DevForce Help Reference
Saved Event
Example 


Occurs after the EntityManager has persisted changed entities.
Syntax
'Declaration
 
Public Event Saved As EventHandler(Of EntitySavedEventArgs)
'Usage
 
Dim instance As EntityManager
Dim handler As EventHandler(Of EntitySavedEventArgs)
 
AddHandler instance.Saved, handler
Event Data

The event handler receives an argument of type EntitySavedEventArgs containing data related to this event. The following EntitySavedEventArgs properties provide information specific to this event.

PropertyDescription
Cancelled Returns whether the operation was cancelled. (Inherited from IdeaBlade.EntityModel.CompletedEventArgs)
CompletedSuccessfully Returns whether the operation completed successfully. (Inherited from IdeaBlade.EntityModel.CompletedEventArgs)
CompletedSynchronously Returns whether the operation was completed synchronously. (Inherited from IdeaBlade.EntityModel.CompletedEventArgs)
Entities List of entities saved.  
Error The exception, if any, thrown by the underlying operation. (Inherited from IdeaBlade.EntityModel.CompletedEventArgs)
HasError Returns whether the operation failed. (Inherited from IdeaBlade.EntityModel.CompletedEventArgs)
IsCompleted Returns whether the operation completed. (Inherited from IdeaBlade.EntityModel.CompletedEventArgs)
IsErrorHandled Whether the Error was handled ( if one exists). (Inherited from IdeaBlade.EntityModel.CompletedEventArgs)
SaveResult The SaveResult for the operation.  
Remarks
The EntitySavedEventArgs.Entities list contains the entities saved to the data source. See the DevForce Developer's Guide for more information on the life cycle of a save.
Example
public void EntityManager_EventSample() {

  var mgr = new DomainModelEntityManager();
  // Setup some handlers.
  mgr.Querying += QueryingHandler;
  mgr.Fetching += FetchingHandler;
  mgr.Queried += QueriedHandler;
  mgr.Saving += SavingHandler;
  mgr.Saved += SavedHandler;

  // Now try some fetches and saves.

  var orders = mgr.OrderSummaries
    .Where(o => o.Customer.Id == 1)
    .Include("Customer")
    .Include("OrderDetails").ToList();
  DebugFns.WriteLine("Order count = " + orders.Count.ToString());

  // Change the first order and its details.
  OrderSummary anOrder = orders[0];
  anOrder.Freight = 200;
  foreach (OrderDetail dtl in anOrder.OrderDetails) {
    dtl.Discount = .05F;
  }
  mgr.SaveChanges();
}

void QueryingHandler(object sender, EntityQueryingEventArgs e) {
  DebugFns.WriteLine("Querying " + e.Query.ToString());
}

void FetchingHandler(object sender, EntityFetchingEventArgs e) {
  DebugFns.WriteLine("Fetching " + e.Query.ToString());
}

void QueriedHandler(object sender, EntityQueriedEventArgs e) {
  DebugFns.WriteLine("Queried " + e.Query.ToString());
  foreach (Entity anEntity in e.Results) {
    DebugFns.WriteLine("Queried - " + anEntity.EntityKey.ToString());
  }
}

void SavingHandler(object sender, EntitySavingEventArgs e) {
  foreach (Entity anEntity in e.Entities) {
    DebugFns.WriteLine("Saving - " + anEntity.EntityKey.ToString() + " - " + anEntity.EntityState.ToString());
  }
}
void SavedHandler(object sender, EntitySavedEventArgs e) {
  foreach (Entity anEntity in e.Entities) {
    DebugFns.WriteLine("Saved - " + anEntity.EntityKey.ToString());
  }
}
Requirements

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

See Also

Reference

EntityManager Class
EntityManager Members

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