使用usermanager编辑用户个人资料图像

Question

I'm following this tutorial to add profile picture once account create.

that edit has following snippet,

Student student = db.Students.Include(s => s.Files).SingleOrDefault(s => s.ID == id);

In above example it applied to table call Student in my case I want to go with AspNetUser table , but then I have to go with UserManger feature , Once I try to Include a file then it popping that error in compile time.

But in my scenario I'm trying to include in AspNetUser or UserManager

So to populate uploaded picture. I need include following code in user manager

var user = await UserManager.Include(s => s.Files).FindByIdAsync(userid);

but then getting following error

'ApplicationUserManager' does not contain a definition for 'Include' and no extension method 'Include' accepting a first argument of type 'ApplicationUserManager'

How to ignore and include files

EDIT:

These are the changes I've done in Model classes

File

public class File
{
    public int FileId { get; set; }
    ..

    public virtual ApplicationUser UserManager { get; set; }
}

FilePath

public class FilePath
{
    public int FilePathId { get; set; }
    ..

    public virtual ApplicationUser UserManager { get; set; }
}

ApplicationUser

public class ApplicationUser : IdentityUser
{
        ....

        public virtual ICollection<File> Files { get; set; }
        public virtual ICollection<FilePath> FilePaths { get; set; }

    public async Task<ClaimsIdentity> GenerateUserIdentityAsync(UserManager<ApplicationUser> manager)
    {
       ....
    }
}

AspNetUser

public partial class AspNetUser
{

    public AspNetUser()
    {
       ..
    }
    ....

    public virtual ICollection<File> Files { get; set; }
    public virtual ICollection<FilePath> FilePaths { get; set; }
}

---

then try to add migration to the project by typing the following into the PMC:

add-migration File

add-migration FilePaths

then getting following error in console

No migrations configuration type was found in the assembly 'Project_Name'. (In Visual Studio you can use the Enable-Migrations command from Package Manager Console to add a migrations configuration).

---

then I typed the following into the PMC:

Enable-Migrations project_name.Models.sampleEntityFrameworkEntities

then I got following error in console

Creating a DbModelBuilder or writing the EDMX from a DbContext created using Database First or Model First is not supported. EDMX can only be obtained from a Code First DbContext created without using an existing DbCompiledModel.

---

then I try to migrate Files and FilesPath using following code

add-migration File

add-migration FilePaths

Get error in console

Creating a DbModelBuilder or writing the EDMX from a DbContext created using Database First or Model First is not supported. EDMX can only be obtained from a Code First DbContext created without using an existing DbCompiledModel.

Answer 1

If I understood you correctly you're trying to follow the guide but using ASP.NET Identity. ASP.NET Identity is a unique system with its own classes and DBContext. In order to add new fields to the user you need to modify ApplicationUser class. Just add your property to this class and apply migration if needed. This will add a new column to the AspNetUser. Then add your field to the ViewModel (if any) and to other logic that is required to work with your field.