WebDbSet 可用來查詢和儲存 的 TEntity 實例。 針對 的 LINQ 查詢 DbSet 將會轉譯為對資料庫的查詢。 屬性 方法 明確介面實作 擴充方法 適用於 意見反應 提交並檢視相關的意見反應 本產品 本頁 檢視所有頁面意見反應 WebDbContext context = new MyContext (); DbSet dbSet = context.Set (); It is the generic version of something more explicit, such as DbContext context = new MyContext (); DbSet dbSet = context.Set (); Either way, they are the same (when T is User) Share Improve this answer Follow answered Dec 4, 2012 at 20:08 Travis J
DbSet in Entity Framework with Examples - Dot Net Tutorials
WebDbSet item = DbContext.Set; so actually your code would be the same as this: DbSet nonGeneric = context.Set (); and to get a IUser DbSet nonGeneric = context.Set (); or maybe var generic = nonGeneric.Cast> (); Share Improve this answer Follow answered Oct … WebAug 14, 2024 · Then, you can issue arbitrary queries using FromSql on that. With DbSet, the query must be composable, which means it can only be a standard select, it must correspond to a real table, and must include all properties on the entity - none of which apply to the query you're trying to perform. Share Improve this answer Follow millers lawn service de
SQL Queries - EF Core Microsoft Learn
WebComentários. Os resultados de uma consulta LINQ em relação a um DbSet conterão os resultados retornados do banco de dados e podem não refletir alterações feitas no contexto que não foram persistentes no banco de dados. Por exemplo, os resultados não conterão entidades recém-adicionadas e ainda poderão conter entidades marcadas para … Add OrUpdate (IDb Set, Expression>, TEntity []) Adds or updates entities by a custom identification expression when SaveChanges is called. Equivalent to an "upsert" operation from database terminology. This method can useful when seeding data using … See more Note that DbSet does not support MEST (Multiple Entity Sets per Type) meaning that there is always a one-to-one correlation between a type and a set. See more WebKullanılan veritabanına bağlı olarak, bir LINQ sorgusunun bazı bölümleri veritabanı DbSet sorgusuna çevrilmesi yerine bellekte değerlendirilebilir. DbSet nesneleri genellikle türetilmiş DbContext veya yöntemindeki bir DbSet özellikten Set () elde edilir. millers loft aspects