Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
725 questions
1 answer
SQL Server and EF Core, create “Lock Request Timeout” error
(I asked this on StackOverflow as well, figured I'd throw it out here too) I recently had my EF Core (2.1) code throw a DbUpdateException, caused by a lock request timeout. I think I understand the basic idea behind this (EF doesn't lock items until it…
asked 2021-03-11T00:20:33.53+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(265.6, 35%, 35%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBT%3C/text%3E%3C/svg%3E)
Bill Turner
1
Reputation point
commented 2021-03-15T14:28:40.56+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(281.6, 93%, 37%)' 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)
Navtej Singh Saini
4,221
Reputation points Microsoft Employee
2 answers
One of the answers was accepted by the question author.
EF Core add new record, assigned identity when life cycle is scoped
Hi In asp.net core 3.0 app with ef core 3.18, dbcontext registered AsScoped, when a new record created with identity set as integer and incremental, and automatic number identity value is assigned to that entity record, say 1, if at the same time in…
asked 2021-02-28T17:21:14.217+00:00
babak fakhriloo
41
Reputation points
accepted 2021-03-10T16:38:46.197+00:00
babak fakhriloo
41
Reputation points
2 answers
Eager loading by default in the model
Would like a specific entity to have a navigation property eager loaded by default. Is this a feature in EF5? https://github.com/dotnet/efcore/pull/19355
![](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(268.8, 89%, 36%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ED%3C/text%3E%3C/svg%3E)
1 answer
Not all FK's updating con savechanges
Afternoon, Hope someone can help me, I have the following model: The rough code (I know its a mess) at present while I am trying to workout what is going on is as follows to add a note and link it to the changelog: public async…
asked 2021-03-07T17:36:30.957+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, 93%, 31%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ELC%3C/text%3E%3C/svg%3E)
Liam C. Holmes
1
Reputation point
answered 2021-03-07T20:19:07.71+00:00
Liam C. Holmes
1
Reputation point
1 answer
The Name of the Tool from the Picture
Goal: The name of the tool in order review the code as a sql code when you apply the input linq code C# (https://www.red-gate.com/simple-talk/wp-content/uploads/imported/2325-1-2fbc0f9f-774f-441e-a91c-acdd4a812ba7.png) Problem: What is the name…
asked 2021-01-17T22:08:36.517+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
answered 2021-03-07T01:02:28.033+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(214.4, 86%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EWG%3C/text%3E%3C/svg%3E)
Wade Gausden
166
Reputation points
1 answer
One of the answers was accepted by the question author.
Entity Framework Core 5 doesnt support Oracle 10G?
I'm trying to create a Model from my database Oracle(10g) using Scaffold-DbContext. Scaffold-DbContext "DATA SOURCE=XPERTISE.world;PASSWORD=XXX;USER ID=SCHEDULE" Oracle.EntityFrameworkCore -OutputDir Models -Tables MEETINGS -Force. Im…
asked 2021-02-27T11:14:01.423+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(35.2, 38%, 13%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EOR%3C/text%3E%3C/svg%3E)
oscar rodriguez urbina
21
Reputation points
commented 2021-03-01T16:54:29.977+00:00
oscar rodriguez urbina
21
Reputation points
0 answers
EntityFramework Any in Where
Hello, when i try to use Any in EF Core where, i get an error. can you help? query: var identifierslist = new List<DeviceIdentifierModel>(){..identifiers here...}; var devices = await _context.Device.AsNoTracking() …
asked 2021-02-18T11:06:17.587+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(284.8, 33%, 37%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESU%3C/text%3E%3C/svg%3E)
Selçuk Yıldırım
1
Reputation point
commented 2021-02-22T08:27:35.057+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(19.2, 7.000000000000001%, 11%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDZ%3C/text%3E%3C/svg%3E)
Daniel Zhang-MSFT
9,621
Reputation points
2 answers
One of the answers was accepted by the question author.
Update entities all at once
I have a list of entities returned me from external service, in this list i would take only item with flag IsNew setted to true and save in my database. My code is: var entitiesLst =ExternalService("BoxIt"); foreach (var…
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
725 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.
10,629 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(115.19999999999999, 91%, 21%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EF%3C/text%3E%3C/svg%3E)
1 answer
One of the answers was accepted by the question author.
Very slow database creation within Azure function project deployed to Premium plan
Something I have discovered whilst investigating some performance issues is that it is taking entity framework between 6 and 7 seconds to perform the first database operation (the database has 152 tables) when deployed into an Azure Premium Function…
![](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, 90%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAH%3C/text%3E%3C/svg%3E)
1 answer
One of the answers was accepted by the question author.
set variable of partial class
I have a generated clas (with soapui) I need to pas data to a class order This class has partial classes The code : This is what i try and th error i get .... Dim orders(1) As dpd_label.order orders(1) =…
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
725 questions
.NET
.NET
Microsoft Technologies based on the .NET software framework.
3,625 questions
ASP.NET
ASP.NET
A set of technologies in the .NET Framework for building web applications and XML web services.
3,411 questions
VB
VB
An object-oriented programming language developed by Microsoft that is implemented on the .NET Framework. Previously known as Visual Basic .NET.
2,661 questions
.NET Runtime
.NET Runtime
.NET: Microsoft Technologies based on the .NET software framework.Runtime: An environment required to run apps that aren't compiled to machine language.
1,140 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(22.400000000000002, 87%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
1 answer
Passing multiple Lists in single parameter
Hi Team I have below requirement. ' There are 3 list with different class type. Example: List<Customer> lst1=new LIst<Customer>(); List<CustomerOrder> lst2=new List<CustomerOredr>(); List<CustomerTransaction>…
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
725 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.
10,629 questions
asked 2021-02-05T12:37:27.297+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, 80%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EPK%3C/text%3E%3C/svg%3E)
prasad k
86
Reputation points
answered 2021-02-05T16:08:22.58+00:00
Duane Arnold
3,216
Reputation points
1 answer
One of the answers was accepted by the question author.
Sample code Asp.Net Core Datatables Jquery pagination MVVM Services
Hi, I would like a template sample code to get started, with Asp.Net Core CRUD operations with search pagination , master detail pages. Dependency Injection CODE FIRST ENTITY Framework Datatables Jquery I have a solution developed on…
asked 2021-01-29T07:41:29.96+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(182.40000000000003, 69%, 27%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMG%3C/text%3E%3C/svg%3E)
murtaza gandhi
81
Reputation points
accepted 2021-02-01T07:43:39.617+00:00
murtaza gandhi
81
Reputation points
1 answer
EF Core 5 many-to-many disconected add/remove without join entity class
EF Core 5 introduced many-to-many by convention, we only need to add the collection navigation property on each side and it works. I know I can query one side of the relationship, add it to the collection property and save it, but this requires an…
asked 2021-01-30T09:27:12.827+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(243.2, 41%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDT%3C/text%3E%3C/svg%3E)
Diego Torres
1
Reputation point
answered 2021-02-01T06:13:50.197+00:00
Daniel Zhang-MSFT
9,621
Reputation points
2 answers
Receiving chat messages with SignalR
I tested the SignalR solution in Xamarin Forms and .net core backend and it works great: https://montemagno.com/real-time-communication-for-mobile-with-signalr/ However, I am wondering how to keep receiving the messages when the app is in background…
![](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(230.39999999999998, 76%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ET%3C/text%3E%3C/svg%3E)
1 answer
EF Core question regarding relations
I'm building a ticket system. I have two models: User and Ticket. A user can have multiple tickets, and is bound to the ticket via the Customer_Id field. Another user, with the role of Practitioner, can also be assigned to the ticket, via the…
asked 2021-01-20T08:21:36.483+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, 9%, 23%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ETG%3C/text%3E%3C/svg%3E)
Tobias Groeneveld | TendenZ
1
Reputation point
commented 2021-01-26T02:34:04.33+00:00
Daniel Zhang-MSFT
9,621
Reputation points
1 answer
Where to store xamarin forms chat messages
Hi, I need to implement a chat service in my app. Before I get too far on this, I would like to ask for an opinion on where to store chat messages. My options so far are: Twilio chat My own DB There are pros and cons, Twilio chat costs…
asked 2021-01-22T16:31:46.813+00:00
Stesvis
1,041
Reputation points
answered 2021-01-22T16:37:29.997+00:00
Alessandro Caliaro
4,181
Reputation points
1 answer
Creating a generic template in C#
I have researched that C#, as well as its predecessor, C++, enable users to create generic templates. Here are the two source code snippets below: using System; using System.Collections.Generic; using System.Data.OleDb; using System.IO; namespace…
Windows Forms
Windows Forms
A set of .NET Framework managed libraries for developing graphical user interfaces.
1,870 questions
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
725 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.
10,629 questions
.NET Runtime
.NET Runtime
.NET: Microsoft Technologies based on the .NET software framework.Runtime: An environment required to run apps that aren't compiled to machine language.
1,140 questions
asked 2021-01-20T06:12:29.877+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(153.6, 0%, 24%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EJ%3C/text%3E%3C/svg%3E)
JohnCTX
636
Reputation points
commented 2021-01-20T08:20:54.047+00:00
Daniel Zhang-MSFT
9,621
Reputation points
0 answers
Error adding migrations: Failed to create CoreCLR, HRESULT: 0x80070057
I'm having an issue whereby I get the error message: Failed to create CoreCLR, HRESULT: 0x80070057 when I use any of the entity framework tooling. I have 2 projects in my solution an ASP.NET Core (.NET 5) Web API and a .NET Standard 2.0 Class Library. …
asked 2021-01-16T04:14:20.537+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(291.2, 67%, 38%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ES%3C/text%3E%3C/svg%3E)
SoggyBottomBoy
6
Reputation points
commented 2021-01-20T08:06:46.907+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(233.6, 98%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ERN%3C/text%3E%3C/svg%3E)
Rena Ni - MSFT
2,066
Reputation points
0 answers
Spatial data operations
Hello, I have to migrate some routines written in VBNET in WPF environment on AZURE (webapi net core). In these routines spatial operations such as union, intersection, etc. take place. here is an example: Private Sub example(ByVal sender…
Entity Framework Core
Entity Framework Core
A lightweight, extensible, open-source, and cross-platform version of the Entity Framework data access technology.
725 questions
ASP.NET Core
ASP.NET Core
A set of technologies in the .NET Framework for building web applications and XML web services.
4,385 questions
.NET Runtime
.NET Runtime
.NET: Microsoft Technologies based on the .NET software framework.Runtime: An environment required to run apps that aren't compiled to machine language.
1,140 questions
asked 2021-01-14T10:50:45.65+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(163.2, 43%, 25%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMS%3C/text%3E%3C/svg%3E)
Marco Salvatori
191
Reputation points
asked 2021-01-14T10:50:45.65+00:00
Marco Salvatori
191
Reputation points
1 answer
AddDbContext<TContextService, TContextImplementation> don't use DI to create the db
In my project I have created this DbContext derived class: public class SqliteContext : DbContext, IRepoContext { private readonly string _fullname; public SqliteContext() { _fullname = SqliteHelpers.CreateDbFullName(); } …
asked 2021-01-07T10:45:45.907+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(230.39999999999998, 64%, 32%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMS%3C/text%3E%3C/svg%3E)
Marco Segurini
21
Reputation points
commented 2021-01-12T09:05:32.047+00:00
Daniel Zhang-MSFT
9,621
Reputation points