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Entity Framework

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Great Reads

Entity Framework: Storing Complex Properties as JSON Text in Database

by Jovan Popovic(MSFT)

Mapping properties in EF model to database columns that contain JSON

Entity Framework Fundamentals

by Kenji Elzerman

Fundamentals of Entity Framework

Learning Entity Framework (Day 4): Understanding Entity Framework Core and Code First Migrations in EF Core

by Akhil Mittal

Entity framework core, code first migrations and data annotations in EF Core

CRUD Many-to-Many Entity Framework

by Jean Carlo S. Passos

CRUD over Association Entity that maps to association tables

Latest Articles

.NET 8 — Transactional Outbox Pattern With EF Core

by GabrieleTronchin

In this project, I've implemented the Transactional Outbox Pattern using EF Core.

How to Easily Map EntityFramework/EntityFrameworkCore Entities from/to DTOs

by David_Cui

To introduce a free library to save some tedious work for writing mapping code between entities and DTOs

VS2022, ver. 17.6.2 – EntityFramework6 Broken

by Mark Pelf

Fix for adding new DB tables does not work in VS 2022, ver. 17.6.2, EF6 (Classic)

Entity Framework 7 – Code First – Using CLI

by Mark Pelf

Tutorial on EF7 – Code First approach using Command Line (CLI)

All Articles

Entity Framework

"Merging" list operations with database

31 Aug 2010 by helianthus87

Here's the scenario.After page loaded user is getting List of his for example Phones. He can modify, delete, add some records without databse interaction during this process. After this he can click "Save" button to populate all changes to database.My problem is:At the end of user's...

entity-framework

"Merging" list operations with database

1 Sep 2010 by Gordon Kushner

My technique is to pass in all the ids to the stored procedure. You can do this with XML.Using the XML data type, you can DELETE the ids in dbPhones that are NOT IN the ids for userPhones, UPDATE the matching records and INSERT the new ones in one procedure call.Here is a SQL Server 2005...

entity-framework

"Triggering" a Method in C#/ASP.NET on a certain Condition to modify the Database

12 Sep 2011 by foxrox_1

Hello.I have a question about firing an event or call a method in a certain condition (eg if(datetime1 > datetime2) )Basically I need to send birthday emails to someone registered on my website at his/her birthday at Midnight.Then, each hour, I need to send a PM to me containing an...

entity-framework

"Triggering" a Method in C#/ASP.NET on a certain Condition to modify the Database

12 Sep 2011 by Herman<T>.Instance

if (DateTime.Now > Midnight) counts for a complete day!Better create a service that runs on midnight once for the birthday emails and hourly for the PM

entity-framework

"Triggering" a Method in C#/ASP.NET on a certain Condition to modify the Database

13 Sep 2011 by BobJanova

There's basically two options here.Best is if you either own the server or are permitted to run a service or cron job (sorry, scheduled process ;) ) on it. Set the service up to check once an hour for anyone whose birthday tripped in the last hour, and send you a PM (i.e. write to a database...

entity-framework

"Triggering" a Method in C#/ASP.NET on a certain Condition to modify the Database

13 Sep 2011 by AditSheth

Create a job that will execute at MidNight. Step To Create JobNow in Job Find users which has birthday today and send email. To send email use Database Email Here you find step to send email

entity-framework

'Unable to load the specified metadata resource.'

14 Aug 2018 by Niranjan Vinay

If the pass the registered email id and password to login it's showing the error. There is Exception thrown in entityframework.dll and Repository.dll What I have tried: I have tried deleting .vs folder. Tried cleaning the source and rebuild it.

entity-framework

.NET 8 — Transactional Outbox Pattern With EF Core

U 16 Apr 2024 by GabrieleTronchin

In this project, I've implemented the Transactional Outbox Pattern using EF Core.

entity-framework

.net core 2.0 hybrid ORM (dapper and entity framework core 2.0)

30 Apr 2018 by M.Kamran Asim

Dear Friends, I have started my new project in .Net core 2.0. Recently I did some research for best suited ORM, which is fast and easy to use. I found Dapper as a king of ORM, but it has many limitation. To overcome these limitation I found solution to use hybrid approach by combining Entity...

entity-framework

.NET Core, PostgreSQL and Document Database

18 Oct 2020 by JawadHasan

Use NoSQL database functionality from within a Relational database system

entity-framework

.NET Web Site/Application Customize Entity Framework with My User db Insted of dbo (visual studio 2012 .net 4/4.5)

27 Dec 2014 by Thebusker

Hello to all,my Hosting Provider don't allow to use the default user called "dbo" (on mssql 2008 server).I'm using the standard Membership in Visual Studio Express 2012 (or VS2010) for Registration and Login pages, but the Entity Framework/Membership .dll creates tables and vistas by "dbo"...

entity-framework

SQL-Server-2008R2

1 : 1 Relationship in Entity Framework

28 Sep 2011 by Member 4550493

Hi,I am working on Entity Framework 4.1. I have created sample application in which i have three Entitees 1] Order EntityOrderNumberOrderDateStatusCustomerId2] OrderItem EntityOrderItemNoQuantityPriceOrderNumber3] Shipping...

entity-framework

1 : 1 Relationship in Entity Framework

28 Sep 2011 by Simon Bang Terkildsen

First of all, don't just tell us you recieve an exception, if you do not post the exact exception then you might aswell just don't mention it at all.That said in a 1 to 1 relation the EF expects that the two tables use the same primary key, which they also should.So making OrderNumber the...

entity-framework

10 Points to Secure Your ASP.NET Core MVC Applications

5 Sep 2018 by Saineshwar Bageri

How to secure ASP.NET Core MVC Applications against top 10 attacks

entity-framework

15.2 What's New for XAF

29 Nov 2015 by Michael Bogaerts

What brings the 15.2 release for XAF (win) developers

entity-framework

3 tier with entity framework

24 Oct 2015 by Sergey Alexandrovich Kryukov

You are mixing up layered architectures with multi-tier architecture. The are different things. You need to learn about each of them separately.—SA

entity-framework

3 Ways To Refactor EF Linq Queries w/o Killing Perf

7 Sep 2019 by Lee P Richardson

This blog post lists 3 days to refactor EF Linq queries without killing Perf

entity-framework

[C#] communicate between a winforms application users

30 Nov 2019 by Taher El Marengoze

I am trying to develop a WinForms application, the application is a procurement system where employees at different locations (SITE) send purchase requests containing transactions that must be carried out by the procurement employee(HO). I am using c# and Entity Framework 6 (Database-First...

entity-framework

[C#] communicate between a winforms application users

27 Nov 2019 by johannesnestler

Why do you think SQLDependency won't work with EF? (I didn't check for EF 6 but this worked for me back then: SqlDependency with Entity Framework 5.0[^]

entity-framework

[C#] communicate between a winforms application users

30 Nov 2019 by Taher El Marengoze

Well I tried SQL Dependency using Entity Framework in WPF[^] and it worked like charms. But I don't know if it has any limitation or not, I guess time will tell. Anyways, thanks everyone for your answers.

entity-framework

[HttpPost] Partial view returns null

24 Mar 2014 by Alem.B

Hi!I have some difficult time to pass data to Partial view httpPost ActionResult method in Controller.Let me explain:1.Have entity which i have been generated with Entity Framework ORM and this looks like this.

entity-framework

[HttpPost] Partial view returns null

31 Mar 2014 by Guruprasad.K.Basavaraju

In your view change the IEnumerable to List, that solved a similar issue I had.@model ListIEnumerables are readonly.

entity-framework

[Not a question] I need a good and professional sample solution developed based on MVC and Entity Framework(Database First)

4 Feb 2014 by Bahram Ettehadieh

I need a good and professional sample solution developed based on MVC and Entity Framework(Database First) any suggestions?

entity-framework

[Not a question] I need a good and professional sample solution developed based on MVC and Entity Framework(Database First)

4 Feb 2014 by _Maxxx_

http://msdn.microsoft.com/en-us/data/gg685489.aspx[^]

entity-framework

[Not a question] I need a good and professional sample solution developed based on MVC and Entity Framework(Database First)

4 Feb 2014 by Tadit Dash (ତଡିତ୍ କୁମାର ଦାଶ)

Refer Sergey's comment. This usually don't work this way in Code Project.You have to come with a specific issue.Still I would give you some article links, which might be useful for you to get started. Just go through them.1. EF Database First with ASP.NET MVC: Setting up the Database[^]....

entity-framework

[Not a question] I need a good and professional sample solution developed based on MVC and Entity Framework(Database First)

4 Feb 2014 by JoCodes

Additional Referenceshttp://www.c-sharpcorner.com/UploadFile/abhikumarvatsa/database-first-approach-in-entity-framework/[^]http://nerddinner.codeplex.com/[^]http://csharppulse.blogspot.in/2013/08/learning-mvc-part-3-creating-mvc.html[^] Learning MVC - Part 5 Repository Pattern in...

entity-framework

[Solved] Connecting to SQLite via entity framework at runtime trouble

16 Apr 2011 by DannyStaten

I am using Entity framework for my project with sqlite as the database. I need to let the user choose their file at run time, and I would think that I have it all squared away. However when I construct my EF entities object it throws an exception and I can't figure out what I am...

entity-framework

[Solved] Connecting to SQLite via entity framework at runtime trouble

16 Apr 2011 by DannyStaten

Ok I found my problem. I coppied my connection string straight from an app.config. The culprit was the " in the two places it was showing up. Changing it to 'data source={0}' solved the issue.

entity-framework

[Solved] Connecting to SQLite via entity framework at runtime trouble

19 Sep 2015 by Member 11594357

can you please write the final connection string needed?im in the same problem..

entity-framework

[SOLVED] How to optimize code for automatic Mapping?

4 Oct 2011 by Sunasara Imdadhusen

HiAll,I would like to use something like AutoMapper for the following code instead of manual mapping.I have two tables User and Role and both mapped with RoleID. now problem is if i am getting records from Users then it will gives me only RoleID instead of RoleName. So i tried to get...

entity-framework

[SOLVED] How to optimize code for automatic Mapping?

4 Oct 2011 by Sunasara Imdadhusen

I have SOLVED this question using following solution:public IList GetUsersWithRole() { IList users = _UserRepository.GetAll(); IList userswithrol = new List(); AutoMapper.Mapper.CreateMap

entity-framework

[Solved] In save attachment function it is giving object refernce not set to instance of object ?

23 May 2014 by Neha Mukesh

protected void SaveAttachments(Int32 actRuleID) { if (gvAttachments.Rows.Count > 0) { if ((Session["FileDetail"].ToString() != "")) { string[] Records = Session["FileDetail"].ToString().Split('#'); byte[]...

entity-framework

[Solved] In save attachment function it is giving object refernce not set to instance of object ?

21 May 2014 by Raul Iloc

1.This error occurs because you are trying to access the property/method of a null object. 2.You should Debug your code and inspect in your code that generate the exception the values of the used variables, and one of it should be null.PS: Normally when you read something from Session...

entity-framework

[Solved] In save attachment function it is giving object refernce not set to instance of object ?

21 May 2014 by Karen Mitchelle

Additional to the Solution 1, kindly check for the variables. Maybe they don't generate a value that's why you're getting an exception.If you are using Visual Studio, use breakpoint so that you can see in what specific line you are having problems with.

entity-framework

[Solved] Nested Select in EntityDataSource.CommandText

29 Jan 2011 by [DK]KiloDunse

Hi.When I use this select in a entitydatasource.CommandText:CommandText="SELECT it.[LiteratureID], it.[ReleaseDate], it.[Title], it.[Text], it.[ThreadID], it.[Added], (SELECT COUNT(fp.PostID) FROM ForumPosts AS fp WHERE fp.ThreadID = it.[ThreadID] AND fp.Status = 1) AS Posts FROM...

entity-framework

[Solved] Nested Select in EntityDataSource.CommandText

29 Jan 2011 by [DK]KiloDunse

Found a solution.Adding VALUE to the nested SELECT returned a list of Int32 insted.Binding like this, returned the value:Comments=''

entity-framework

[Solved] Nested Select in EntityDataSource.CommandText

8 Feb 2011 by njs2002

Thank you. This was a HUGE help!

entity-framework

[Solved] Nested Select in EntityDataSource.CommandText

2 May 2011 by Sachin Kumar, IGate

Thanks very much. It is really a very appeciatable help. I used in query like in aspx page : DefaultContainerName="DBEntities" EnableFlattening="False" EntitySetName="Logs" ...

entity-framework

[TinyERP: SPA for Enterprise Application]Manage Staffs - Part 2

27 Dec 2018 by tranthanhtu.vn

[TinyERP: SPA for Enterprise Application]Manage Staffs - Part 2

entity-framework

A Beginner's Tutorial for Understanding and Implementing Relationships using Entity Framework

3 Feb 2013 by Rahul Rajat Singh

In this article we will try to see how we can model tables having one to many and many to many relationships using Entity Framework.

entity-framework

A Beginner's Tutorial on Performing Validations in Entity Framework using Partial Methods

6 Oct 2012 by Rahul Rajat Singh

This article talks about performing validations while using Entity framework. We will see how the Entities facilitate validations using partial methods.

entity-framework

A Beginners Guide for LINQ with C#

17 Dec 2022 by Kenji Elzerman

Let's take a look at the very fundamentals of LINQ and how to use it.

entity-framework

A Bug Fix That Has Least Impact On Existing and Future Codes

15 Nov 2016 by scott_liu

Sometimes, a bug fix cannot meet the challenges by a regression test. So thinking twice for a better solution is worthwhile for troubleshooting and bug fixes.

entity-framework

A circular reference was detected while serializing an object of type

9 Sep 2013 by Anele Ngqandu

Hi guysI get this error and not sure what to do, please help.Error:"A circular reference was detected while serializing an object of type "var context = HttpContext.Current; int rowCount = -1; var property = db_Property.getEveryProperty(0, 10, "", ref...

entity-framework

A design for entity framework?

21 Apr 2014 by Jeff Moeller

Could this design solution be solved by Entity Framework?An app named "car parts" v1.0 has one user and incorporates a relational database with strongly typed columns for each of the 10 car parts that applies to the user's vehicle data.The data is very searchable since it is in an...

entity-framework

A design for entity framework?

21 Apr 2014 by Jeff Moeller

Thanks you Sergey, it turns out that my question is about hybrid EAV patterns with SQL Server on which I'd appreciate any further input.

entity-framework

A Dynamic Where Implementation for Entity Framework

2 Apr 2023 by Marc Clifton

Using EntityFramework Core and SQL Server to create a dynamic IQueryable filtering that is not susceptible to SQL injection attacks

entity-framework

A field alone does not updating in one entity

15 Feb 2012 by msk kumar

Hi all,i am using entity framework to access the Db in my projecthere i want to update two entity(table) by clicking a update buttonDim xx As entityname = objContext.entityname.Where(Function(c) c.Rowid = intRowId And c.Type = intType).SingleOrDefaultIf (true) ThenIf Not...

entity-framework

A field alone does not updating in one entity

16 Feb 2012 by Not Active

If you want to update the entire object graph then ApplyCurrentValues is not necessary. http://msdn.microsoft.com/en-us/library/dd487246.aspx[^] "The ApplyCurrentValues(Of TEntity) method is used to apply changes that were made to objects outside the ObjectContext, such as detached objects...

entity-framework

A fuel products prices management system in .NET

8 Oct 2017 by David2509

hello i have to developpe a fuel products prices management system there are several prices with its formula that i have implemented and i have to calculate all this prices and store theme in database -price for domestic customers -prices for foreign customers -price for foreign regular...

entity-framework

A fuel products prices management system in .NET

8 Oct 2017 by F-ES Sitecore

1 There is rarely a "best" technology, but asp.net and mvc are certainly more than capable and a good option 2 It's up to you. These days people tend to use Entity Framework\LINQ as it's easier to do. Especially for simple operations like CRUD and basic queries so EF is probably a good option...

entity-framework

A Multi-Tenant (SaaS) Application With ASP.NET Core, Angular, EntityFrameworkCore and ASP.NET Boilerplate

2 Mar 2018 by alirıza adıyahşi

Creating a multi-tenant (SaaS) web application based on ASP.NET Boilerplate and using ASP.NET Core, Angular and EntityFrameworkCore.

entity-framework

A Multi-Tenant (SaaS) Application with ASP.NET MVC, Angularjs, EntityFramework and ASP.NET Boilerplate

18 Feb 2018 by Halil ibrahim Kalkan

Creating a multi-tenant (SaaS) web application based on ASP.NET Boilerplate and using ASP.NET MVC, Angularjs and EntityFramework

entity-framework

A referential integrity constraint violation occurred

22 Mar 2018 by Member 13586256

Hello I am using WPF using MVVM model with entity framework but i am getting this error while changing the value or foreign key column.I am using SaveOptions.AcceptAllChangesAfterSave option to save the change because or speed issue.Please help me. A referential integrity constraint violation...

entity-framework

A referential integrity constraint violation occurred

22 Mar 2018 by OriginalGriff

We can't solve this for you: it's got too much to do with your data, and how you are manipulating it. What's happened is that a value is left in a table, or inserted into a table which depends on other table information, or which other tables depend on. For example, if you have an Invoices...

entity-framework

A Silverlight Sample Built with Self-Tracking Entities and WCF Services - Part 2

8 Mar 2011 by Weidong Shen

Part 2 of a series describing the creation of a Silverlight business application using Self-tracking Entities, WCF Services, WIF, MVVM Light Toolkit, MEF, and T4 Templates.

A Silverlight Sample Built with Self-Tracking Entities and WCF Services - Part 4

12 Apr 2011 by Weidong Shen

Part 4 of a series describing creation of a Silverlight business application using Self-tracking Entities, WCF Services, WIF, MVVM Light toolkit, MEF, and T4 Templates.

A Year with Entity Framework

2 Jun 2015 by Gediminas Geigalas

I've been successfully using NHibernate as my first ORM for a few years. For the last year, I have decided to use Entity Framework instead. Here's what I liked and disliked.

entity-framework

About Entity Framework

26 Dec 2009 by Vinayaka Krishna Shenoy

From past few days i was doing some R & D on the upcoming Entity framework from Microsoft, and i found it was interesting in many ways,The first part which i liked the most is -Querying to the Entity Data Model(EDM) rather than the real data store.At a high level , we have plenty of...

entity-framework

Absolute Beginner's Tutorial on Understanding and Using Dapper ORM

3 Aug 2018 by Rahul Rajat Singh

This article introduces Dapper to absolute beginners.

entity-framework

accessing of cache to web application

14 May 2014 by Member 10226004

Hi, I created cache to the query results(i.e to dataset) in c# console application but i want to access the that created cache in my web application.If it is possible how can i access the cache in my web application fron console application.I dont have much knowledge in cache please give...

entity-framework

accessing of cache to web application

14 May 2014 by DamithSL

ASP.NET cache is Process/App domain specific, it can't be shared. Try below Advance Caching with Shared Cache[^]SharedCache - high-performance, distributed caching[^]Installing, Configuring and Using Windows Server AppFabric and the "Velocity" Memory Cache in 10 minutes[^]Distributed...

entity-framework

Accessing the values from controls that are not bound to a model

9 Jan 2013 by I.explore.code

Hi guys,I have just started out with ASP.NET MVC3/4 and I have hit my first wall. I have a model class and a view that is strongly typed to it and obviously a controller. This view has a WebGrid that defines several columns that are bound to the model and 2 date columns (text boxes...

entity-framework

Add a product with many prices to a shopping cart

17 Mar 2018 by Dodido_72

Hi! I am trying to add a product with many prices to a shopping cart(a one-to-many relationship entity framework). The customer has chosen a special size with its price in the product presentation (a short list with buttons on the right). Now I want to add this selected product, size and price...

entity-framework

Add ADO.NET Entity Framework

30 Dec 2011 by mohammadghaderian.bp

HiI am working with visual studio 2010 and my application is on .net 4.I want to use ADO.NET Entity Framework but when i open add new item dialog , this item is not in my list .how can i solve this problem ?if should i install its component where can i download it ?thanks a lot for...

entity-framework

Add ADO.NET Entity Framework

30 Dec 2011 by member60

Refer the following this might help you:[^]http://msdn.microsoft.com/en-us/library/bb399182.aspx[^]

entity-framework

Add ADO.NET Entity Framework

31 Dec 2011 by RaviRanjanKr

Try ADO.NET Entity Framework and .NET 4 - How to use Visual Studio 2010 Modeling Tools to Build a Database[^]

entity-framework

Add refrence class library and warning it

10 Aug 2016 by F-ES Sitecore

If means the assembly you are registering can't be found.

entity-framework

Add refrence class library and warning it

12 Aug 2016 by misaqyrn9677

Can Fix It Just All Layer Must One Version Net FrameWork

entity-framework

Add table to database using entity framework

10 Dec 2012 by demouser743

Is it possible to add an entity to a database. Initially I have updated a database from a model, now I created a new entity on the model, now I would like to add this entity to the database. How can I do thisInitial look of my edmx is as...

entity-framework

Add table to database using entity framework

10 Dec 2012 by Prasad_Kulkarni

Check this answer if you get some help out:Click here[^]

entity-framework

Add Text to Image - Sample Application

6 Mar 2016 by Anatoliy Khotin (9682296)

Small application that allows text to be added to an image for annotation or to create greeting cards using ASP.NET MVC and jQuery

entity-framework

Add values of consecutive list items into another object and return the object

11 Nov 2017 by spankyleo123

Hi Folks, Would appreciate if you can help me out in my query below. I want to add values of consecutive list items into another object and retun a list of this object. var books = db.Books.Where(x => x.MembershipId == membershipId).ToList().orderBy(x=> x.BookName); The above returns the...

entity-framework

Add values of consecutive list items into another object and return the object

11 Nov 2017 by Karthik_Mahalingam

Try this Create a class with 2 property Public class MyClass { Public string Name {get; set;} Public string Status {get; set;} } Iterate the books list (with increment of 2 )to store the Value property in Name and Status as below List lst = new List(); For( int I =O; I

entity-framework

Adding a Entity Database to WCF Rest .Net

2 Feb 2013 by Darith1974

Can anyone inform of a link, video or tutorial which shows how to connect a entity framework database(Database first) to a wcf rest application in visual studio? What i have found so far is not very useful?

entity-framework

Adding a Entity Database to WCF Rest .Net

2 Feb 2013 by Joezer BH

Hi Darith, See Implementing a WCF Service with Entity Framework[^]Cheers, Edo

entity-framework

Adding a Entity Database to WCF Rest .Net

2 Feb 2013 by Krunal Rohit

http://blogs.msdn.com/b/writin...

entity-framework

Adding class to Entity framework model diagram gives error "The type or namespace name <class> could not be found "

8 Nov 2015 by Member 12063314

So I've got a project and I've setup the Entity Framework model in a folder called App_code. I've previously added 5 classes (tables) with no problem, but when I try and add the PostCodesUK and then compile I get this error:Error 1 The type or namespace name 'PostCodesUK' could not...

entity-framework

Adding class to Entity framework model diagram gives error "The type or namespace name <class> could not be found "

9 Nov 2015 by Member 12063314

Managed to solve it with the solution posted here!

entity-framework

adding entity in entity framework

4 Dec 2013 by rajacsharp5

Hi frends,learning ef.small basic doubt is 1. i was added 2 tables and 1 stored procedure.later done=> right click on edmx file=> autocode generated. [done succes fully].now if i was added a table again that table was not added to the edmx .why.is there i have to do any...

entity-framework

Adding EntityFrameworkCore Support to .NET Core Project

13 Aug 2019 by Benktesh Sharma

Demonstrate how to add EF support in .NET Core project

entity-framework

Adding filters, Pagging using Entity framework in MVC 4.0

29 Aug 2014 by Aashish vermaa

Hi,I need some help in the following seniors:1. I have a view page where I display around 10 records without using any filter condition. But after all the data bind on the page, user could search a particular record or filter record. How can I achieve this functionality using...

entity-framework

Adding Metadata to Entities in The Data Model

20 Jan 2011 by Gil Fink

Adding Metadata to Entities in The Data Model

entity-framework

Adding relation in EntityFramework 4 using annotations

8 Mar 2012 by Ole Morten Heien

Hi allI have a database with no constreains and no relations. This is just a converted flat-file database and must not be touched.I nead to create entities with relations and tryed this:[Table("Customers")]public class customer{ [Key, Column("CustoemrID")] public int...

entity-framework

Additional information: the entity or complex type 'selexexpresscl.data.truck' cannot be constructed in a LINQ to entities query.

26 Feb 2018 by jupemen

I try query with linq but I get the following error: The entity or complex type 'SELEXExpressCL.Data.TRUCK' cannot be constructed in a LINQ to Entities query. TRUCK truck = (from item in context.TRUCKS where item.NUMBER == TruckNo select new TRUCK() ...

entity-framework

Additional information: the entity or complex type 'selexexpresscl.data.truck' cannot be constructed in a LINQ to entities query.

26 Feb 2018 by F-ES Sitecore

You don't have to create a new TRUCK class, you already have the object you need in "item" so just select that TRUCK truck = (from item in context.TRUCKS where item.NUMBER == TruckNo select item).Single(); BTW I googled the error message and this was the first...

entity-framework

Ado.net Entity Data model Database first approach updation issues.

15 Aug 2013 by sajid zafar_Iqbal

hi all,i am using ado.net entity data model for my application with MVC database first approach. Now the issue is that whenever i tried to update my entity model by following these steps1 - right click on model designer2- update model from database3- Add tables 4- Finish The new...

entity-framework

Ado.net Entity Data model Database first approach updation issues.

22 Sep 2013 by blumoononline

1 - right click on model designer2- update model from database3- Add tables4- Finish----------------------------After doing above steps,5 . Right click on Model designer6. Add code generation item -> Select Visual c# -> Add New Model.tt fie (EF 5.x DBContext Generator)...

entity-framework

ADo.Net entity frame work insert sequence number values

3 Jul 2013 by Narasima

Hi All,Please help me anybody on this.I am getting below error while save data into database.I am using Code firtst entity Framework.error is this. error on Updating record “An error occurred while updating the entries. See the inner exception for details.Model is ...

entity-framework

ADO.NET Entity Framework as Data Access Layer

30 Oct 2009 by sarvesh.upadhyay

ADO.NET Entity Framework as Data Access Layer

entity-framework

ADO.NET Entity Framework Interview Questions

11 Dec 2013 by Shivprasad koirala

Quick revision of 25 important ADO.NET Entity Framework interview questions with answers.

entity-framework

Ado.net or entity framework in MVC 5. Which one better ?

15 Apr 2016 by Amit-kumar-Amit-Kumar

Previous I was working on the Asp.Net(C#) with the ADO.Net Web Application, Now i want move on MVC 5. I am totally new in the MVC.I want to know which one is better in MVC 5, that ADO.Net or Entity Framework ?What I have tried:I have not perform any project with the use of MVC...

entity-framework

Ado.net or entity framework in MVC 5. Which one better ?

15 Apr 2016 by Richard Deeming

Which is better: a speedboat, or a Ferrari? *Without knowing the intricate details of your project, or your team's experience, capabilities and preferences, there's no way we can tell you which technology is "better". They're both pretty good, and both perfectly usable in ASP.NET MVC....

entity-framework

Advanced using OData in .NET: WCF Data Services

16 Dec 2010 by Vincent-Philippe Lauzon

Samples showcasing usage of OData in .NET (WCF Data Services); samples go in increasing order of complexity, addressing more and more advanced scenarios.

entity-framework

Advantages and disadvantages of using Entity Framework

29 Apr 2020 by Member 11072126

Hello everybody, I am new into Entity Framework. Can anybody explain me the advantages of using EF over ADO.Net and the disadvantages of EF too, with the help of example?

entity-framework

Advantages and disadvantages of using Entity Framework

27 Jul 2015 by OriginalGriff

We do not do your homework: it is set for a reason. It is there so that you think about what you have been told, and try to understand it. It is also there so that your tutor can identify areas where you are weak, and focus more attention on remedial action.Try it yourself, you may find it...

entity-framework

Advantages and disadvantages of using Entity Framework

1 Jan 2018 by Member 12824116

Advantages of Entity Framework The advantages of EF are given bellow: It provides auto generated code It reduce development time It reduce development cost It enables developers to visually design models and mapping of database It provides capability of programming a conceptual model. It...

entity-framework