前端项目实战肆佰零陆react-admin和material ui-stack

<Stack direction="row" spacing={2}>
        <SaveButton sx={{ height: "36px", mt: '9px', mj: 2 }}
          type='button' mutationOptions={{
            onSuccess: (params: any) => {
              update('t_prod_step', { id: params.id, data: params }, {
                onSuccess: () => {
                  redirect(false)
                  refresh();
                }
              })
              if (expand) {
                toggleExpanded()
              }
            }
          }}
        >
         
        </SaveButton>
        <Button variant='contained' sx={{ height: "36px", mt: '9px', mj: 2 }} onClick={() => toggleExpanded()}>
          取消
        </Button>
      </Stack>