private void set_define_events()
{
m_cmd_view.Click += M_cmd_view_Click;
m_dat_thang.EditValueChanged += M_dat_thang_EditValueChanged;
this.Load += F460_DANH_SACH_NHAN_VIEN_DANG_HOAT_DONG_O_CONG_TY_Load;
m_cmd_xuat_excel.Click += M_cmd_xuat_excel_Click;
this.m_grv_v_nhan_vien_dang_hoat_dong.CustomSummaryCalculate += new DevExpress.Data.CustomSummaryEventHandler(this.m_grv_v_nhan_vien_dang_hoat_dong_CustomSummaryCalculate);
}