private void 작업지시등록ToolStripMenuItem_Click(object sender, EventArgs e)
{
WorkOrder_mng wo = new WorkOrder_mng();
wo.MdiParent = this;
wo.Show();
wo.WindowState = FormWindowState.Maximized;
}
//신규버튼 클릭
private void button2_Click(object sender, EventArgs e)
{
WorkOrder_mng work_order = new WorkOrder_mng();
work_order.Show();
}