Using viewModel error: Cannot implicitly convert type

Luis Alberto Delgado de la Flor

9y10.2k.NET

Hello,

Direct error. I have a ViewModel class called StoreLocationViewModel. Here is the definition.

  public class StoreLocationViewModel  

{

public Store Stores { get; set; }  

public List Departments { get; set; }  

}

Inside the Controller I'm trying to initialize the ViewModel

public async Task Index()
{
var viewModel = new StoreLocationViewModel();
viewModel.Stores = _context.Stores;

However I get this error:

Cannot implicitly convert type 'Microsoft.EntityFrameworkCore.DbSet' into 'Applications.Models.Store'.

This is the first time encountering this error and it's too specific in order to find documentation online. Can someone please explain me what does it mean?. Thanks in advance!

3 Replies

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Luis Alberto Delgado de la Flor9y ago
Hello,

_Answer

I followed this whole procedure:

https://docs.microsoft.com/en-us/aspnet/core/data/ef-mvc/read-related-data

Finally, the code was updated to this:
viewModel.Stores = await _context.Stores.AsNoTracking().ToListAsync();
No errors up to this point. Thanks!
Closing thread.
Luis Alberto Delgado de la Flor9y ago
Hello Ramesh,

Sorry, my mistake. The error is not in Application vs Applications. It was my mistake typing.

This is the message error:

Cannot implicitly convert type 'Microsoft.EntityFrameworkCore.DbSet<Application.Models.Store>' into 'Application.Models.Store'.

What is different between them is all this ''Microsoft.EntityFrameworkCore.DbSet'

EDIT_

What I understand is that _context.Sores belongs to my EF, but my ViewModel does not. But I don't think it would be correct to add ViewModel to my EF so the type of entities match, am I right?

Thanks
Ramesh Barik9y ago
Cannot implicitly convert type 'Microsoft.EntityFrameworkCore.DbSet<Application.Models.Store>' into 'Applications.Models.Store'.
Application.Models.Store and Applications.Models.Store are two differnet type of entity which you try to handsahke each other.
So check you DBSet properties in EF.