On Thu, Apr 26, 2012 at 10:44 AM, Sarnam <sarna
...@gmail.com> wrote:
> thanks for reply. but as per my observation the problem is coming due to
> load, because i was doing load testing with 20-30 users hitting search
> query at the same time then i was running fine but when users more than 30
> hitting at same time then this problem is coming and i am pretty sure
> about not passing any null value because i have put if condition like :
> IMongoQuery qry = null;
> if (searchingName.ToLower().Trim() == "id")
> searchingName = "_id";
> int x;
> if (!string.IsNullOrEmpty(searchingValue))
> {
> if (Int32.TryParse(searchingValue, out x) == false ||
> searchingName.ToLower().Trim() == "ipaddress")
> {
> switch (searchingOperator)
> {
> case JqGridSearchOperators.Eq:
> if (!xMLElement.Item1)
> qry = Query.EQ(searchingName, new
> BsonRegularExpression("/^" + searchingValue + "$/i"));
> else
> qry = Query.ElemMatch("FieldList",
> Query.And( Query.EQ("FieldName", subFieldName), Query.EQ("FieldValue", new
> BsonRegularExpression("/^" + searchingValue + "$/i"))));
> break;
> case JqGridSearchOperators.Ne:
> if (!xMLElement.Item1)
> qry = Query.EQ(searchingName, new
> BsonDocument("$not", new BsonRegularExpression("/^" + searchingValue +
> "$/i")));
> else
> qry = Query.ElemMatch("FieldList",
> Query.And(Query.EQ("FieldName", subFieldName), Query.EQ("FieldValue", new
> BsonDocument("$not", new BsonRegularExpression("/^" + searchingValue +
> "$/i")))));
> break;
> case JqGridSearchOperators.Cn:
> if (!xMLElement.Item1)
> qry = Query.Matches(searchingName, new
> BsonRegularExpression(searchingValue, "i"));
> else
> qry = Query.ElemMatch("FieldList",
> Query.And(Query.EQ("FieldName", subFieldName), Query.EQ("FieldValue", new
> BsonRegularExpression(searchingValue, "i"))));
> break;
> }
> }
> else
> {
> switch (searchingOperator)
> {
> case JqGridSearchOperators.Eq:
> qry = Query.EQ(searchingName,x);
> break;
> case JqGridSearchOperators.Ne:
> qry = Query.NE(searchingName,x);
> break;
> case JqGridSearchOperators.Lt:
> qry = Query.LT(searchingName,x );
> break;
> case JqGridSearchOperators.Le:
> qry = Query.LTE(searchingName,x);
> break;
> case JqGridSearchOperators.Gt:
> qry = Query.GT(searchingName,x);
> break;
> case JqGridSearchOperators.Ge:
> qry = Query.GTE(searchingName,x );
> break;
> }
> }
> }
> so it would be great help if you can guide me over this issue.
> Thanks
> Sarnam Singh
> On Thu, Apr 26, 2012 at 6:49 PM, Robert Stam <rob...@10gen.com> wrote:
>> You didn't give much information, but I'm guessing that you called a
>> method in the C# driver with a null argument when a null argument is not
>> valid (hence the error message).
>> For example, the following will give the same error message you are
>> seeing:
>> Query.EQ("x", null);
>> The correct way to write that is:
>> Query.EQ("x", BsonNull.Value);
>> If you look at the stack trace the top few entries should be methods in
>> the C# driver but the first method you find that is in your code is where
>> the error is coming from. If the stack trace has line numbers you'll know
>> exactly what line number the error is on.
>> On Thu, Apr 26, 2012 at 6:22 AM, Sarnam <sarna...@gmail.com> wrote:
>>> Hi,
>>> I am fetching data from mongodb using mongo C# driver based on some
>>> condition. but application behaving randomly. sometimes it give result or
>>> sometimes it throw an error like "Value can not be null". So can any one
>>> help me to fix this problem.
>>> Thanks
>>> Sarnam Singh
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