public virtual void Refresh()
{
Guid[] downlist;
if (DbSet.Count() == 0)
{
downlist = EntityContext.GetKeys(DateTime.MinValue);
}
else
{
downlist = EntityContext.GetKeys(DbSet.Max(t => t.UpdateTime));
}
foreach (var index in downlist)
{
if (IsCached(index))
{
DbContext.Entry <TEntity>(EntityContext.GetEntity(index)).State = EntityState.Modified;
}
else
{
DbSet.Add(EntityContext.GetEntity(index));
}
}
var removelist = DbSet.Select(t => t.Index).ToList().Except(GetKeys());
foreach (var index in removelist)
{
DbContext.Database.ExecuteSqlCommand("DELETE FROM " + TableName + " WHERE [BaseIndex] = {0}", index);
}
DbContext.SaveChanges();
}
