This has nothing to do with migrations at all. The exception is telling you that you haven't configured your DbContext implementation with a database engine to use. Take a look at your code: protected override void...

entity-framework

MVC

How to properly configure the `services.adddbcontext` of `configureservices` method in MVC 8.0

U 24 Apr 2024 by Member 11307750

I am trying to add migartion to my datavase i keep having this error.Please i am a rookie to MVC Error Message Unable to create a 'DbContext' of type ''. The exception 'No database provider has been configured for this DbContext. A provider...

entity-framework

MVC

.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.

SQL

.NET

entity-framework

How do I receive the full data via entity framework query

21 Dec 2023 by Richard Deeming

You are performing an INNER JOIN - you will only get back results from the Addresses table which have a corresponding record in the ExtraData table. If you want all records from the Addresses table, even if they have no corresponding record in...

entity-framework

SQL-Server

How do I receive the full data via entity framework query

21 Dec 2023 by Sascha Manns

I have two tables in a database what i want to combine and work with that data. So i used that codesnippet: var listOfFoundRespIds = (from a in context.Adresses join e in context.ExtraData on a.LFD equals e.lfd where...

entity-framework

SQL-Server

System.nullreferenceexception in repository pattern

19 Dec 2023 by Richard Deeming

Since your repository code is swallowing all exceptions - an extremely bad idea, by the way! - the only reason for a NullReferenceException would be that the baseRepository is null. Check the constructor to make sure you've assigned the field...

System.nullreferenceexception in repository pattern

18 Dec 2023 by A Belal

in Repository Pattern System.NullReferenceException Delete Method System.NullReferenceException HResult=0x80004003 Message=Object reference not set to an instance of an object. Source=Microsoft.EntityFrameworkCore StackTrace: at...

System.nullreferenceexception in repository pattern

18 Dec 2023 by M Imran Ansari

As the error message, the issue is in Delete method. The Delete method attempts to remove an entity from the context using LapShopContext.Set().Remove(entity). However, the error you're encountering is a NullReferenceException, which suggests...

I have problem with JWT

20 Nov 2023 by Richard Deeming

You have no [Authorize] attribute on your ValuesController or any of its actions. Unless you have some configuration that you haven't shown, all of those actions will allow anonymous callers. Simple authorization in ASP.NET Core | Microsoft Learn[^]

I have problem with JWT

20 Nov 2023 by Andre Oosthuizen

Ok, so first - to run some error checking outside of your app, clear your browser cache or any other caching mechanisms that might be storing the old token as this might become an issue. I have converted your code to what I think might work,...

I have problem with JWT

20 Nov 2023 by A Belal

I get tokenKey from path https://localhost:7107/api/login And when i try to test token and get data from Path https://localhost:7107/api/Values the token work good and data comes well but when i remove token the data continue come and...

How to call stored procedure procedure using entity framework core?

6 Nov 2023 by Maciej Los

I'd strongly suggest to read this: Working with Stored Procedure in Entity Framework Core[^]

entity-framework

ASP.NET-Core

Razor

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

22 Oct 2023 by David_Cui

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

EF-Core

entity-framework

JSON

Which is suitable for performance use entity framework core or ADO.NET?

3 Oct 2023 by ahmed_sa

I work on Blazor application server side. I design web API to interact with razor pages. My issue is which is suitable for my scenario? Using ADO.NET or Entity Framework Core? What I try is as below: So is using data reader ADO.NET better or...

C#4.0

ASP.NET-Core

entity-framework

Which is suitable for performance use entity framework core or ADO.NET?

2 Oct 2023 by Graeme_Grant

I would compare EF Core with Dapper, not Ado.Net. Here are a couple of videos that go into detail... * Entity Framework Core vs Dapper Performance in 2023 - YouTube[^] * Making Entity Framework Core As Fast As Dapper - YouTube[^]

C#4.0

ASP.NET-Core

entity-framework

Provider: SNI_PN11, error: 26 - error locating server/instance specified after installing MAUI blazor app on other machine

14 Sep 2023 by Richard Deeming

At a guess, you're trying to connect to .\SQLEXPRESS or something equivalent, which requires that the SQL instance is running on the same machine as your code. In which case, you need to update your connection string to point to the correct...

Provider: SNI_PN11, error: 26 - error locating server/instance specified after installing MAUI blazor app on other machine

14 Sep 2023 by dolce_sweet

I have created a Maui Blazor app in .NET 7 which is pretty neat and runs beautifully locally. After installing the app on another Windows 10 Pro x64 machine, I get an error message that SQL Server Express (2019) cannot be reached. I get this...

Entity framework migration C# GUID foreign keys

14 Sep 2023 by HobbyProggy

As I am newly learning EF and wanted to migrate the existing "I write my own queries, that's way cooler" to something more stable and better to work with. Now I came across the question on how I can actually use the benefits of the relations...

entity-framework

Entity framework migration C# GUID foreign keys

22 Aug 2023 by HobbyProggy

So it worked with using modelBuilder.Entity() .HasOne(emt => emt.BaseInformationOfTemplate) .WithOne() .HasForeignKey(tib =>...

entity-framework

Entity framework migration C# GUID foreign keys

22 Aug 2023 by Richard Deeming

Quote: A futher interesting behaviour is, that if i load the "TemplateInformationBase" List first and then the "ChangeManagementTemplate" List, the Property of BaseInformationOfTemplate is filled with the data of the table. If i don't load the...

entity-framework

Entity framework migration C# GUID foreign keys

21 Aug 2023 by OriginalGriff

Read the error message carefully:Quote: he relationship from 'ChangeManagementTemplate.BaseInformationOfTemplate' to 'TemplateInformationBase' with foreign key properties {'IdTemplateInformationBase' : int?} cannot target the primary key...

entity-framework

How can I pass model to an access data layer/EF core project from a separate .NET web API core project

25 Jul 2023 by Member 13304618

I have a design question; thus, no code samples I am trying to create a Web API Core project that would use an EF Core to communicate with a database. I read about the Data Access design pattern and realize that I have to place a Web API project...

entity-framework

AutoMapper

WebAPI

How can I pass model to an access data layer/EF core project from a separate .NET web API core project

25 Jul 2023 by Richard Deeming

Quote: the EF core cannot reference the Web API You've just answered your own question: the mapping needs to be done in a project which has references to both the entity classes and the DTOs you're mapping to. Personally, I'd be inclined to...

entity-framework

AutoMapper

WebAPI

How to store property names and its values into dictionary using LINQ

24 Jul 2023 by Richard Deeming

You'll want to start by getting rid of that reflection! Add a couple of methods to your DTO: public IEnumerable AllMovieNames() { if (!string.IsNullOrEmpty(MovieName1)) yield return MovieName1; if...

SQL

entity-framework

LINQ

How to store property names and its values into dictionary using LINQ

24 Jul 2023 by Member 11072126

I am trying to develop an API which will be taking few movie names as part of ViewModel and will be setting respective movie IDs in DTO. The table representation for TBL_Movies (For example I have used only 5 data but in real there are quite...

SQL

entity-framework

LINQ

How to call stored procedure procedure using entity framework core?

8 Jul 2023 by ahmed_sa

I work on asp.net core entity framework I have csharp function done using ado dotnet stored proceure i need to convert it using entity framwork core with another meaning how to call stored proceure using entity framework core 6 and i don't...

entity-framework

ASP.NET-Core

Razor

VS2022, ver. 17.6.2 – EntityFramework6 Broken

6 Jun 2023 by Mark Pelf

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

entity-framework

Visual-Studio

Asp.net MVC database first scaffolding not creating classes

4 Jun 2023 by Uwakpeter

I created MVC application using the DB first approach in VS 2022, after adding the Entity Data Model to the application, the model.tt did not generate database tables as classes! What I have tried: I have deleted the EDM file multiple times,...

Asp.net MVC database first scaffolding not creating classes

4 Jun 2023 by Graeme_Grant

Check out this recent article, it will walk you through the process: Entity Framework 7 – Database First – Using EFCorePowerTools[^]

No parameters defined in this object

4 Jun 2023 by Gcobani Mkontwana

Hi Team I am having an issue with my crud application, basically this application uses business logic, entity framework for specific reason of the requirement. But the problem is when View is created and try to run this file 'Order/Edit.cshtml...

entity-framework

ASP.NET4

No parameters defined in this object

4 Jun 2023 by OriginalGriff

To add to what Graeme has said ... When you create a class the system adds a hidden default parameterless constructor for you so that you can create instances: public partial class MyClass { public MyClass() {} // Hidden constructor }...

entity-framework

ASP.NET4

No parameters defined in this object

4 Jun 2023 by Graeme_Grant

No parameterless constructor defined for this object. This is quite clear... This is a parameter constructor class: public class MyParameterClass { #region Constructors public MyParameterClass(int param1, int param2) { } #end...

entity-framework

ASP.NET4

Entity Framework 7 – Code First – Using CLI

1 Jun 2023 by Mark Pelf

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

.NET

entity-framework

database

Entity Framework 7 – Database First – Using EFCorePowerTools

25 May 2023 by Mark Pelf

Tutorial on EF7 – Database First approach using GUI tools EFCorePowerTools

.NET

entity-framework

database

Entity Framework 7 – Database First – Using CLI

25 May 2023 by Mark Pelf

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

.NET

entity-framework

database

Wie kann ich eine typ konvertierung einbringen? / How can I bring in a type conversion?

19 May 2023 by Graeme_Grant

Being a Linq statement, it will not execute against the database until you start iterating over the results or calling a ToList(). This is why you are getting the System.InvalidCastException.

entity-framework

Wie kann ich eine typ konvertierung einbringen? / How can I bring in a type conversion?

19 May 2023 by Hans-Jörg Eitner

Der Beginn meines Programms startet einen Integrationstest, der über einen Tupel zwei Wertpapierbestandslisten vergleicht. Die erste Liste enthält die Wertpapiere einer eingelesenen csv – Datei eines Depots. Die zweite Liste enthält die...

entity-framework

Validation failed for one or more entities. See entityvalidationerrors property for more details.

20 Apr 2023 by Yogeesha Naik

Validation failed for one or more entities. See entityvalidationerrors property for more details.[edit]SHOUTING removed - OriginalGriff[/edit]

entity-framework

Validation failed for one or more entities. See entityvalidationerrors property for more details.

20 Apr 2023 by Member 15984037

All good suggestions above. In fact, I solved my issue using Yogeesha's catch block above. It may be important to file this error away in your head, because you may run into this again. For me, I was passing a null value into a table field...

entity-framework

Insert data in local DB with ADO.NET EF6

19 Apr 2023 by Max Speed 2022

hi guys,i Added a "service-based database" into my project with this name : "database2.mdf" and connected to this DB from Server Explorer and i made a Table with this name:"UserTbl" and this table has 2x column with this names : "Id,Name". Next...

entity-framework

ADO

Insert data in local DB with ADO.NET EF6

19 Apr 2023 by Dave Kreskowiak

Sooo many problems in such a small amount of code. Where do I start? Well, why would you want to create two instances of the UserTbl class when you need to add just a single user? First, your UserTbl class needs an overhaul. You're thinking in...

entity-framework

ADO

Enttyframework unit test dependency injection - system.objectdisposedexception : cannot access a disposed context instance. A common cause of this error is disposing a context instance that was

16 Apr 2023 by mtoha

Hello, My app is working well. But when I try to create unit test, the entity framework is not working well I am trying to make Unit Testing for my Entity Framework, but when I try to get data / write data from server I am getting this error: ...

entity-framework

Enttyframework unit test dependency injection - system.objectdisposedexception : cannot access a disposed context instance. A common cause of this error is disposing a context instance that was

16 Apr 2023 by Graeme_Grant

REcommend that you check the documentation: Overview of testing applications that use EF Core - EF Core | Microsoft Learn[^] More information here, including YouTube instructional videos here: unit testing with entity framework - Google Search[^]

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

Move data from T1 to another using EF6

14 Mar 2023 by soufi web

Hi I want to move or (copy to t2 and delete from t1 )all data from table1 to table2 using Entity Framework, they have the same fields, and most of the answers talk about .Core or asp.net. I'm using EF6. Please Help me Thanks a lot What I have...

How do I find the top 5 rows?

11 Mar 2023 by Dave Kreskowiak

The query does work. It's doing exactly what you told it to do. The problem you have is that it's your understanding of the query that isn't correct.

entity-framework

ASP.NET-Core

MVC

How do I find the top 5 rows?

11 Mar 2023 by Member 14184489

Hi, I have an ASP.NET Core MVC app that contains two entities: Employee and Task. The relationship between these two entities is One-to-many. The information stored for an employee is the full name, email, phone number, date of birth, and monthly...

entity-framework

ASP.NET-Core

MVC

How do I find the top 5 rows?

11 Mar 2023 by OriginalGriff

The first thing to note is that that simplistic test will not work in January ... it will not roll back to December! Have a look at this: DateTime.AddMonths(Int32) Method (System) | Microsoft Learn[^] and think about what you actually need to...

entity-framework

ASP.NET-Core

MVC

How do I add decimal validation in the front end

8 Mar 2023 by Paul Maxwell 2023

I have looked briefly at the code image you provided and didn't see any JavaScript, so I'm not sure if this suggestion will make sense. However, it is a common technique to use JavaScript to test form input. This small JS function isMoney uses...

How do I add decimal validation in the front end

8 Mar 2023 by Keshav Mooruth

I am working on a C# E-Commerce application. I having difficulties deleting and adding a item to the cart. It gives me the error in the price column which is a decimal field. The application only executes the delete/add to cart when I change...

Anonymous authentication in MVC 5 project not working on production server

2 Mar 2023 by eekayonline

Based on the error message you provided, it appears that the issue may not necessarily be related to the tag in your web.config file, but rather to the Request.Anonymous field being null. Here are a few things you can try to troubleshoot the...

entity-framework

ASP.NET

Anonymous authentication in MVC 5 project not working on production server

2 Mar 2023 by Uwakpeter

I am trying to authenticate Anonymously in my mvc 5 project, it seems to work fine in my local host, but after deploying to production server, it does not see see the anonymous authentication tag in web.config file, i am having this error: Object reference not set to instance of an object,...

entity-framework

ASP.NET

Convert SQL statement into linq expression

23 Feb 2023 by Hania Anum

Hello Guys I am quite new to linq and .net core. I am trying to calculate the next tax return date of a company as a part of my final year’s project. If there is a newly made company with no tax has been made yet (means no entry in the tax...

MVC5

entity-framework

LINQ

Theninclude not generating joins

16 Feb 2023 by Dave Kreskowiak

Ignore me as I need to brush up on my EF Core.

.NET

entity-framework

Theninclude not generating joins

15 Feb 2023 by Shwetabb

For below query, resulting sql query has some joins missing: var query = this.practicesDbContext.ServiceTransactionToClaims .Include(x => x.ClaimEntity) .ThenInclude(x => x.Carrier) .Include(x => x.ServiceTransaction)...

.NET

entity-framework

Database First with Entity Framework

15 Feb 2023 by Kenji Elzerman

Learn the basics of Entity Framework with the database-first approach

entity-framework

.NET7

How can I resolve this error unauthorized_client

9 Feb 2023 by Member 13220552

hello, i use asp.net core for my app. i have installed identity server 4 when i launch my API it work well, but when i lauch my front end i have this error Sorry, there was an error : unauthorized_client Invalid redirect_uri Request Id:...

ASP.NET-Core

entity-framework

identity-server-4

How can I resolve this error unauthorized_client

9 Feb 2023 by Erik Sattler

Try with HTTPS Was the problem in my case :-)

ASP.NET-Core

entity-framework

identity-server-4

Best Practices for a Visual Studio Report Generator

6 Feb 2023 by JBartlau

This article provides an overview of Visual Studio's integration of combit's report generator List & Label.

How can I reach a cell in datagrid WPF

6 Feb 2023 by Max Speed 2022

hi,i joined 2x tables together and bound the items to my datagrideview(membersdataGrid),and thats worked but i can't reach id or anything else in my datagrid here is my code private void Load() { var st = (from s in...

entity-framework

WPF

DataGrid

How can I reach a cell in datagrid WPF

6 Feb 2023 by Richard Deeming

You've created an anonymous type[^] to represent the projection. There is generally no way to cast that to an object and read its properties short of reflection. One simple but fragile approach would be to use C#'s dynamic type[^], which will...

entity-framework

WPF

DataGrid

How to set up my entityframework for database generated properties

26 Jan 2023 by Davy Quyo

Hello I have an entity which has a string id. The is is autogenerated by a function into the database. I'm using the nugget package entityframeworkcore.sqlserver version 7.2 to store my entity into my database but somehow things don't work as...

MVC6

entity-framework

How to set up my entityframework for database generated properties

26 Jan 2023 by Graeme_Grant

Here is a good Google Search: entity framework tutorials - Google Search[^] This one, in the search results, I used a bit when needed: Entity Framework Tutorial[^]

MVC6

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.

How to save selected check boxes after submit?

7 Dec 2022 by Randomuser787

I'm working in mvc 5 entity framework SO im having 3 filters in index view with foreach loop getting items from database and displaying through viewbags to checkbox. After selecting check box and submitting i couldn't keep the selected items...

Entity Framework Fundamentals

5 Dec 2022 by Kenji Elzerman

Fundamentals of Entity Framework

.NET6

.NET

entity-framework

EF Core Contexts Sharing Transaction

26 Nov 2022 by Rudi Breedenraedt

How to share a transaction across multiple Entity Framework contexts

SQL

entity-framework

Condensing record count using EF

24 Nov 2022 by Member 15825061

I have a code block that works just fine, but it is troubling me by looking at it, there has to be a more simplified way, or cleaner way, to get the count of records in a database. I want to build a dashboard with about 10 record sums and I...

entity-framework

Condensing record count using EF

24 Nov 2022 by Richard Deeming

If you just need to count the records rather than loading them: int count = await _context.Blog.CountAsync(); EntityFrameworkQueryableExtensions.CountAsync Method (Microsoft.EntityFrameworkCore) | Microsoft Learn[^] That method has been...

entity-framework

Condensing record count using EF

24 Nov 2022 by Member 15825061

EF 6.0.10 is current version used var count = _context.Blog.FromSqlRaw($"SELECT COUNT(bId) FROM Blog").ToList(); ViewData["BlogCount"] = blogCount.ToString(); The sql works fine when I run query in SSMS, but I am getting an...

entity-framework

Condensing record count using EF

24 Nov 2022 by Dave Kreskowiak

Your query is telling EF to get all of the records from the Blog table, not count them. That's what the .ToListAsync call is doing. You didn't say which version of EF you're using, so this is just one possibility. If you want just the count, you...

entity-framework

How to add 100 to a model variable in the front end razor

15 Nov 2022 by Richard Deeming

You haven't shown any code, nor explained what the problem is. Based on the vague description provided, you need: Grand Total : @(Model.Sum(c => c.Price) + 100) But this sort of code really belongs in the view-model, not the view...

How to add 100 to a model variable in the front end razor

15 Nov 2022 by Keshav Mooruth

I am working on a C# E-Commerce application. I want to add 100 to the calculated grand total value in the front end Cart.cshtml File. What can I add this value in the Cart.cshtml file? https://i.stack.imgur.com/L0vMe.png[^] ...

I need to allow decimals in the front end on the form

13 Nov 2022 by Keshav Mooruth

Deleting from database resulting in multiple endpoints error

13 Nov 2022 by Keshav Mooruth

I am working on a C# E-commerce Application. After I add two products to my shopping cart, I get Multiple Endpoints error when attempting to delete from the cart. How can I successfully delete these items? Please view the two images attached...

SQL

entity-framework

MySQL

Deleting from database resulting in multiple endpoints error

13 Nov 2022 by Graeme_Grant

The error message is very clear, you have 2 endpoints with different names but with the same method signature. To quote AmbiguousMatchException Class (System.Reflection) | Microsoft Learn[^] An AmbiguousMatchException is thrown when a member...

SQL

entity-framework

MySQL

What telement mean here and when it use it?

9 Nov 2022 by ahmed_sa

I work on .net core 6 vs 2022 i see function have telement but i don't know what this mean can you show me please ? and when use it are there are any thing best from using telement What I have tried: public List...

C#7.0

entity-framework

ADO

What telement mean here and when it use it?

9 Nov 2022 by OriginalGriff

It's not telement, it's TElement: it's a type placeholder that makes the method work with multiple types without you having to code for all of them separately. Generic classes and methods | Microsoft Learn[^] Get used to them, they are a very...

C#7.0

entity-framework

ADO

Entity framework migrations NOT writing to database

8 Nov 2022 by Keshav Mooruth

I am working on a E-Commerce application in C#. I am following this tutorial on Youtube: https://www.youtube.com/watch?v=R25Edio81AU. When I do Migrations for each of the Tables in the ApplicationDBContext, the Migrations are empty. When I...

Entity framework migrations NOT writing to database

8 Nov 2022 by Richard Deeming

Deleting the migration files won't be enough. You also need to delete the "model snapshot" that's used to compute the difference between the last migration generated and the current model. The simplest option would probably be to delete the...

Error illegal characters in path when get connection string from entity framework ?

30 Oct 2022 by ahmed_sa

I work on entity framework on web application i get error when get connection string connection string as below : metadata=res://*/ERPEntities.csdl|res://*/ERPEntities.ssdl|res://*/ERPEntities.msl;provider=System.Data.SqlClient;provider...

ASP.NET-Core

entity-framework

Error illegal characters in path when get connection string from entity framework ?

30 Oct 2022 by Richard Deeming

You're passing an Entity Framework connection string to a class which expects a SQL Server connection string. You need to extract the SQL Server connection string and pass that in instead. For example: .net - Extract connection string from an...

ASP.NET-Core

entity-framework

System.data.sqlclient' is either not registered

28 Oct 2022 by Member 14108019

I am trying to save data into the MS SQL db using Entity Framework in dot net core. But I am getting this error - "The ADO.NET provider with invariant name 'System.Data.SqlClient' is either not registered in the machine or application config file, or could not be loaded. See the inner exception...

.NET-Core2.1

entity-framework

EF razor add CRUD scaffolding: there was an error running the selected code generator: scaffolding failed: could not load information for project

29 Sep 2022 by Mitchell CSharp

Issues like: Could not load information for project could not load file or assembly What I have tried: Updating Microsoft.VisualStudio.Web.CodeGeneration.Design version 6.0.9 to 6.0.10, but when scaffolding it keeps going back to version...

ASP.NET-Core

entity-framework

I have a problem in ASP.NET core MVC migration

20 Sep 2022 by Achraf Dahdah

Introducing FOREIGN KEY constraint 'FK_books_subCategories_SubCategoryId' on table 'books' may cause cycles or multiple cascade paths. Specify ON DELETE NO ACTION or ON UPDATE NO ACTION, or modify other FOREIGN KEY constraints. Could not create...

ASP.NET-Core

entity-framework

I have a problem in ASP.NET core MVC migration

20 Sep 2022 by Richard Deeming

As the error says, you have introduced multiple cascade-delete paths between categories and books: when you delete a category, you have to delete all books in that category, but you also have to delete all sub-categories in that category, which...

ASP.NET-Core

entity-framework

Getting error in server as system.data.entity.infrastructure.dbupdateexception: an error occurred while updating the entries

15 Sep 2022 by swathi p 2022

i am getting below issue when i ran scheduler in server. but when i run same scheduler in different server it worked.. Not sure why its giving below error only in one server. Can anyone please help.

entity-framework

MVC5

Sql server encryption with entity framework 6.0

3 Sep 2022 by TimWallace

You can use the TDE feature baked in to SQL Server. Check out Microsoft 's how-to: Transparent data encryption (TDE) - SQL Server | Microsoft Docs[^]

Entity framework LINQ behavior

29 Aug 2022 by Jamie888

Hi, I have 2 simple LINQ codes written in VB NET below. Which are to select record from database table. From the below 2 statements, they are almost identical, just the second query has one more condition in WHERE clause. Dim queryOne = (From...

entity-framework

LINQ

How to store session value to table in mvc5

25 Aug 2022 by Randomuser787

I have created session and also tables in db i just wanna store who creates or manipulates the data when a user logged in. when a user exists then from the log in -session it takes username and should store in the table at createdby how can i...

MVC5

entity-framework

ASP.NET

How to make editing in the database and in the view one attribute of the selected object with the datagrid?

23 Aug 2022 by CIDEY

I would like to make it so that when you double-click on a cell, the program defines an instance of the class and changes its attribute in the database, after which a request is sent to the server every 5 seconds, and the selected object will go...

Delete All Rows in Entity Framework Core 6

15 Aug 2022 by DiponRoy

How to delete all rows in EF Core 6 using alternate options

EF-Core

entity-framework

unit-testing

Executing Raw SQL Queries using Entity Framework Core 6

9 Aug 2022 by DiponRoy

Run Raw SQL Query - Entity Framework Core 6

Oracle

entity-framework

SQL-Server

Entity Framework Core Code First Publishing Multiple Db Contexts in the Same Database

7 Aug 2022 by DiponRoy

EF Core first publishing multiple DB contexts in same DB

EF-Core

entity-framework

CodeFirst

Customize Entity Framework Core Migration History Table

3 Aug 2022 by DiponRoy

Options to customize EF Core migration table

entity-framework

EF-Core

SQL-Server

How to add functionality to buttons( next previous first last) navigation buttons to primary key field using MVC

31 Jul 2022 by ahmed_sa

==========Problem========== Cannot add functions to Next previous last first for create action using repository pattern based on EmployeeId field ==========Example========== Employee Id : 5 as last record IF create action view get loaded it must show max+1 for Employee Id meaning it will...

Sql server encryption with entity framework 6.0

13 Jul 2022 by jbravofaria

Hello all, I've an application that uses Entity Framework 6.0 for SQL Server Data Access. I need to start using encryption for data at rest and data transactions. Can this be achieved? Any tutorial or instructions about how to do it? Thanks in...

Unable to create an object of type 'employeecontext'. For the different patterns supported at design time

29 Jun 2022 by Vikas Goswami0297

Unable to create migration in visual studio 2022 command : add-migration init Error : Unable to create an object of type 'EmployeeContext'. For the different patterns supported at design time What I have tried: PM> add-migration init Error...

.NET

entity-framework