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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How far should an entity take care of its properties values by itself? [migrated]
Let's consider the following example of a class, which is an entity that I'm using through Entity Framework.
- InvoiceHeader
- BilledAmount (property, decimal)
- PaidAmount (property, ...
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votes
2answers
160 views
How to reduce my code length without changing concept?
There are three servers. I want to assign a job to a server which has least NotStarted jobs. I have achieved this, but my code is very lengthy. I don't know how to minimize my code without changing my ...
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votes
0answers
103 views
Multiple repository calls or LINQ query
These two methods do the exact same thing (or at least they are supposed to!). They both pass a simple test based on a mock context. Neither has been exposed to any integrated testing yet.
Would ...
4
votes
2answers
126 views
Threadsafe DBContext in singleton
I found out the hardway that access to DbContext in .NET is not threadsafe. I have a singleton for logging things using a dbcontext. The original version uses something like
public Logger{
private ...
3
votes
1answer
502 views
Generic repository and unit of work code
I am writing a WPF application that needs to access information from a database (I am currently using Entity Framework code first, so data access is via DbContext).
My ViewModels directly ...
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votes
1answer
81 views
Is it proper TPT Inheritance
I have following model and database created using Entity Framework. Is it proper TPT Inheritance?
Is it possible to make the base class as abstract?
Model
Database
CODE
namespace LijosEF
{
...
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2answers
293 views
Many to many crud using entity framework 4.1
My view submits data to the controller using Json objects which contains child objects.It allows users to add/remove/modify the relationship with child entities(authors,categories,LIbraryBookCopy). ...
1
vote
0answers
217 views
Linq-to-entities query too slow
I am fairly new to Entity Framework and I am not sure I am really using it to it's max potential. I have this query, that IMHO seems to take a little longer than I feel it should. I have tried ...
2
votes
1answer
274 views
Your Thoughts: Entity Framework Data Context via a DataHelper class (centralized context and transactions)
I want to get opinions on the code I have put together for a centralized DataContext via a DataHelper class that I have created to be re-used on projects.
NOTE - there is a ton of code here, sorry ...
2
votes
1answer
229 views
IAuditable and IArchivable Repository with Repository Pattern and UnitOfWork
I am quite new to ASP.net and am currently trying to implement my data access layers of my application. I have so far implemented a generic repository pattern as follows:
using System;
using ...
1
vote
1answer
95 views
How could I remove repetition from this linq-to-entities query?
This linq query works, and it does what I want it to do, but is there any other way I could improve the query so I'm not repeating a.AnswerRevisions.OrderByDescending(r => ...
5
votes
1answer
172 views
LINQ Compare Query Improvements?
I'm attempting to create a compare table to compare products depending on the add-ons they have. To grab the data and filter it I'm using LINQ To SQL.
Table's Layout (Cut short):
Products Table
ID
...
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0answers
103 views
Is my MergeUtility good enough to create an open source project out of?
Here is a utility that supports ETL/merging in EntityFramework.
If it's not appealing as a general purpose tool, why?
If it is appealing as a general purpose tool, how might the design be made ...
2
votes
1answer
140 views
Clever way to build a extension method that ordenate my IQueryable<T>?
I want to create a ExtensionMethod to ordenate my linq query, called Ordenar. I'll sort it depending what columns is in sortColumns ListDictionary.
I tried some ways, but the best way I arquieve was ...
2
votes
2answers
130 views
Can someone tell me if I'm barking up the wrong tree with this ASP.Net MVC/Entity Framework pattern?
So I have experience is C#/ASP.Net, and I've done MVC in Ruby On Rails, so I figured making the jump to ASP.Net MVC would be a breeze. Unfortunately, I'm second guessing my every descision. I'd like ...
