c# - 我如何将参数添加到 Entity Framework 原始 sql 命令

Question

如何向以下 Entity Framework 原始 SQL 命令添加参数？例如，如果我想让 Id 成为参数怎么办？

        using (var context = new NorthwindDBEntities())
        {
            context.Database.ExecuteSqlCommand(@"
                UPDATE dbo.Customers 
                SET Name = 'Test' WHERE Id = 1
            ");

        }

Answer 1

context.Database.ExecuteSqlCommand(@"UPDATE dbo.Customers 
            SET Name = 'Test' WHERE Id = @Id", new SqlParameter("Id", 1));

如果有多个参数

context.Database.ExecuteSqlCommand(@"UPDATE dbo.Customers 
            SET Name = 'Test' WHERE Id = @id and Name =@name", 
               new SqlParameter("Id", id),
               new SqlParameter("name", fname));