我在使用过滤器构建查询时遇到问题。
我的表格结构是日志标题，其中驱动程序卡车和创建者表格相关，子表格日志详细信息
然后有一种方法可以获取这些相关数据，其中包含用于过滤日志标题日期的选项，以及基于相关表格（驱动程序或卡车）的过滤器。
现在，当用户仅在标题表上过滤数据时，数据已正确加载，但是当用户过滤相关的卡车或驱动程序时，我发现一个奇怪的错误，即sql无法找到列名。
所以我决定运行探查器并检测Ef正在发送的查询，我发现了一个有趣的结果，ef包括错误表格上的列！。
所以这是c＃代码
var h = db.LogHeader.AsQueryable();
if (OrderNumber == null)
{
if (fromDate != DateTime.MinValue) { h = h.Where(l => l.DateTime >= fromDate); }
if (toDate != DateTime.MinValue) { h = h.Where(l => l.DateTime <= toDate); }
if (LogID != null) { h = h.Where(l => l.LogHeaderID == LogID); }
if (Driver != "0") { h = h.Where(l => l.Driver.DriverID.ToString() == Driver); }
if (Truck != "0") { h = h.Where(l => l.Truck.TruckID.ToString() == Truck); }
if (Shipped != "") { h = h.Where(l => l.Shipped == Convert.ToBoolean(Shipped)); }
h = h.Take(rowCount ?? 25);
}
else
{
h = h.Where(d => d.LogDetails.Any(o => o.OrderNumber == OrderNumber));
}
var list = from lh in h
select new TruckHistoryViewModel
{
id = lh.LogHeaderID,
DateValue = lh.DateTime.ToString("M/d/yy"),
Time = lh.DateTime.ToString("h:mm tt"),
Driver = lh.Driver.FullName,
DriverID = lh.Driver.DriverID,
Truck = lh.Truck.TruckDescription,
Stops = lh.Stops,
DateAndTime = lh.DateTime,
LoaderName = lh.LoaderName,
Notes = lh.Notes,
CreatedBy = lh.CreatedBy.FullName,
Shipped = lh.Shipped == true ? "Yes" : "No",
OrderList = lh.LogDetails.Select(d => new LogDetailsViewModel
{
LogHeaderID = d.LogHeaderID ,
OrderNumber = d.OrderNumber,
StopNumber = d.StopNumber,
WorkComplete = d.Order.WorkComplete,
FollowUp = d.Order.FollowUp,
IsDouble = d.DubledOrderID != 0 ? true : false
})
};
sql查询Ef send＆＃39; s工作（不过滤相关数据时）是：
exec sp_executesql N'SELECT [lh.CreatedBy].[CreateByNameID], [lh.CreatedBy].[Creater], [lh.CreatedBy].[Disabled], [lh.CreatedBy].[FullName], [lh.CreatedBy].[Loader], [lh.CreatedBy].[Picker], [lh.Truck].[TruckID], [lh.Truck].[Disabled], [lh.Truck].[TruckDescription], [lh.Truck].[TruckNumber], [lh.Driver].[DriverID], [lh.Driver].[Disabled], [lh.Driver].[FirstName], [lh.Driver].[LastName], [lh.Driver].[Notes], [lh.Driver].[PhoneNumber], [t].[LogHeaderID], [t].[DateTime], [lh.Driver].[DriverID], [t].[Stops], [t].[LoaderName], [t].[Notes], CASE
WHEN [t].[Shipped] = 1
THEN N''Yes'' ELSE N''No''
END
FROM (
SELECT TOP(@__p_3) [l0].*
FROM [LogHeader] AS [l0]
WHERE (([l0].[DateTime] >= @__fromDate_0) AND ([l0].[DateTime] <= @__toDate_1)) AND ([l0].[Shipped] = @__ToBoolean_2)
) AS [t]
LEFT JOIN [CreatedByName] AS [lh.CreatedBy] ON [t].[CreatedByCreateByNameID] = [lh.CreatedBy].[CreateByNameID]
LEFT JOIN [Trucks] AS [lh.Truck] ON [t].[TruckID] = [lh.Truck].[TruckID]
LEFT JOIN [Drivers] AS [lh.Driver] ON [t].[DriverID] = [lh.Driver].[DriverID]
ORDER BY [t].[CreatedByCreateByNameID], [t].[TruckID], [t].[DriverID]',N'@__p_3 int,@__fromDate_0 datetime2(7),@__toDate_1 datetime2(7),@__ToBoolean_2 bit',@__p_3=30,@__fromDate_0='2017-08-15 00:00:00',@__toDate_1='2017-08-17 00:00:00',@__ToBoolean_2=0
但是当过滤相关表时，它会得到一个有趣的查询，其中包含一些不存在或存在于另一个表中的列名：
exec sp_executesql N'SELECT [l].[LogHeaderID], [l].[CreatedByCreateByNameID], [l].[CreatedDate], [l].[DateTime], [l].[DriverID], [l].[LoaderName], [l].[Notes], [l].[Shipped], [l].[Stops], [l].[TruckID], [l.Truck].[TruckID], [l.Truck].[Disabled], [l.Truck].[TruckDescription], [l.Truck].[TruckNumber], [l.Truck].[CreatedByCreateByNameID], [l.Truck].[DriverID], [l.Truck].[LogHeaderID], [l.Truck].[DateTime], [l.Truck].[Stops], [l.Truck].[LoaderName], [l.Truck].[Notes], [l.Truck].[Shipped]
FROM [LogHeader] AS [l]
LEFT JOIN [Trucks] AS [l.Truck] ON [l].[TruckID] = [l.Truck].[TruckID]
WHERE (([l].[DateTime] >= @__fromDate_0) AND ([l].[DateTime] <= @__toDate_1)) AND ([l].[Shipped] = @__ToBoolean_3)
ORDER BY [l].[TruckID]',N'@__fromDate_0 datetime2(7),@__toDate_1 datetime2(7),@__ToBoolean_3 bit',@__fromDate_0='2017-08-15 00:00:00',@__toDate_1='2017-08-17 00:00:00',@__ToBoolean_3=0
在ssms中返回错误：
Msg 207, Level 16, State 1, Line 1
Invalid column name 'CreatedByCreateByNameID'.
Msg 207, Level 16, State 1, Line 1
Invalid column name 'DriverID'.
Msg 207, Level 16, State 1, Line 1
Invalid column name 'LogHeaderID'.
Msg 207, Level 16, State 1, Line 1
Invalid column name 'DateTime'.
Msg 207, Level 16, State 1, Line 1
Invalid column name 'Stops'.
Msg 207, Level 16, State 1, Line 1
Invalid column name 'LoaderName'.
Msg 207, Level 16, State 1, Line 1
Invalid column name 'Notes'.
Msg 207, Level 16, State 1, Line 1
Invalid column name 'Shipped'.
为清楚起见，我将添加db上下文类
protected override void OnModelCreating(ModelBuilder builder)
{
base.OnModelCreating(builder);
builder.Entity<LogHeader>().HasOne(t => t.Truck).WithMany(l => l.TruckLogs);
builder.Entity<LogHeader>().HasOne(t => t.Driver).WithMany(l => l.DriverLogs);
builder.Entity<LogHeader>().HasOne(t => t.CreatedBy).WithMany(l => l.LogHeaders);
builder.Entity<LogDetails>().HasOne(o => o.Order).WithMany(o => o.LogDetails);
builder.Entity<Order>().HasOne(o => o.Category).WithMany(c => c.Orders).HasForeignKey(c => c.CatagoryID);
builder.Entity<CreatedBy>().ToTable("CreatedByName");
}
public DbSet<LogHeader> LogHeader { get; set;}
public DbSet<LogDetails> LogDetails { get; set; }
public DbSet<Truck> Trucks { get; set; }
public DbSet<Driver> Drivers { get; set; }
public DbSet<ApplicationUser> ApplicationUser { get; internal set; }
public DbSet<Order> Order { get; set; }
public DbSet<CreatedBy> Creaters { get; set; }
public DbSet<Category> Categories { get; set; }
我的代码有什么问题吗？ （或者不太可能是ef中的错误）
注意：我对EF很新，所以如果对代码有任何建议，我将非常感激。