We can pass single int parameter as below.
#Html.ActionLink(item.RemoteAgent.Name, "Details", "RemoteAgent", new { id = item.RemoteAgent.Id })
But what if we want to pass complex object?
what can be done here?
You can serialize the model in client side,and then deserialize it in action.Here is a demo.
Model:
public class TestModel
{
public string FirstName { get; set; }
public string MiddleName { get; set; }
public string LastName { get; set; }
}
View:
#{ TestModel m=new TestModel { FirstName="f1",MiddleName="m1",LastName="l1"};}
#Html.ActionLink("Index1", "Index1", "A", new { model = Json.Serialize(m)})
Action:
public IActionResult Index1(string model)
{
TestModel testModel = JsonConvert.DeserializeObject<TestModel>(model);
return Ok();
}
result:
Related
Request:
namespace mediere_API.Requests
{
public class LocalitateRequest
{
public string Nume { get; set; }
public int JudetId { get; set; }
}
}
DTO
namespace mediere_API.Dtos
{
public class LocalitateDTO
{
public int Id { get; set; }
public string Nume { get; set; }
public JudetDTO Judet { get; set; }
}
}
Entity
using mediere_API.Dtos;
using System.ComponentModel.DataAnnotations;
namespace mediere_API.DataLayer.Entities
{
public class Localitate : BaseEntity
{
[Required]
public string Nume { get; set; }
[Required]
public int JudetId { get; set; }
public virtual Judet judet { get; set; }
public Localitate() { }
}
}
Processor method
async Task<ActionResult> ILocalitatiProcessor.AddLocalitate(LocalitateRequest localitateRequest)
{
var record = _mapper.Map<Localitate>(localitateRequest);
_unitOfWork.Localitati.Insert(record);
if (await _unitOfWork.SaveChangesAsync() == false)
{
return new BadRequestResult();
}
return new CreatedAtRouteResult("GetByIdLocalitate", new {Id = record.Id}, _mapper.Map<LocalitateDTO>(record));
}
So, I have these pieces of code.
The way I'm using my front-end, I need to have the navigation properties filled in when I get the response on the POST request.
Right now I get:
{
"id": 12777,
"nume": "test",
"judet": null
}
On the get requests it works properly, but with CreatedAtRouteResult it doesn't, and I know why, but I don't know how should I fix it.
Record doesn't have the navigation properties filled in because it is a mapping of localitateRequest (which doesn't have the navigation properties) to Localitate.
So, how should I approach this problem?
Thanks.
I use DTO class in API layer and I struggle to map DTO class to "model" class in generic Repository.cs in core layer.
Repository.cs :
namespace DTOMap.Core.Repository.Generic
{
public class Repository<T> : IRepository<T> where T : class
{
private DTOMapContext _context;
private DbSet<T> _table;
private IMapper _mapper;
public Repository(DTOMapContext context)
{
_context = context;
_table = _context.Set<T>();
var config = new MapperConfiguration(cfg =>
{
cfg.AddProfile<MyMapper>();
});
_mapper = config.CreateMapper();
}
public T Add(T obj)
{
// Here how to use My Mapper to save a book or an author generically
// Sth like :
// temp = _table.Add(_mapper.Map<T>(obj)); Here I want to map Dto to model to save in the db
// return = (_mapper.Map<T>(temp)); Here I want to map Model to DTO to collect it in API
// but I can't have a reference to TDTO
throw new NotImplementedException();
}
}
}
I show you the other classes that I find useful (I only implement Add function for this example and I am a beginner in .Net) :
Author.cs
namespace DTOMap.Core.Models
{
[Table("Author")]
internal class Author
{
[Key]
public int id { get; set; }
[Required, MaxLength(255)]
public string firstName { get; set; }
[Required,MaxLength(255)]
public string lastName { get; set; }
}
}
Book.cs
namespace DTOMap.Core.Models
{
[Table("Book")]
internal class Book
{
[Key]
public int id { get; set; }
[Required,MaxLength(255)]
public string name { get; set; }
[Required]
public int authorId { get; set; }
[Required]
public Author author { get; set; }
}
}
AuthorDTO.cs
namespace DTOMap.Domain.DTO
{
public class AuthorDTO
{
public int id { get; set; }
public string firstName { get; set; }
public string lastName { get; set; }
}
}
BookDTO.cs
namespace DTOMap.Domain.DTO
{
public class BookDTO
{
public int id { get; set; }
public string name { get; set; }
public int authorId { get; set; }
public AuthorDTO author { get; set; }
}
}
IRepository.cs
namespace DTOMap.Domain.Interface
{
public interface IRepository<T>
{
T Add(T obj);
}
}
MyMapper.cs
namespace DTOMap.Core
{
public class MyMapper : Profile
{
public MyMapper()
{
CreateMap<Book, BookDTO>();
CreateMap<BookDTO, Book>();
CreateMap<Author, AuthorDTO>();
CreateMap<AuthorDTO, Author>();
}
}
}
program.cs
... Some Fcts
builder.Services.AddTransient<IRepository<BookDTO>, BookRepository>();
builder.Services.AddTransient<IRepository<AuthorDTO>, AuthorRepository>();
... Some Fcts
If you need any other information, please ask me.
I'm new to the whole Automapper world in .net core 3.1 and was going through the docs and SO, but couldnt' find anything for my use case from their latest version 8.0.
Borrowing from another SO post, how could I do this in the new v8.0 configuration?
public class People {
public string FirstName {get;set;}
public string LastName {get;set;}
}
public class Phone {
public string Number {get;set;}
}
Convert to a PeoplePhoneDto like this:
public class PeoplePhoneDto {
public string FirstName {get;set;}
public string LastName {get;set;}
public string PhoneNumber {get;set;}
}
Would I use still do this?
Mapper.CreateMap<People, PeoplePhoneDto>();
Mapper.CreateMap<Phone, PeoplePhoneDto>()
.ForMember(d => d.PhoneNumber, a => a.MapFrom(s => s.Number));
Here is a working demo like below:
Model:
public class People
{
public string FirstName { get; set; }
public string LastName { get; set; }
}
public class Phone
{
public string Number { get; set; }
}
public class PeoplePhoneDto
{
public string FirstName { get; set; }
public string LastName { get; set; }
public string PhoneNumber { get; set; }
}
AutoMapper profile:
public class AutoMapperProfile : Profile
{
public AutoMapperProfile()
{
CreateMap<People, PeoplePhoneDto>();
CreateMap<Phone, PeoplePhoneDto>()
.ForMember(d => d.PhoneNumber, a => a.MapFrom(s => s.Number));
}
}
Startup.cs:
services.AddAutoMapper(typeof(AutoMapperProfile));
Controller:
public class HomeController : Controller
{
private readonly IMapper _mapper;
public HomeController(IMapper mapper)
{
_mapper = mapper;
}
public IActionResult Index()
{
var people = new People() { FirstName = "aaa", LastName = "bbb" };
var phone = new Phone() { Number = "12345" };
var model = _mapper.Map<PeoplePhoneDto>(people); // map dto1 properties
_mapper.Map(phone, model);
//do your stuff...
return View();
}
}
Result:
I am trying to apply the odata query to my automapper - mappings at my efcore context. Everything works as expected until I use the $select query option.
When I try to use the select keyword in the request to my odata - controller, I get the exception:
SerializationException: 'SourceSourceInjectedQuery`2' cannot be serialized using the ODataMediaTypeFormatter.
I am using the UseAsDataSource - Extension method because it was recommended here on github.
This is my oDataController:
public class StudentsController : ODataController {
private readonly SchoolContext schoolContext;
public StudentsController(SchoolContext schoolContext) {
this.schoolContext = schoolContext;
}
[EnableQuery]
public IActionResult Get() {
return Ok(
schoolContext
.Students
.UseAsDataSource()
.For<StudentVM>()
);
}
}
This is my Entity for EFCore:
public class Student {
public int ID { get; set; }
public string LastName { get; set; }
public string FirstMidName { get; set; }
public DateTime EnrollmentDate { get; set; }
public ICollection<Enrollment> Enrollments { get; set; }
}
And this is my mappingprofile for automapper:
public class StudentVM {
public int ID { get; set; }
public string LastName { get; set; }
public string FirstMidName { get; set; }
}
public class StudentProfile : Profile {
public StudentProfile() {
CreateMap<Student, StudentVM>();
}
}
Do I need some specific mapping to do this?
I figured out I had a mistake in my configuration of the odataservice inside my startup.cs
private static IEdmModel GetEdmModel() {
ODataConventionModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<Student>("Students");
builder.EntitySet<Course>("Courses");
return builder.GetEdmModel();
}
I put my Entities instead of my ViewModels there. This is the fixed code:
private static IEdmModel GetEdmModel() {
ODataConventionModelBuilder builder = new ODataConventionModelBuilder();
builder.EntitySet<StudentVM>("Students");
builder.EntitySet<CourseVM>("Courses");
return builder.GetEdmModel();
}
Now it's working as expected
I am new in MVC. I am working on a project where i have created a model class and also context class which is working good if i view the record in normal view.
but if i try to get the data in group by "Series_Name" and bind it into same model class it gives error. here is my code
Here is Model class and DBContextClass
[Table("tblvideo")]
public class TVSerial
{
[Key]
public Int64 Video_ID { get; set; }
public string Series_Name { get; set; }
public string Season_No { get; set; }
public string Episode_No { get; set; }
public string Episode_Name { get; set; }
public string Time_Duration { get; set; }
public string File_Url_480p { get; set; }
public string File_Url_720p { get; set; }
public string Description { get; set; }
public bool Is_Active { get; set; }
public string Image_Url_Small { get; set; }
public string Image_Url_Big { get; set; }
}
public class TvSerialContext : DbContext
{
public DbSet<TVSerial> TvSerials { get; set; }
}
Here is controller class:
public class TvSerialController : Controller
{
public ActionResult ListAllTvSerial()
{
try
{
TvSerialContext tvContext = new TvSerialContext();
List<TVSerial> tv = tvContext.TvSerials.ToList();
return View(tv);
}
catch (Exception ex)
{
return Content(ex.Message);
}
}
}
Above code works as expected, but if i am doing this :
public ActionResult ListAllSeason(string serial)
{
try
{
TvSerialContext tvContext = new TvSerialContext();
List<TVSerial> tv = tvContext.TvSerials.Where(tvs => tvs.Series_Name == serial).Distinct().ToList();
return View(tv);
}
catch (Exception ex)
{
return Content(ex.Message);
}
}
it return all rows , i just want single row from every series_name and custom field "Series_Name,Season_No,Image_Url_Big"
i don't know how to achieve this.
getting result :
Expected result:-
You could do this by creating a view model and using a .GroupBy() clause
public class TVSerialVM
{
public string SeriesName { get; set; }
public string SeasonNo { get; set; }
public string ImageUrl { get; set; }
}
and the query to project into your view model
List<TVSerialVM> model = tvContext.TvSerials.Where(t => t.Series_Name == serial)
.GroupBy(t => new { t.Series_Name, t.Season_No, t.Image_Url_Big })
.Select(t => new TVSerialVM
{
SeriesName = t.Key.Series_Name,
SeasonNo = t.Key.Season_No,
ImageUrl = t.Key.Image_Url_Big
}).ToList();
Side note: Your duplicating data in the database (the season number and the image url). You should consider moving the image urls to another table with a relationship to the season number.
The reason you are getting multiple values even though you are using distinct is the Distinct method does not know what "equal" is for TVSerial.
You can use Distinct with IEqualityComparer.
https://msdn.microsoft.com/en-us/library/vstudio/bb338049(v=vs.100).aspx
Distinct is not guaranteed to on custom objects it doesn't know what to compare. I have used this SO in the past to make my custom object work with Distinct.
Creating a distinct list of custom type in C#