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i'm using CrystalReportViewer control from standart C# and his export option. After i export my report and i return to my application i get a error message because he cannot find my acces_file.mdb
what to do??
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In Asyn Callback if some error happens and it enters into a infinite loop then all other calls will be hanged or these request will get result.
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Question?
modified 12-Sep-18 21:01pm.
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hi
i m writing code for a Client/Server mechanism, here many users can connected and get some data. Now in some connection there might be some errors and that particular asyn call may enter in a infinite loop. So in this case the other users connected are able to make request and get data or server will stop responding to them also.
Thanks in advance.
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If you don't create a seperate thread for all your incoming connections then an infinite loop will hang your entire program.
But even if there's some errors in the data your application should never, under any circumstances, fall into an infinite loop. Also not, when it uses multiple threads. Try to handle this error so your app won't create and infinite loop, check the incoming data for errors etc.
regards
modified 12-Sep-18 21:01pm.
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I think you are asking:
"In Asyn Callback if some error happens and it enters into a infinite loop then will all other calls will be hanged or will these requests be processed?".
I beleve the answer is that they will hang.
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Hi
As per ur believe it will hang and it is really so. So now how can i achieve this. Say in ATM a user comes and checks his balance now if there is some error in server them it is particular for that request all other users are not affected.
My requirement is same the if a asyn call enters into infinite loop it should be for that call only not for all the subsequent request.
thanks in advance
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Create a Thread for each incoming connection, you may want to use a ThreadPool for this. But see my answer above, don't let your app fall into a infinite loop at all!
regards
modified 12-Sep-18 21:01pm.
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How can i add password to a pdf file in C#.
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Hello
This depends on the library -if any- you are using. No classes in C# deals directly with pdf files.
Regards
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hi
Do CodeProject has some example of writing pdf with passsword protection.
pls guide me with some examples to how to get this done.
thanks in advance.
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You won't find examples for "writing pdf with passsword protection" straightforward. Searching for that won't get you anywhere. What you are looking for is a pdf writing library. Some commercial libraries are out there. As I told you, search CodeProject's articles areas for "pdf", or google for "pdf C# library". That might get you closer.
PS.
Elcomsoft has a program called Advanced PDF password recovery by the way. So, if your documents isn't that value, don't make the effort. Good luck!
Regards
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Hi,
I have an ArrayList which was populated by a text file with no column headers. What I want to do is split the ArrayList into columns then display it in a datagrid. The ArrayList is made up of lines such as
0168EH1X.PA0 020 1 GRA_ 08/14/06 12:16:42
I need to split this into 5 columns under the headings ID, Duration, Status, Channel and DateTime.
I've been trying to do this with the .SubString method but no luck. I know how to define the columns in the grid but I can't split the ArrayList up. Please can anyone help?
Thanks
Scott
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Hello
Is your ArrayList an array of strings each on the above format?
Regards
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Hi,
Yes, it is. Anywhere between 10 and 150 strings. The format for each string is identical.
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scotlandc wrote: 0168EH1X.PA0 020 1 GRA_ 08/14/06 12:16:42
I need to split this into 5 columns under the headings ID, Duration, Status, Channel and DateTime.
Simple! use
MyArrayList[X].ToString().Split(' ');
to get an array of strings of each column.
Regards
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Thank you very much, will give it a go.
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How to minimize my program in system tray.
To have contextMenu and icon in systray.
Heeeeeeeeeeeelp.
Vasildb
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Vasildb wrote: Heeeeeeeeeeeelp.
I think that the 'e' must be sticking on your keyboard.
I needed to do this recently myself and rather radically I did a search for it on Google.
To save you spending valuable seconds doing the same, here is the url that I found.
http://www.codeguru.com/csharp/.net/net_general/tipstricks/article.php/c6933/[^]
regards
Alex
PS you should try Google sometime it's surprisingly useful!
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hi,
i was wondering how i can use fast keys in my app
i have a menu and i want to be able to use the ctrl key to open and use elements of it
anybody any ideas?
thx
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Use the & symbol before the letter you miss to be used
&File = Alt+F
E&xit = Alt+x
only two letters away from being an asset
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Hi !
I have to access USB port using C# .NET 2003 and framework is 1.1 to read/send data from device.
i Know to access the namespace but
using system.io.port
but it works in net.2005 only how can i ?
i don't used the "mscomm" also
i want use the API's
plz send sample code for that
it's very usefulll for me
Thanks
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Hello
1- Call CreateFile() and supply it with the name of the port
2- make a FileStream object and give the constructor the handle returned from the above call
3- Use the stream to read/write data from the port.
Regards
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Hi Thanks
Iam new to using win32 API for serial communication.
Plz help me
I want to send one string("Hello") to COM port
port is COM2
baud rate 9600
parity None
Data bit 8
Stop bit 2
Now I want write program in C#.net 2003 and framework1.1
Plz give me a small program for this
It’s more useful in my application
Plz
Thanks
Hi,
Thanks, if u think it's good.
otherwise sorry.
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