I am running a C# (2003) app on a Citrix server (Windows 2000, SP4), with SQL
Server 2000 and the database.  Program runs fine, then, without explanation,
a user will attempt to start the app, and get a popup that says "Fatal
Error", no subject to the message, just those words.  ...

I find myself doing things like this all the time:
if (
SomeObject != null &&
SomeObject.AnotherObject != null &&

I have a DataView (dv) that includes a StartDate DateTime column. I'd like to
return the DataView record that contains a StartDate value closest to my
IncidentDate value:
string filter = String.format("StartDate nearest {0}", IncidentDate);

In a RichTextBox, how would I implement...
...bulleted paragraphs like in Word?  Is there a provision for this or am I
on my own?
...spelling check?  Presumably using COM to communicate with Word which is

I am reading a text file with a streamreader.  I parse out path and need to
use that path in a sql statement.  The path is in the file as
\\servername\share\folder\filename.txt.  When the line is read, it is in the
format of \\\\servername\\share\\folder\\filename.txt.  When I ...

I have a client/server application and I'm trying to get the server to
impersonate the client with a delegation token.  In my test on Active
Directory, I have two users, the server user and the client user.  The
server user has 'Account is trusted for delegation' enabled in Active

I´ve a simple question about existing data structures/ collections.
Is there a way to sort a dictionary (or any comparable collection/ data
structure) by values instead of by keys?
For example if you have a dictionary with words as keys and the

Hey guys,
    I have a "TabControl" component on my screen. I'd like to be able to
control the focus of the individual tabs through a different button (which is
working). However, I would like to be able to prevent the individual

If I was to have my biz layer ask the data layer to load a particular object
based on key field info i pass to it, and it cannot create the object
becaues it isnt' in the Db, should the data layer pass back an exception or
a null reference?

I was wondering if it is at all possible to open a chm file from within an
ASP.net application, and if so could you provide a snippet of code that
demonstrates this?
Thanks

I am using the XmlSerializer clas to serialize/deserialize XML files.
I have a XML file containing elements which have attributes of type
float. If the value of the float attribute in my application is for
example 43.5678, after the serialization I get the value

can anyone tell me how server based timer in .net works?
Which one of either system.timers.timer, system.threading.timer is
better for use in windows service.
How worker thread call elapsed event. Will it depend on any of system

The following code:
C# code:  
 Directory.CreateDirectory("D:\\somewhere\\somewhereelse\\here\\")
works, but the following does flags the error:

I'm constructing a class to database access using the
following interface component :
IDBDataAdapter my_i_DataAdapter;
.....

I have written a app that gets emails from a DB and checks if it's a
correct email (connects to the remote mailserver and checks the
response).
I would like to improve the performance with using multiple threads.