Entity Framework Refresh context

Question

How could I refresh my context  I have entities based on views from my Database and when I made an update over one table Entity that has navigation properties to views  the entity is update but the view don t refresh accord the new updates   just want to get again from the Db the data  Thanks

User · Answer

context Reload   was not working for me in MVC 4  EF 5 so I did this   context Entry entity  State   EntityState Detached  entity   context Find entity ID     and its working fine

User · Answer

If you want to reload specific entities  with the DbContextApi  RX DID RX already gave you the answer   If you want to reload   refresh all the entities you loaded   If you are using Entity Framework 4 1   EF5  or EF 6 probably   DbContext API   public void RefreshAll          foreach  var entity in ctx ChangeTracker Entries                      entity Reload               If you are using entityFramework 4  ObjectContext API    public void RefreshAll             Get all objects in statemanager with entityKey          context Refresh will throw an exception otherwise       var refreshableObjects    from entry in context ObjectStateManager GetObjectStateEntries EntityState Deleted                                                  EntityState Modified                                                  EntityState Unchanged                                        where entry EntityKey    null                                       select entry Entity         context Refresh RefreshMode StoreWins  refreshableObjects       Best advice anyway is  try to use a  short lived context  and you ll avoid this kind of problems   I wrote a couple of articles on the matter   https   christianarg wordpress com 2013 06 13 entityframework-refreshall-loaded-entities-from-database

User · Answer

Use the Refresh method  context Refresh RefreshMode StoreWins  yourEntity    or in alternative dispose your current context and create a new one

User · Answer

EF 6  In my scenario  Entity Framework was not picking up the newly updated data  The reason might be the data was updated outside of its scope  Refreshing data after fetching resolved my issue   private void RefreshData DBEntity entity        if  entity    null  return         IObjectContextAdapter DbContext  ObjectContext RefreshAsync RefreshMode StoreWins  entity      private void RefreshData List lt DBEntity gt  entities        if  entities    null    entities Count    0  return         IObjectContextAdapter DbContext  ObjectContext RefreshAsync RefreshMode StoreWins  entities

User · Answer

yourContext Entry yourEntity  Reload

User · Answer

Refreshing db context with Reload is not recommended way due to performance loses  It is good enough and the best practice to initialize a new instance of the dbcontext before each operation executed  It also provide you a refreshed up to date context for each operation   using  YourContext ctx   new YourContext           Your operations

User · Answer

I ve made my own head hurt over nothing  The Answer was very simple- I just went back to the basics     some Entities   e2   new some Entities      your entity    add this line below after you update delete - you re re-loading your entity-no fancy system methods   e2   new some Entities      reset

User · Answer

The best way to refresh entities in your context is to dispose your context and create a new one   If you really need to refresh some entity and you are using Code First approach with DbContext class  you can use      public static void ReloadEntity lt TEntity gt           this DbContext context           TEntity entity          where TEntity   class               context Entry entity  Reload            To reload collection navigation properties  you can use      public static void ReloadNavigationProperty lt TEntity  TElement gt           this DbContext context           TEntity entity           Expression lt Func lt TEntity  ICollection lt TElement gt  gt  gt  navigationProperty          where TEntity   class         where TElement   class               context Entry entity  Collection lt TElement gt  navigationProperty  Query            Reference  https   msdn microsoft com en-us library system data entity infrastructure dbentityentry reload v vs 113  aspx M System Data Entity Infrastructure DbEntityEntry Reload

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