public long GetCountByDate(DateTime?startTime, DateTime?endTime)
{
List <FilterDefinition <BsonDocument> > list = new List <FilterDefinition <BsonDocument> >();
if (startTime != null)
{
list.Add(FilterBuilder.Gte("CreateTime", startTime.Value));
}
if (endTime != null)
{
list.Add(FilterBuilder.Lte("CreateTime", endTime.Value));
}
if (list.Count == 0)
{
return(MongoCollection.EstimatedDocumentCount());
}
return(MongoCollection.CountDocuments(FilterBuilder.And(list)));
}