var cursor = mongoCol.FindAllAs<BsonDocument>()
.SetSkip(currentDataViewInfo.SkipCnt)
.SetLimit(currentDataViewInfo.LimitCnt);

the SkipCnt and LimitCnt is 0.

var dataList = cursor.ToList();
// the Length of datalist is 2;

var CurrentCollectionTotalCnt = (int)mongoCol.Count(); //CurrentCollectionTotalCnt is 1

//Test Record is below

/* 1 */
{
"_id" :

{ "$oid" : "58105ee802f2b624c09971bb" }

,
"loc" :

{ "type" : "Point", "coordinates" : [-73.97, 40.77] }

,
"name" : "Central Park",
"category" : "Parks"
}
/* 2 */
{
"_id" :

{ "$oid" : "58105ef902f2b624c09971bc" }

,
"loc" :

{ "type" : "Point", "coordinates" : [-73.88, 40.78] }

,
"name" : "La Guardia Airport",
"category" : "Airport"
}