private void set_define_events()
{
m_cmd_search.Click +=m_cmd_search_Click;
m_cmd_xuat_excel.Click +=m_cmd_xuat_excel_Click;
m_cmd_insert.Click +=m_cmd_insert_Click;
m_cmd_update.Click += m_cmd_update_Click;
m_cmd_delete.Click += m_cmd_delete_Click;
m_cmd_import_excel.Click += m_cmd_import_excel_Click;
this.Load += f303_tnk_ngoai_bang_luong_Load;
m_dat_thang.DateTimeChanged += M_dat_thang_DateTimeChanged;
}