Discussion: Camlex not working in WebMethod asp.net 3.5 Sharepoint 2010 about camlex HOT 1 CLOSED

sadomovalex[CodePlex]
hello enbeznos,
could you add try/catch around Camlex call and log exact exception message and stack trace e.g. to text file:
string caml = string.Empty;
try
{
caml = Camlex.Query().Where(x = (string)x[Title] != ).ToString()
}
catch (Exception x)
{
log(Error: {0}\n{1}, x.Message, x.StackTrace);
}

private static void log(string msg, params object[] args)
{
try
{
msg = string.Format(msg, args);
msg = string.Format({0} (thread id: {1})\t{2}\n, DateTime.Now.ToString(yyyy.MM.dd HH:mm:ss), Thread.CurrentThread.ManagedThreadId, msg);
File.AppendAllText(c://temp/log.txt, msg);
}
catch
{
}
}
It may be related with app pool rights because if I remember correctly for working with reflection full trust assembly is needed (it is considered as full trust when you install it to the GAC for example). Also if you need to get items with empty title instead
of x[Title] != you may need to use comparison with null x[Title] != null. In 1st case it will produce the following CAML:
Where
Neq
FieldRef Name=Title /
Value Type=Text/Value
/Neq
/Where
while in second another one:
Where
IsNotNull
FieldRef Name=Title /
/IsNotNull
/Where

from camlex.