书接上回,【源码解读(一)】EFCORE源码解读之创建DBContext查询拦截,在上一篇文章中,主要讲了DBContext的构造函数,以及如何缓存查询方法提升查询性能,还有最重要的拦截查询,托管IOC到web程序,在上一文章中,最后关于DBContext的构造函数的内容没有讲完,在本章中我会讲以下几部分,会将上篇没有讲完的部分讲完,会讲关...
基於這個理由,EF Core 6.0 現在會在儲存選擇性相依專案時發出警告,其中所有屬性都是 Null。 例如:warn: 9/27/2021 09:25:01.338 RelationalEventId.OptionalDependentWithAllNullPropertiesWarning[20704] (Microsoft.EntityFrameworkCore.Update) 類型為 'Address' 的實體,其主鍵值 {CustomerId: -2147482646} 是選擇...
This technique bypasses the cache lookup, and provides the most optimized way to execute a query in EF Core. Following are some benchmark results comparing compiled and non-compiled query performance; benchmark on your platform before making any decisions. The source code is available here, feel...
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File a bug EF CORE 7.0.9 Remember: Please check that the documentation does not explain the behavior you are seeing. Please search in both open and closed issues to check that your bug has not already been filed. Include your code 表结构===...
<loc>https://answers.microsoft.com/en-us/windows/forum/all/rdpcoredll-is-missing-from-your-computer/351ce3e7-0041-4176-8362-17225c92c753</loc> <lastmod>2018-03-13T16:57:17.0000000Z</lastmod> </url> <url> <loc>https://answers.microsoft.com/fi-fi/windows/forum/all/vistan-tietoturvake...
这里面最核心的一个方法就是GetPartStockWithPrice这个,这个部分是通过ABP中集成的Dapper来实现的,这个里面调用了一个重要的子函数QueryPartStock,这个函数主要是将前端传入查询条件的参数转换成后端对应的EFCore代码,这里我也贴出具体点的代码。 1 2 3 4
EF Core自带的全局过滤查询功能 EF Core提供了一个HasQueryFilter供我们在查询的时候进行预置部分筛选条件 例如: builder.HasQueryFilter(x => !x.IsDelete); 这样查询的时候 EF Core 会自动帮我们实现过滤 然后如果不想使用的时候可以全部忽略 DbSet.IgnoreQueryFilters(); ...
STATUS_WRONG_PASSWORD_CORE {Incorrect Password to LAN Manager Server} You specified an incorrect password to a LAN Manager 2.x or MS-NET server. 0xC000014A STATUS_ILLEGAL_FLOAT_CONTEXT {EXCEPTION} A real-mode application issued a floating-point instruction and floating-point hardware is not pre...
链接:asp.net core3.1 实战开发(EF+Mysql 从数据库生成实体类到项目) 封装仓储模式 IRepositorys接口 using System.Data; using System.Data.Common; using System.Linq; using System.Linq.Expressions; using System.Threading.Tasks; namespace Snblog.IRepository.IRepository ...