CODEWITHSUNDEEP
entity-framework
David
David

Reputation: 1293

Entity Framework - SaveChanges not reflected in database

SaveChanges is not being reflected in the database

I have the following code

public async Task<int> Post([FromBody] UserEntry userEntry)
{
    UserEntry dbUserEntry;

    using (DBContext db = new DBContext())
    {
      // update
      dbUserEntry = this.db.UserEntries
                     .Where(u => u.UserEntryID == userEntry.UserEntryID)
                     .Include(u => u.EntryPlayers.Select(y => y.Player))
                     .FirstOrDefault();

      dbUserEntry.TeamName = userEntry.TeamName;
      dbUserEntry.EntryPlayers = userEntry.EntryPlayers;

      //db.Entry(dbUserEntry).State = EntityState.Modified;
      return db.SaveChanges();
    }

}

I read somewhere that I need to set the state to modified but if I uncomment the line

//db.Entry(dbUserEntry).State = EntityState.Modified;

I get the error:-

An entity object cannot be referenced by multiple instances of IEntityChangeTracker.

Any ideas on how I can get SaveChanges to work?

Upvotes: 0

Views: 101

Answers (1)

Siby Thomas
Siby Thomas

Reputation: 81

Use Find() method instead of FirstOrDefault()

dbUserEntry = this.db.UserEntries
                 .Include(u => u.EntryPlayers.Select(y => y.Player))
                 .Find(u => u.UserEntryID == userEntry.UserEntryID)

Upvotes: 1

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