Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
696 questions
2 answers
MVC Controller with Views, using Entity Framework
Does Visual Studio Provide a Tool to Custom Design MVC Controller with Views, using Entity Framework template specific to the needs of the project? This is felt necessary because the <table> generated in Index.cshtml using the default template…
Entity Framework Core
ASP.NET Core
ASP.NET Core
A set of technologies in the .NET Framework for building web applications and XML web services.
4,199 questions
Visual Studio
Visual Studio
A family of Microsoft suites of integrated development tools for building applications for Windows, the web and mobile devices.
4,631 questions
asked 2022-10-10T12:32:25.947+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(76.8, 21%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER%3C/text%3E%3C/svg%3E)
raklali
236
Reputation points
commented 2022-10-13T03:01:04.217+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(73.60000000000001, 90%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EZL%3C/text%3E%3C/svg%3E)
Zhi Lv - MSFT
32,016
Reputation points Microsoft Vendor
1 answer
One of the answers was accepted by the question author.
razor pages EF 6.0 insert data
While adding data to the database, Some people insert data directly this way : ... ApplicationDbContext.Add(MyModel); await ApplicationDbContext.SaveChangesAsync(); ... And some peoplpe add line by line the table field names : …
asked 2022-10-11T10:08:41.333+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(160, 69%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ECC%3C/text%3E%3C/svg%3E)
Curious Cat
21
Reputation points
accepted 2022-10-11T13:11:01.54+00:00
Curious Cat
21
Reputation points
3 answers
erro in command: dotnet-ef database update in linux
After migrations, I try to run the command: dotnet-ef database update The following error occurs: network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not…
asked 2022-10-08T14:06:09.617+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(262.40000000000003, 50%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EN%3C/text%3E%3C/svg%3E)
niltongc
1
Reputation point
answered 2022-10-10T22:51:08.75+00:00
Dan Guzman
9,211
Reputation points
7 answers
How to publish my Net Core 6 website on my Windows Server 2022 and link а domain name to it?
HI! How can I publish my Net Core 6 website on my Windows Server 2022 and link а domain name to it? Does anyone have links to an approximate sequence of actions? I raised IIS on Windows Server 2012 R2 a long time ago, but then I had Apache HTTP…
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(3.2, 66%, 10%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EVV%3C/text%3E%3C/svg%3E)
1 answer
CORS issue in .NET Core 6 API
When I deploy my API to the server and I try to consume APIs from a React app, I always get CORS errors. Frontend: https://dev.livedispatch.ca Backend: https://backend-dev.livedispatch.ca I followed this tutorial and nothing works, I get…
asked 2022-10-04T17:15:28.77+00:00
Stesvis
1,041
Reputation points
answered 2022-10-05T17:32:58.74+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 61%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBS%3C/text%3E%3C/svg%3E)
Bruce (SqlWork.com)
56,846
Reputation points
1 answer
One of the answers was accepted by the question author.
Visual Studio 2022 for mac, PM console or CLI to use entity framework command (add-migration, update-database, ecc.)
Hello, I'm using Visual Studio 2022 for mac, I have understood that the preview version not include PM console or CLI to use entity framework command. So, how can I do it? Which is the way to use entity framework commands, such as add-migration,…
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
696 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
3,402 questions
asked 2022-09-29T14:35:53.23+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(96, 39%, 19%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EIB%3C/text%3E%3C/svg%3E)
Igor Baldacci
41
Reputation points
commented 2022-10-05T14:15:28.077+00:00
Igor Baldacci
41
Reputation points
1 answer
How to set client Id in entity framework core (EF6) in DBContext
Hi There, We have a Web API in .NET 6 which uses entity framework core (EF 6). In our application we have Oracle database (19c) which has certain business use case specific tables. And, corresponding to that are history tables which gets populated…
asked 2022-10-01T01:04:35.447+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(259.20000000000005, 76%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESP%3C/text%3E%3C/svg%3E)
Srivastava, Prashant
1
Reputation point
commented 2022-10-02T16:05:58.493+00:00
Srivastava, Prashant
1
Reputation point
0 answers
One Bindinglist from multible DbSets to gridview
Just wondering if it is possible to bind 2 DbSets to one data grid view leveraging BindingList. public virtual DbSet<Candidate> Candidates { get; set; } = null!; public virtual DbSet<Candimmigration> Candimmigrations { get; set; } =…
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
696 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,292 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(185.6, 41%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EY%3C/text%3E%3C/svg%3E)
1 answer
Getting timeout exception on Count()
I am performing a query to the Customers table with some filters: var customers = Context.Customers .AsNoTracking() .Include(x => x.Client) .Include(x => x.CreatedByUser) …
1 answer
UserId from 128 to 450 characters
During a migration from a project built with EF6 to EF Core 6 I noticed that in EF Core the AspNetUsers.Id column is now an nvarchar(450) while before it was an nvarchar(128). My models have a foreign key to the AspNetUsers table of nvarchar(128) and…
asked 2022-09-29T15:18:03.96+00:00
Stesvis
1,041
Reputation points
answered 2022-09-29T15:53:02.57+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(256, 32%, 34%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMT%3C/text%3E%3C/svg%3E)
Michael Taylor
48,656
Reputation points
2 answers
Map only the selected columns when using EntityFramework
In my recent Entity Core project I am having database table called "YmPlant" and it has 20+ columns. But for my requirement I just need data only from 3 columns. Also I am not required to do the write operations. Only read from YmlPlant table. …
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
696 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
3,402 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,292 questions
asked 2022-09-23T17:53:48.407+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(195.2, 96%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENW%3C/text%3E%3C/svg%3E)
Nuwan Wickramanayaka
21
Reputation points
answered 2022-09-24T19:45:34.407+00:00
Karen Payne MVP
35,196
Reputation points
2 answers
broken .net framework aspnet webapi hosted on azure
Hello, I have a .net framework licensing server webapi app hosted on azure which has stopped working. It hasn't been used for a while, but when i came to update the keys, and use it again, i found it was broken. I wasn't able to get detailed logs…
asked 2022-09-20T07:02:59.78+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(67.2, 52%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMA%3C/text%3E%3C/svg%3E)
Martin Alley
6
Reputation points
commented 2022-09-22T08:20:45.48+00:00
JasonPan - MSFT
4,376
Reputation points Microsoft Vendor
1 answer
The JSON value could not be converted to System.String. Path: $[1].Interests[1].Meta[9].Content | LineNumber: 0 | BytePositionInLine: 10073. Error
public Class Emp{ public string Name { get; set; } [Column(TypeName = "jsonb")] public List<Section> Sections { get; set; } } public Class Section{ public string Booking { get; set; } [Column(TypeName =…
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
696 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
3,402 questions
C#
C#
An object-oriented and type-safe programming language that has its roots in the C family of languages and includes support for component-oriented programming.
10,292 questions
asked 2021-10-15T12:32:59.027+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(60.8, 36%, 15%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAM%3C/text%3E%3C/svg%3E)
AG Mohamed
1
Reputation point
commented 2022-09-22T03:36:46.767+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(284.8, 90%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EGM%3C/text%3E%3C/svg%3E)
Gustavo Melendez
1
Reputation point
1 answer
IDisposable question
I have a class that implements an interface and also IDisposable: public interface IMyObject : IDisposable { void MyMethod(); } public class MyObject: IMyObject { public void MyMethod() { …
9 answers
EF Core - updated data retrieve problem
Hello, I am trying to get updated data like this in my Blazor Server application: async Task PassiveDetail(OrderDetail orderDetail) { if (orderDetail == _detailToInsert) { _detailToInsert = null; …
1 answer
How To Upload multiple pics At a time in Asp.net core razor pages and save It to Database?
Making a form in EF core Razor pages. I did the file uploading thing from below link reference .But I want to choose multiple JPEG file only at a time. What to change or implement In this code? upload-image-to-aspnet-razor-page.html This is the…
asked 2022-09-21T06:59:26.357+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(224.00000000000003, 54%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Arnab
66
Reputation points
answered 2022-09-21T08:40:32.587+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(316.8, 41%, 40%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EXS%3C/text%3E%3C/svg%3E)
Xinran Shen - MSFT
2,091
Reputation points
2 answers
EF core 6.0 never working fine
I am coming to the conclusion that EF core is nothing but a bunch of bugs . I was correctly scaffolding a db until this morning . Now, without absolutely NO CHANGE in the DB schema and the scaffolding command , I realize that suddenly it…
asked 2022-09-14T08:46:52.413+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(137.6, 69%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELD%3C/text%3E%3C/svg%3E)
leo del ciello
66
Reputation points
answered 2022-09-21T08:18:15.307+00:00
Karen Payne MVP
35,196
Reputation points
3 answers
Why ASP.NET Core 3.1 application installs Angular v8 on it's own?
Hi, I have been trying to create a simple CRUD app using Angular v12 (the latest version) and .NET Core 3.1. Whenever I try to create project in VS, it created project with Angular v8. So I installed Angular v12 globally. But still it uses Angular v8…
asked 2021-05-13T21:24:23.767+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(38.4, 48%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ENS%3C/text%3E%3C/svg%3E)
Nimish Srivastav
1
Reputation point
answered 2022-09-20T16:47:00.11+00:00
Bruce (SqlWork.com)
56,846
Reputation points
1 answer
One of the answers was accepted by the question author.
Guide line for Entity Framework & Entity Framework core data security
i have little knowledge of Entity Framework usage. mostly i work with Sql Helper ADO.Net based wrapper and it has no such data security related features. so what kind of data security features are there with EF & EF core ? please provide…
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
696 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
3,402 questions
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(80, 33%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETZ%3C/text%3E%3C/svg%3E)
3 answers
EF Core Generic Repository get Id from new inserted generic entity async
Goal: get id of the inserted generic entity by using async with ASP.NET Core 3 Problem: what part am I missing in order to achieve the goal? Code: public async Task<int> AddAsync(T entity) { if (entity == null) …
asked 2021-01-28T18:04:08.617+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 25%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJT%3C/text%3E%3C/svg%3E)
JJ TT
141
Reputation points
commented 2022-09-15T22:04:22.797+00:00
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Anonymous