private void GenericUpdateEntityCollection <T>(EntityCollection <T> collection, ObjectContext dbContext) where T : EntityObject, new()
{
int count = collection.Count();
int current = 0;
List <T> collectionItemList = collection.ToList();
bool isAdded = false;
while (current < count)
{
Object obj = null;
dbContext.TryGetObjectByKey(collectionItemList[current].EntityKey, out obj);
if (obj == null)
{
obj = new AgentAirlineMappings();
((T)obj).EntityKey = collectionItemList[current].EntityKey;
dbContext.AddObject(((T)obj).EntityKey.EntitySetName, obj);
dbContext.TryGetObjectByKey(collectionItemList[current].EntityKey, out obj);
dbContext.ObjectStateManager.ChangeObjectState(obj, System.Data.EntityState.Modified);
collection.CreateSourceQuery().Context.ObjectStateManager.ChangeObjectState(collectionItemList[current], System.Data.EntityState.Modified);
isAdded = true;
}
if (obj != null)
{
dbContext.ApplyCurrentValues <T>(((T)obj).EntityKey.EntitySetName, collectionItemList[current]);
if (isAdded)
{
dbContext.ObjectStateManager.ChangeObjectState(obj, System.Data.EntityState.Added);
collection.CreateSourceQuery().Context.ObjectStateManager.ChangeObjectState(collectionItemList[current], System.Data.EntityState.Added);
}
}
current++;
}
}
public static ObjectQuery <T> CreateSourceQuery <T>(this ICollection <T> iCollection) where T : class
{
EntityCollection <T> entityCollection = iCollection as EntityCollection <T>;
if (entityCollection == null)
{
throw new ArgumentNullException();
}
return(entityCollection.CreateSourceQuery());
}