Automapper 舍入小数/去除精度

Question

我正在将实体模型映射到 UI 模型，但是在映射完成后，几个字段正在向下舍入。所有受影响的字段都是相同的类型 decimal? ，当从数据库中提取它时，该字段是 8245.82 但是一旦映射它是 8245.00

public IActionResult View(Guid Id)
{
     try
     {
           DealEx entity = _dealService.Get(m => m.Id == Id);
           var model = _mapper.Map<DealUI>(entity);
           AddReferenceData(model);
           return PartialView("_deal", model);
       }
       catch (Exception ex)
       {
           this.ProcessException(ex, _logger);
           return View("Error");
        }
}

我假设这是 Automapper 中的内容？当 entity 模型被拉出时，值是正确的，然后我对其进行映射，并且 model 中的值现在向下舍入。

可能还值得一提的是 DealUI 继承了 DealEx 。

public class DealUI : DealEx
{
    public DealUI()
    {
    }

    // just some select lists in here , northing of interest to this 
}

public class DealEx
{
   public DealEx(){}

   public decimal? BillValue {get; set;}

   // obivously alot more in this model but it's a big ole model so copying  it all seems a bit pointless
}

包括映射要简洁

 CreateMap<DealEx, DealUI>();
 CreateMap<DealUI, DealEx>();

干杯

Answer 1

试试这个：

protected override void OnModelCreating(DbModelBuilder modelBuilder)
    {
        modelBuilder.Entity<NameOfEntity>()
                    .Property(p => p.NameOfProperty)
                    .HasPrecision(9, 4); // or whatever your schema specifies
    }