public async Task <TKey> Insert(TEntity entity)
{
if (entity == null)
{
throw new ArgumentNullException("entity");
}
string ip = string.Empty;
entity.IsDeleted = false;
entity.CreatedOn = DateTime.UtcNow;
entity.LastModifiedOn = DateTime.UtcNow;
//entity.LastModifiedBy = GetUserId(out ip);
//entity.CreatedBy = GetUserId(out ip);
entity.UpdatedIp = ip;
Context.Entry(entity).State = EntityState.Added;
await Context.SaveChangesAsync();
return(entity.Id);
}