The ADO.NET Entity Framework is a set of ORM (Object-Relational-Mapping) tools for the .NET Framework, since version 3.5 SP1.

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2
votes
2answers
101 views

Take a result set and organize it into a dictionary

I'm trying to take a result set and organize it into a dictionary then assign the dictionary values to variables that are publicly accessible from my controller. My issue is I have to check if there ...
1
vote
1answer
17 views

Mapping discussion entries from an SQL-View to objects

In my ASPNET MVC application, I am loading Discussion Entry records along with User info (who posted the entry), Badges (assigned to the entry), Reactions (made to the entry like facebook-style ...
3
votes
2answers
144 views

Sales order domain model with Entity Framework

I am wondering whether the following inheritance pattern is a good idea. I noticed that Sales Orders, Sales Quotes and Sales Invoices all follow a similar Master/ Detail pattern ( i.e a Header with ...
3
votes
1answer
70 views

Cloning Entity Framework entities

I'm currently writting piece of logic which copies entities from one user account to another. My current strategy in doing this is like that: Consider the following code: ...
0
votes
1answer
54 views

UnitOfWork without repository and transaction

I've created the unitofwork class below: ...
0
votes
1answer
63 views

Web API with IoC and database integration tests [closed]

I've made integration tests for a major part of my application. I test my dependency injection is set up correctly, creating controllers with it's dependencies going all the way to the database (using ...
2
votes
1answer
51 views

API controller with database queries

I have the following controller with a couple of database queries and I'd like you to review it. I've tried to make it clean for other developers but the communication with the database can be ...
2
votes
0answers
42 views

First time using entity framework with simple repository

I'm working on updating a GitHub project that I use at work, but I think the person abandoned the project as there is a pull request for it since 2014. At work we use a Repository pattern with ...
0
votes
1answer
67 views

Data layer using extension methods

I've started to use extension methods to provide data layer functionality in our project. Our project is an MVC website using Code First Entity Framework. So, I've done things like this: ...
0
votes
1answer
29 views

Passing model to _layout.cshtml

I have login page that looks like: It has a ViewModelBase and a ViewModel as: ...
2
votes
1answer
63 views

Repository pattern for books in EF6

I am working on a generic repository. And I wondered if anyone could give some feedback on it. Interface for DbContext: ...
1
vote
2answers
66 views

Inserting a (IoT) device into a database

In Service.Insert(), I call DeviceRepo.Insert() and in Service.Update(), I call ...
2
votes
1answer
105 views

Repository Pattern universal application

When I started learning Repository Pattern with Unity few days ago I was under impression that the main benefit of this pattern is the separation of data layer from the business layer. In other ...
0
votes
1answer
49 views

Using EF 6.1 for updating objects and their children

I have an application that allows a user to create a poll that includes questions and answer choices as part of the poll. The hierarchy is a poll has one or more questions, a question has one or more ...
1
vote
1answer
67 views

Web-service for wiki-like movie database

I'm making a web-service for an app with a (partially) crowdsourced movie database. These two functions allows users to add and remove which genres a movie is liked to, and get the log of whom have ...
2
votes
1answer
43 views

Building a simple REST service using Web API 1.0

Friends, It's been several years since I last worked with the ASP.NET Web API framework. Even then I had developed with it minimally. I have a requirement for a service that will allow for the ...
3
votes
1answer
57 views

Building expression tree with multiple OrElse

I am creating a way for users to filter results based on start and end values. An example of this would be: ...
2
votes
1answer
39 views

Edit one table from another table in a Windows Form DataGridView

I have a Sales Order Program that allows each customer to have their own Part Number for one of our Stock Items. The Customer Part Numbers are stored in a separate table. I need to make this as low ...
1
vote
1answer
77 views

Domain Model for Simple Yes/No

Working from a C# and EntityFramework background. Jimmy Bogard makes the point of modelling your domain model correctly, such ...
2
votes
1answer
65 views

Optimize OrderBy Generic Method

Here is my OrderBy method which includes concatenated column names. Can this be achieved more efficiently? ...
1
vote
1answer
114 views

DAL basic implementation using Entity framework 6 and Autofac

Would like to ask for a code review for my DAL. I use Entity framework 6 and Autofac for ...
-1
votes
1answer
39 views

LINQ to SQL code - in models project or in db project

I currently have two projects. One called Models, a second called TaskEntityModels, a model first ...
5
votes
1answer
80 views

Paginating blog posts from SQL server using nested LINQ statements

I made an ASP.NET MVC application using Entity Framework for code-first migrations to the SQL Server database. I also use Unity (DI/IoC) for managing the services and repositories. I made an overview ...
0
votes
1answer
97 views

Method or helper function to return objects from EntityFramework with Linq [closed]

The following code reads from Microsoft EntityFramework 6.0 domain model and returns the single view_patient object. The view_patient object is defined in the backend database and uploaded to the ...
2
votes
1answer
72 views

Return most recent DateTime C# Entity Framework

Job -> Many Quotes Quote -> EmailLogList EmailLogList -> Many EmailLogs I want to return a CreatedDate from an EmailLog which has been created most ...
0
votes
1answer
63 views

Entity Database Add/Update method

What would be the most elegant way to refactor the following method? ...
1
vote
1answer
42 views

Eager Loading Deeply into a Model with a Collection Property Whose Type is Inherited

Visual Studio generated this great route for me, where I can load an entity: ...
0
votes
0answers
33 views

Get a list of inherited classes using Linq to Entities

I have inherited classes in Entity Framework. I have a base class (ArticleBase) and two classes Review and Article which inherit from it. I am returning a list of the latest Articles and Reviews ...
1
vote
2answers
89 views

Entity framework - code first data access

I'm looking for your opinions about ways to improve the access to data in my application. I develop web applications, using Entity Framework 6 code first, and Autofac for dependency injection. Before ...
2
votes
2answers
90 views

Medical appointment book history

This code correctly returns a View_appointment. Is there a better way to accomplish this with using left joins and unions? I'm trying to learn Linq a little bit ...
4
votes
1answer
62 views

EF IQueryable Extension Methods

I've started building extension methods for my EF classes like below because it makes building queries so easy, and the intellisense provided helps keep people from writing a new Where() clause in ...
2
votes
1answer
93 views

Custom data validation approach for store items and prices

I came up with a validation design for my project and wanted to hear if there's anything I could improve. Here's how it works. I have the models (code first) ...
-1
votes
1answer
47 views

EF Code First BaseContext-class [closed]

I've seen a tutorial where a dbcontext base class is created like so: ...
3
votes
1answer
117 views

Utilizing Areas to handle subdomains with shared state/resources

I am currently working on a side-project and have the basic foundation and architecture I want in place for the site. I wanted to get your opinion and thoughts on my current practices and methods ...
4
votes
1answer
90 views

Joining tables with EF

Here is my database: Here is my viewModel: ...
8
votes
2answers
94 views

Code First approach, feeding the table

I have a database (PostgreSQL) from which I want to migrate some data to a MS SQL Server database. I decided to use a code first approach. The question is related to the proper way of feeding my new ...
5
votes
2answers
161 views

Query Builder pattern with use of FluentApi

Recently, I've come up with an idea of building a custom query builder combine with FluentApi. Expected usage: ...
3
votes
1answer
62 views

Entity Framework Code First Softball Stats Database Schema

I am creating a website for my buddies and I to track all of our offensive softball stats. I am getting tired of maintaining a huge excel spreadsheet and emailing it out every week, so a website is ...
3
votes
2answers
130 views

Keeping data processing out of controllers

I would like to start by mentioning that I am LAMP stack guy who happens to be making my first ever .NET C# web app and I'm seeking general advises for best practices and to see how more experienced ...
1
vote
2answers
72 views

A polling method and nested loop

There are 12 gates. Using our face recognition system, we check every person who tries to enter each gates. My MVC web application is to show the result data to the gate-keeper. And this is the ...
2
votes
1answer
154 views

DbGeography search query

I have a situation in which I need to get the closest road to a DbGeography point. This takes 5 - 8 seconds to run in some cases. I have a ...
2
votes
2answers
256 views

Linq-to-Sql Contains an int? inside a list of int

Curious if there is a better way to write a repository method that receives argument List<int> and checks if the database ...
2
votes
2answers
66 views

Sales Tax problem (new version)

I was told that this version is too simple, that need something more complex. I added Entity Framework. Here my code: ...
3
votes
2answers
68 views

View Model Constructor Arguments

I have created a ViewModel for a Product Edit page because it has specific related entities I need to load - the class currently looks like this: ...
1
vote
1answer
847 views

Entity Framework 7 In Memory Database - Unit Testing using xUnit

I'm using EF7 with In-Memory database and xUnit for repository testing. I'd like to know if it's a good practice initializing the database in this manner for reuse it in every test method, ...
0
votes
2answers
64 views

Saving or updating to databse

What would be the best way to refactor following method? ...
3
votes
0answers
104 views

Unit of work with Repository pattern

I am trying to work on a WPF application and decided to go for Unit of Work and Repository pattern, along with MVVM. I am using Entity Framework as my ORM. Could ...
0
votes
0answers
73 views

Unit of Work by using Windsor Castle

I want to implement Unit of Work patter with the usage of Windsor Castle in order to controll the trasanctions and sessions. What I did till now is: My business class methods: ...
3
votes
1answer
56 views

Extracting SoftDelete from DbContext

I have a DbContext with a SoftDelete implementation inside it. To make it more clear and maintainable, I wanted to extract it to ...
3
votes
3answers
714 views

Master detail INSERT in Entity Framework 6 Database First MVC 5

I have a DB with a master table called "facturas" and another detail table "facturas_detalle." I would like to insert to them, so this is a "Database-First". I need some guidance or advise of best ...