All Questions
Tagged with entity-framework-core asp.net-web-api
264
questions
0
votes
1
answer
63
views
Json parse error while using /login method from WebApiCore Identity provided by [email protected]
While configuring authentication and autorization with web.api endpoints and using:
\packages\microsoft.aspnetcore.identity.entityframeworkcore\8.0.6
\packages\microsoft.entityframeworkcore.sqlserver\...
- 2,176
-3
votes
1
answer
36
views
why don't Show EF Core 6, AppDbContext onModelCreating in modelbuilder.HasDefaultSchema("Schema name"); [closed]
why dont Show EF Core 6, AppDbContext onModelCreating in
modelbuilder.HasDefaultSchema("Schema name");
i tried different methods,
I almost asked the AIs too,
ChatGPT, Bing etc. but somehow ...
0
votes
1
answer
54
views
ASP.NET Entity Framework Core - one-to-many relationship foreign key constraint blocking PUT request
I have a relationship on project and employee entities. I need have added a one-to-many relationship using Entity Framework Core (one employee have many projects, but one project has one employee). ...
0
votes
1
answer
81
views
Complex queries in Entity Framework Core
I have these two entities in EF Core:
public class Chat
{
public int Id { get; set; }
public string SessionId { set; get; } = string.Empty; // Could be sessionId or anything that indicate the ...
0
votes
1
answer
43
views
How to format JSON for a POST request for a One-to-Many Entity using EF Core?
I have an ASP.NET Web API with Performer and Venue Models. I am attempting to create a Booking Model, wherein a Performer has many bookings, a Venue has many bookings, and a Booking has one Performer ...
0
votes
2
answers
58
views
Is the speed of the query I write to the table with a lot of data normal?
I have a table named "Applications" where I keep track of the applications made by my candidates to vacancies. Now, I need to write a statistical query for HRs, and when an HR logs in, I ...
- 41
0
votes
1
answer
40
views
Optimisitic Concurrency Timestamp Error, Timestamp does not have a default value
I have an entity class as follows
public class Order
{
public long Id { get; set; }
//other properties
[Timestamp]
public byte[] Timestamp { get; set; }
}
I also have the following ...
- 1,888
0
votes
0
answers
25
views
System.Invalid The instance of entity type 'LecAttendanceEntity' cannot be tracked because another instance with the keyvalue is already being tracked
[HttpPost("PostLecAttendance")]
public async Task<IActionResult> PostLecAttendance([FromBody] LectureAttendanceRequestDto request)
{
if (!ModelState.IsValid)
{
return ...
0
votes
1
answer
57
views
Trouble saving workout data to database using Entity Framework Core and ASP.NET Web API
I'm encountering difficulties when attempting to save workout data to a database using Entity Framework Core and ASP.NET Web API. I have a Workout class defined with properties such as WorkoutId, ...
- 91
0
votes
1
answer
73
views
Returning Entity Results with Includes from Web Api
I'm fairly new to Entity Framework Core.
I have a data structure like this:
Books contain many Chapters.
Chapters contain many PageNotes.
My entity query in my API controller is like this, and through ...
- 981
-1
votes
1
answer
199
views
why can't I download Microsoft.EntityFrameworkCore.SqlServer to my DAL (WEB API) in c#?
I need some help. I want to write an ASP.NET Web API in C# (I created a project on the .NET framework), but first I need to connect it to my database in SQL Server.
In order to connect to the database,...
4
votes
5
answers
124
views
Compare ComplexType EFCore in Where clause
I have a complex type named MSISDN which looks like below:
public class MSISDN
{
public string NDC { get; set; }
public string CC { get; set; }
public string SN { get; set; }
...
- 1,479
0
votes
1
answer
94
views
LINQ could not be translated. Call to 'AsEnumerable', 'AsAsyncEnumerable', 'ToList', or 'ToListAsync'
How can I compare a list sent to me for filtering with a list in my database?
I have a List called CandidateLanguage in my candidate entity.
And I get a list called LanguageSkills from outside to ...
- 41
0
votes
1
answer
56
views
How can I create an entity by using generic repository pattern
I used a generic repository
interface IGenericRepository<T> where T:class
One of data access method is this post method
Task<T> AddEntityAsync(T Entity), I also created add Dto class for ...
0
votes
2
answers
71
views
Is the speed of the query I wrote for statistics normal?
I want to know if this query I wrote for statistics is fast. It currently works in 3 seconds with the data and query I wrote below.
Now I have a user table. Those whose role is Hr can create a vacancy....
- 41