Comments by MatthysDT (Top 33 by date)

I should have known there'd be a comment about my "100% secure" server, I deserve that. My question (in theory) still stands though.

Thanks for the comment. Physically, the server is 100% secure and there are no concerns in that department. The client will be an iOS application. The client-server communication will occur over HTTPS, should I still encrypt the files? My question is more theoretical in nature, I want to know, can such files, theoretically, be accessed by someone who doesn't know what the file names are? Assuming that both the server and clients are physically secure.

Thanks Sergey. You are going to be terribly disappointed in me, but due to deadlines and other time-constraints I solved this with reflection. It's not pretty, but it works. Hopefully I'll have time again to revisit your solution within the next two weeks.

Hi Sergey

When I read your solution I thought I understood it, but I'm only getting to the implementation of it today, and I'm having a hard time.

In your example above, where would the file for "abstract class PluginEventArgs" be located, and how should I reference it in both my main project and my plugin?

Must it be an abstract class, or can it also be an interface?

Thank you SA, couldn't have asked for a better response!

Hi Wes Aday, like I said, there is no such class (MyCustomEventArgs) in my project since the DLL (whic does have that class) is referenced using late binding. Then you may ask why don't I just create such a class? I could, but if possible this project must be generic for different types of DLL's, but I will resort to that option if all else fails.

Hi rgonzruiz, thanks, that's actually quite useful and I think it's relevant to the topic, albeit 2 years old. I will refer back here when next I create a service and and want the recovery attributes set programmatically during installation. Regards

I don't have UI element in this project. I declare the PrintServer object globally in my PrintHostClass and instantiate it in the constructor.
PrintServer is a .Net class in System.Printing
(C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\v3.0\System.Printing.dll)

I'm beginning to think that that class is not thread safe.

If I declare the PrintServer (_hostingServer) within the CheckHost() method, I don't get the same error, but this is not ideal.

If I discard the BackgroudWorker and run _ph.CheckHost within the Timer_Elapsed event of a System.Timers.Timer, I get the exact same issue, eventhough I'm no longer using threading.

Thank you Shameel, I'm new to Threading, on which object should I check the InvokeRequired property?

Thank you.
Like I mentioned earlier, that I had an instance where that field was correct according to my timezone without my tampering, so at this stage I don't trust it enough to use it at all. Could be paranoia and there is probably a good explanation, but I'd rather populate and use a custom field.

Thank you!
I'll check out and try implementing that pattern 1st thing tomorrow and get back to you ASAP!

Thank you.
I want to add my own TimeJobSubmitted field since the one I get is offset by 2 hours, I expect this is because it send me the GMT DateTime, I have no idea why. And I don't like hardcoding the GMT+2 for my timezone. And to add to this, at one stage, the DateTime actually came through as GMT+2 without me changing any code that should have affected it, so at this stage I do not trust the value of that field and would like to add my own.

If I can't inherit, I'll create a class that instantiates the PrintSystemJobInfo object, it's just more cumbersome to work with.

Well, best way to describe what I mean is by code. The following code is in a Stored Procedure on the DB:

DECLARE rst CURSOR LOCAL
FOR
SELECT a.field, b.field, c.field from myATable a
join.... -- join for myBTable
join.... -- join for myCTable
join.... etc
WHERE..... AND.... AND....
ORDER BY........ --(get the picture?)
OPEN rst
FETCH NEXT FROM rst INTO @a, @b, @c
WHILE (@@fetch_status = 0)
BEGIN
Print @a + @c + @b
FETCH NEXT FROM rst INTO @a, @b, @c
END

In this example, would it be faster to create a table variable, say, myABCTable and populate it with the required data, and use @myABCTable in the record set instead of the DB directly. (This means all WHERE clauses and JOINS are moved out of the record set's select)

I avoid sub-queries where possible and try to make all queries work with JOINS instead.

Thanks!

Thanks for your edit. ""Lastly, I asked the system guys here where I work, and they said they aren't aware of any way to restrict a VPN connection to a single application."" - this is what I was looking for, something to tell me that it probably can't be done.

As for my vote, my apologies, I acted om impulse, but for this reason: My question is long-winding and very specific, I'd rather have no answer at all than someone half-reading it, "Googling" for an answer and then have the audacity to say "Google is your friend" implying that I didn't search for this at all. Ideally I would have liked to discuss this with someone who have worked with PPTP connections before, as I'm sure there are many such people here. As Espen Harlinn mentioned, the number of possible solutions are mind boggling, and THOSE are the solutions I wish to discuss!

True, your answer doesn't merit a uni-vote, your attitude and "Google" comment however, does. If "Google is your friend" is in some way your signature to all posts, please accept my sincere apologies.

Thanks, will check this out. Will I be able to control access to this connection? I.e. the rest of the client PC shouldn't be able to access that connection. I want to connect the application only. If it were as simple as establishing a VPN connection I wouldn't have posted it here.

Thank you, that covers spelling. Any suggestions for AutoCorrect? E.g, changing "DOg" to "Dog"?
Your second link is forbidden, but I'll search for the article in CP.

Thank you ARopo, following your instructions, it basically points to my VB6 DLL, which works fine on my system.
Another point worth mentioning, this very same DLL referenced by our old software (not .Net) on the very same PC, works fine. So I'm pretty sure the DLL doesn't crash internally.

All DLL's are registered using regsvr32.exe

Simple, just don't run your code on the last line. So if the row index = DatagridView1.NewRowIndex don't format it.

Reason for my vote of 5
great reference

Thanks, that article was very helpful. Unfortunately, that project also prints random documents with the DocumentName as "Local Downlevel Document". So, now I'm no longer dependent on Adobe, so at least I've made some progress!

Reason for my vote of 1
bad answer

Reason for my vote of 1
bad answer, READ the question!

My question wasn't WHY, it was HOW.
But anyway, here's WHY!
Our software displays the optimal amount of rows so that they don't have to scroll, this depends on the user's resolution and the size of the main window and the current sub-window of our application.

Thank you, you've been a great help.
The stress test proved that the code is sound, no more IO access errors! Learned a lot today!
Cheers!

Reason for my vote of 5
Great answer!