobs.JobDatas;
            }
            else
            {
                MessageBox.Show("請選擇一筆 Job 資料。", this.Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
            }
        }