private void set_define_events()
{
m_cmd_tai_file_mau.Click += m_cmd_tai_file_mau_Click;
m_cmd_import_excel.Click +=m_cmd_import_excel_Click;
m_cmd_luu.Click +=m_cmd_luu_Click;
this.Load += f305_tnk_ngoai_bang_luong_xls_Load;
//m_sle_quy_tien.EditValueChanged += m_sle_quy_tien_EditValueChanged;
}