All Questions
20
questions
0
votes
1
answer
164
views
I am unable to store data into database using Entity Framework Core and Ajax
I have a problem with my code. The problem is I am not getting post data by parameter using ajax.
Can anyone fix this? The code is shown below.
This is Javascript Ajax code where I am sending data ...
- 49
0
votes
1
answer
339
views
Linq GroupBy expression raises AnonymousType exception
I have a query that returns an IEnumerable that I use to display a table of values.
I would like to group the tables (using a <H3/> element) by the model's DateTime field (StartTime).
I ...
- 26.1k
0
votes
1
answer
85
views
Passing a single object from a controller to a view
I have a web-based game built using .netCore 2 and entity framework.
The game works, but I just added a new feature. In one of the views, the user can press a button that creates a new character via ...
- 6,913
3
votes
1
answer
1k
views
What could cause `UserManager` to return the wrong user?
Something rather scary is happening on my ASP.NET Core 2.1.0 MVC site. While I was browsing, all of a sudden it shows I am logged in as a different user (who also happens to be browsing the site at ...
- 18.9k
1
vote
1
answer
1k
views
How to get ApplicationDbContext instance in AccountController for ASP .NET Core 2.0 With Individual Authentication?
I'm newbie in ASP .NET Core and need little help. I have created ASP .NET Core 2.0 MVC project with individual authentication. Now I want to access Current ApplicationDbContext in my ...
- 2,076
0
votes
1
answer
455
views
How to render a related entity in Razor template
Using ASP.NET Core 2.0, Entity Framework Core, and Visual Studio, I am trying to use a @foreach loop in the razor view to render the List "SecondEntityList" within the Entity1 model. I was able to use ...
- 2,240
0
votes
1
answer
261
views
Error while loading related data in EntityFrameworkCore
I am getting below error, while loading the related data (coursepages of a course).
Error
MySqlException: Unknown column 'c.Coursepages.CoursepageId' in 'field list'
Point of failure :
var ...
- 815
0
votes
2
answers
1k
views
ArgumentException: Keyword not supported: 'persistsecurity info' .NET Core MVC 2.0
I'm getting the exception
ArgumentException: Keyword not supported: 'persistsecurity info'
when attempting to read to the database after upgrading from .NET Core 1.1 to .NET Core 2.0. Project is ...
- 310
-1
votes
1
answer
32
views
Why is many to many visible in a Link To Entities Query until I project it out to a SelectItemList?
I have this query.
IQueryable<Staff> aolStaff =
_userRepo.Users
.Include(u => u.StaffOffices).ThenInclude(so => so.Office)
.Include(u => u....
- 5,367
2
votes
1
answer
1k
views
Edit Action in ASP.Net Core controller using another field
I have an URL field in my table for each of the courses. And i am using it as route parameter. I did this to make Urls user-friendly and as per my understanding this might also help me in SEO ( Please ...
- 815
0
votes
0
answers
850
views
.net core 2.0 MVC App - HTTP Error 502.5 - Process Failure
So since I have introduced EntityFramework Core into my application and added migrations in order to create the database, my application no longer starts. I get the following error page:
The ...
- 241
1
vote
0
answers
471
views
ASP.NET Core/EF Core 2.0 using too much memory that results SQL Server Timeouts
tl;dr I am not cleaning up the context, as I assume that is all handled with DI/automatically being scoped (this might be my problem)
I have a ASP.NET Core that utilizes EF Core and after a while my ...
- 4,829
10
votes
2
answers
3k
views
Mysql Entity Framework issue - Specified key was too long; max key length is 3072 bytes
When I use this command:
$ dotnet ef database update
I get this error:
Specified key was too long; max key length is 3072 bytes
The table which cause this error is a built-in Microsoft table for ...
- 8,829
6
votes
1
answer
11k
views
Could not load type 'Microsoft.EntityFrameworkCore.Infrastructure.DesignTimeProviderServicesAttribute'
I use Visual Studio for Mac, created a .net core web api project.
The csproj file is like this:
<Project Sdk="Microsoft.NET.Sdk.Web">
<PropertyGroup>
<TargetFramework>...
- 431
2
votes
1
answer
663
views
ASP.Net Core 2 - Using a DBContext having defaultConnectionString from appsettings
I want to create a basic CRUD in ASP.Net Core 2 with EntityFrameworkCore.
My appsettings.json file is like this-
"DefaultConnection": "server=localhost; port=3306; database=inventory_management; ...
- 79