我是ADo.net entity框架的新手,我收到以下错误
The type 'Edm.Byte' of the member 'IsActive' in the conceptual side type
NopSolutions.NopCommerce.BusinessLogic.Data.Language' does not match with the type
System.Boolean' of the member 'IsActive' on the object side type NopSolutions.NopCommerce.BusinessLogic.Directory.Language'.
据我所知,有一些与edm和object的数据类型相关的缺失
但是我在数据库表中创建了一个列类型,在langauge.csi中声明了属性
public bool IsActive { get; set; }
我可以在这里发布所需的任何细节
编辑:
因为我谷歌周围我在stackoverflow上发现了这个问题
et-model-property-to-boolean-in-entity-framework,它将Byte更改为Boolean以映射tinyint
但在我的情况下,我在数据库中也有点.
我希望能够传递一天中的数字,如1,2,3或7,它将返回日期名称,如星期日,星期一,星期二或星期六.我知道可以选择使用case语句,但是我想使用SQL命令这样做,这是否可能？
DECLARE @m VARCHAR
SET @m=1
SELECT CASE WHEN @m=1 THEN 'Sunday' END
我在寻找答案时已经对这个问题发表了评论,但用户@harper建议我提交一个包含完整描述的新问题.
编辑: 目前对案例陈述给出了答案,除了一个.所以现在我再次提出我的问题
"我想用SQL命令做这件事,这有可能吗？"
我是网络编程的新手,我正在尝试制作推特克隆版.此时,我有3个表:
用户(id,name)
推文(id,content,user_id)
粉丝(id,user_id,following_id)
因此,对于sql也是新手,我正在尝试构建一个SQL语句,它将返回当前登录用户和他所关注的每个人的推文.
我试图使用这个有时有效的语句,但有时候,我得到一个错误,上面写着"Subquery返回多行".这是声明:
SELECT * FROM tweets
WHERE user_id IN
((SELECT following_id FROM followers
WHERE user_id = 1),1) ORDER BY date DESC
我对这个说法没有任何好运; 任何帮助将不胜感激!谢谢.
我有一个表tblspmaster,其中sp列我有唯一的索引,所以将不会插入重复项,但我想插入重复的行tblspduplicate.所以我决定为此写出触发器.在主表中,tblspmaster将使用Load File插入记录mysql
create trigger tblspmaster_noduplicate
before insert on tblspmaster
for each row
begin
if ( select count(sp) from tblspmaster where sp=new.sp > 0 )then
insert into tblspduplicate (sp,FileImported,AMZFileName) values (NEW.sp,NEW.FileImported,NEW.AMZFileName)
END
END
我有问题清单
这是正确的方法来停止重复并插入另一个表吗？
我的触发器没有执行,因为它显示了一些语法错误
错误的反应是 Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'END END' at line 7
****** …
我正在使用sql server 2008 R2,由于一个问题,我能够知道smalldatetime将ss舍入到最接近的分钟.这是来自MSDN的内容.
ss is two digits, ranging from 00 to 59, that represent the second. Values that are 29.998 seconds or less are rounded down to the nearest minute, Values of 29.999 seconds or more are rounded up to the nearest minute.
现在我面临一个问题,因为我将我的参数类型设置storedproceduer为smalldatetime,当我将'2014-03-23 23:59:59'其转换为日期时2014-03-24 00:00:00
我发现,我应该从转换参数的解决方案smalldatetime,以nvarchar(30)
问题解决了.
但我真正的问题是为什么这种smalldatetime四舍五入的行为ss会改变这一天？
你可以尝试以下查询
DECLARE @EndDate smallDatetime
SET @EndDate = '2014-03-23 23:59:59'
SELECT @EndDate
DECLARE @EndDate smallDatetime
SET @EndDate = '2014-03-23 …这是我的代码
var q = from a in bh
join b in hr on a.HotelCode equals b.hotelCode
select new
{
a.HotelCode,
a.ImageURL_Text,
a.HotelName,
a.StarRating,
a.HotelAddress,
a.Destination,
a.Country,
a.HotelInfo,
a.Latitude,
a.Longitude,
b.totalPrice,
b.totalPriceSpecified,
b.totalSalePrice,
b.totalSalePriceSpecified,
b.rooms
};
//rptHotels.DataSource = getres.availableHotels;
PagedDataSource objPds = new PagedDataSource();
objPds.DataSource = q;
objPds.AllowPaging = true;
objPds.PageSize = 10;// Convert.ToInt32(ddlPageNo.SelectedValue);
objPds.CurrentPageIndex = CurrentPage;
lblCurrentPage.Text = "Page: " + (CurrentPage + 1).ToString() + " of "
+ objPds.PageCount.ToString();
// Disable Prev or Next buttons if necessary
cmdPrev.Enabled = …我正面临一个问题,我想使用jQuery删除容器div的所有子元素边框.
子元素可以是图像,div,p标记或锚点或任何HTML标记.
这是我的尝试:
$(document).ready(function (){
$("#div1").children("div").css("border","0px solid red");
});
我在c#中使用以下代码,如下所示.
var result = (from o in db.tblOrderMasters
join od in db.tblOrderDetails on o.order_id equals od.orderdetails_orderId
join c in db.tblCountryMasters on o.order_dCountry equals c.country_id
join cu in db.tblCustomers on o.order_Custid equals cu.cust_id
where o.order_id == orderid && o.order_active == true && o.order_IsDeleted == false && (o.order_status == 2)
select new
{
Code = o.order_code,
Name = o.order_dFirstName + " " + o.order_dLastName,
Quantity = od.Quantity,
[...snip...]
}).ToList();
var Qresult = result;
try
{
foreach (var r in result)
{
if …我有一个像这样的字符串:
Error=0,0<br>Federal withhold=1.00<br>FICA=0.00<br>Medicare=0.00<br>Federal Supplemental withhold=0.00<br>State withhold=361.32<br>State Supplemental withhold=0.00<br>City withhold=0.00<br>City Supplemental withhold=0.00<br>City Resident withhold=0.00<br>City Resident Supplemental withhold=0.00<br>County withhold=0.00<br>County Supplemental withhold=0.00<br>School withhold=0.00<br>School Supplemental withhold=0.00<br>SDI withhold=0.00<br>SDI employer withhold=0.00<br>SUI employer withhold=0.00<br>Version=2013.01,1.02<br>No messages
从这个字符串我想提取State withhold其实际值361.32.
我有这个字符串在C#中的字符串,我曾尝试与IndexOf和Substring,但没能获得我如何能得到可贵有<br>特定的单词后State withhold.