gvDetail.OptionsView.RowAutoHeight = true;

//明细表格加载图片右键菜单
DetailImageManager.LoadImageMenu(this, gvDetail, rep_ImgSmall, nameof(res_tb_QOs.ImgLarge),
(large, small) =>
{
    var row = gvDetail.GetObject<res_tb_QOs>();
    if (large != null)//加载图片
    {
        row.ImgLarge = large;
        row.ImgSmall = small;
    }
    else//删除图片
    {
        row.ImgLarge = null;
        row.ImgSmall = null;
        row.Img_isid = null;
    }
});

/// <summary>
/// 大图片
/// </summary>
public byte[] ImgLarge { get; set; }

/// <summary>
/// 小图片
/// </summary>
public byte[] ImgSmall { get; set; }

/// <summary>
/// 图片记录isid主键值
/// </summary>
public string Img_isid { get; set; }

var q_Images = _Database.GetQueryable<dt_Images>().Where(w => w.DocType == ImageDocType.QO.ToString());

//明细表res模型
var listDetail = (from s in q_tb_QOs//明细表                              
                  join c in q_Images on s.isid equals c.DocNo into tmp1//关联逻辑：明细表isid = dt_images.DocNo
                  from c in tmp1.DefaultIfEmpty()
                  where s.QONO == docNo.Trim()//外键，关联主表单据号码
                  select new res_tb_QOs
                  {
                        //
                        //省略....
                        //
                        //图片资料
                        ImgLarge = c.ImgLarge,
                        ImgSmall = c.ImgSmall,
                        Img_isid = c.isid,
                  }

//创建用于保存的临时数据
var data = new BusinessData<tb_QO, tb_QOs>
{
    Master = ObjectHelper.Convert<tb_QO>(input.Master),//主表
    Details = ObjectHelper.ConvertList<tb_QOs>(input.Details),//明细                
};

#region 保存图片

//获取明细表的图片
var listImages = this.GetImageData(input.Details);//图片

var isids = _Database.GetQueryable<tb_QOs>().Where(w => w.QONO == data.Master.QONO)
    .Select(s => s.isid).ToList();

listImages.ForEach(i => i.MasterDocNo = data.Master.QONO);//设置单据号码
this.UpdateImage(_Database, ImageDocType.QO, data.Master.QONO, listImages, isids);

#endregion;

/// <summary>
/// 获取明细表的图片资料
/// </summary>
/// <returns></returns>
public List<dt_Images> GetImageData(List<res_tb_QOs> listDetail)
{
    var list = listDetail.Where(w => w.ImgSmall != null).Select(s => new dt_Images
    {
        isid = s.Img_isid,
        Title = $"{ImageFormat.Jpeg}:{s.ProductName},{s.Description}".GetLeft(100),
        ImgLarge = s.ImgLarge,
        ImgSmall = s.ImgSmall,
        DocType = ImageDocType.QO.ToString(),
        DocNo = s.isid,
        MasterDocNo = s.QONO,
        ImageType = ImageFormat.Jpeg.ToString(),
        Remark = s.Remark
    }).ToList();

    return list;
}