Question

我尝试使用Petapoco更新一些日期时间字段，但更新总是失败，所以我查找了我的SQL分析器并找到了以下执行语句。

    exec sp_executesql N'UPDATE [db_Product] SET [aName] = @0, [aDesc] = @1, [EmpID] = @2, [UPCCode] = @3, [isActive] = @4, [isExpendable] = @5, [ProductCatID] = @6, [ProductSubCatID] = @7, [PromoCatID] = @8, 
    [Property1Name] = @9, [Property2Name] = @10, [RackPrice] = @11, [DiscountMethod] = @12, [DiscountAmount] = @13, [SellingPrice] = @14, [Cost] = @15, [CurrencyType] = @16, [qtyPerSaleMin] = @17, 
    [qtyPerSaleMax] = @18, [SupplierID] = @19, [BrandID] = @20, [StartDate] = @21, [EndDate] = @22, [MadeIn] = @23, [TakeStockName] = @24, [LifeCycleName] = @25, [ReOrderQty] = @26, [ReOrderPoint] = @27, 
    [ReOrderDays] = @28, [PreOrderDays] = @29, [aMemo] = @30, [Updator] = @31, [DateUpdate] = @32 WHERE [ProductID] = @33',N'@0 nvarchar(4000),@1 nvarchar(4000),@2 int,@3 nvarchar(4000),@4 int,@5 int,@6 int,@7 
    int,@8 int,@9 nvarchar(4000),@10 nvarchar(4000),@11 decimal(4,4),@12 nvarchar(4000),@13 decimal(4,4),@14 decimal(4,4),@15 decimal(4,4),@16 nvarchar(4000),@17 int,@18 int,@19 int,@20 int,@21 datetime,@22 
    datetime,@23 nvarchar(4000),@24 nvarchar(4000),@25 nvarchar(4000),@26 int,@27 int,@28 int,@29 int,@30 nvarchar(4000),@31 int,@32 datetime,@33 
    int',@0=N'testxxx',@1=N'',@2=0,@3=N'',@4=0,@5=0,@6=1,@7=0,@8=0,@9=N'Color',@10=N'Size',@11=0,@12=N'%',@13=0,@14=0,@15=0,@16=N'TWD',@17=0,@18=0,@19=0,@20=0,

@21=''2013-01-20 12:28:00:000'',@22=''2063-01-20 12:28:00:000'', <--problem

@23=N'TW ',@24=N'週盤',@25=N'新品',@26=1,@27=1,@28=3,@29=1,@30=N'',@31=0,

@32=''2013-02-04 02:45:47:640'' <----problem

,@33=1

出于某种原因，所有日期时间字段都有''，因此会导致更新错误。

编辑： C＃代码，BAL

public int Update(int _id, ProductManager _M)
{
    int result = _M.Product.UpdateByID(_id, _M.Product);

    return result;

}

C＃代码，DAL

public virtual int UpdateByID(int _id, db_Product data)
{
    data.DateUpdate = DateTime.Now;
     using (var db = new ConnClass().ConnDB())
     {
         var result = db.Update(data, _id);
         return result;
     }
}

BAL _M.Product.UpdateByID（_id，_M.Product）; 将更新发送到DAL代码以进行更新。我检查了 ProductManager _M 中的值，dateTime值有效。

Petapoco执行命令

    UPDATE [db_Product] SET [aName] = @0, [aDesc] = @1, [EmpID] = @2, [UPCCode] = @3, [isActive] = @4, [isExpendable] = @5, [ProductCatID] = @6, [ProductSubCatID] = @7, 
[PromoCatID] = @8, [Property1Name] = @9, [Property2Name] = @10, [RackPrice] = @11, [DiscountMethod] = @12, [DiscountAmount] = @13, [SellingPrice] = @14, [Cost] = @15, [CurrencyType] = @16, [qtyPerSaleMin] = @17, [qtyPerSaleMax] = @18, [SupplierID] = @19, [BrandID] = @20, 
[StartDate] = @21, [EndDate] = @22, [MadeIn] = @23, [TakeStockName] = @24, [LifeCycleName] = @25, [ReOrderQty] = @26, [ReOrderPoint] = @27, [ReOrderDays] = @28, [PreOrderDays] = @29, 
[aMemo] = @30, [Updator] = @31, [DateUpdate] = @32 WHERE [ProductID] = @33

我已经花了几天调试这个有趣的结果......

Answer 1

Petapoco使用ADO.net UPDATE运行ExecuteNonQuery()语句，并返回此函数返回的值。

此功能的文档说明：

对于UPDATE，INSERT和DELETE语句，返回值为受命令影响的行数。当a上存在触发器时正在插入或更新的表，返回值包括数字受插入或更新操作影响的行数和数字受触发器或触发器影响的行数。对于所有其他类型的语句，返回值为-1。如果发生回滚，则返回值也是-1。

来源：MSDN

Petapoco更新日期时间错误

1 个答案: