I have an application in wcf with dualHttp Is there a way to know if the server is shutting down suddnly unexpectidly like if some one do a restart? Is there a way for the server to knmow if the same thing for the server to know if the client shuts down unexpectedly?

I have to write an application theat reads big files performs some processing on there data like XOR on a some section in it each section is a few maga bytes and then save them to A new file waht should i do in order to achive max performance? shoul i read a few sections eaach time and process and append them to the new file or one section each time? there are several threads that do this proces on several different files at the same time? sample code will be great help Thnks

I have to write an application that read a file and performs some action on it.. The file can be quite be so i have to read Xsome bytes at a time and perform the action on it... How many nbytes recommended to read in order to achive max performance? Thnaks

Is there a way to allocate disk space before copying a file in c#? sample code will be greate help Thanks

In my company there aare many computers that uase a software i wrote. This software uses the registry and uses and crates fileson the client computer. Sometimes i have to update my software after fixing some bugs.. 1. does click once is sutible fot this senario of updating tge cliebnts? 2. if there are 2 seperate environmets for develop and production. is there a way to create the deployment website of click once without the studio? by msi maybe that creates the erbsite on a deployment serve)? Sample code will be greate help thanks...

modified on Saturday, March 1, 2008 10:38 AM

how secure is the key container? are there a better solution? any artickle on the matter will be great help

I need to write an application in c# 2003 that is a window service that hosts a remoting object of type singelton. Is there anyway to notify the service (the host) when a message from the client arrives to the remote object sample code will be greate help than

Im writing a windows service in c# vs2003 that does a lot of io on file reading files writeing files and more the problem is the performance of the program is not so good 1. can some opne direct me to material about io best practices 2. is there free tools to analyse the code so i can track the problematic portion of the code thanks

is there a way to call thread.join to thread from the threadpool?

I need a problem in an application im writing: In my app there is a class User [serializable] Class User { public string _name; public int _id; } i create an instance of this class in memory. I haev a file in my file system that the the xml represemnatation of this class has to be the header of the file (without changing the original file) how can i combine the xml user class and the file in the most correct and eficiant manner - combinig them in memory to a stram or byte array. How can i do taht in teh most correct and eficiant manner? Sample code will be great Thanks

I problem in an application im writing: In my app there is a class User [serializable] Class User { public string _name; public int _id; } i create an instance of this class in memory. I haev a file in my file system that the the xml represemnatation of this class has to be the header of the file (without changing the original file) how can i combine the xml user class and the file in the most correct and eficiant manner - combinig them in memory to a stram or byte array. How can i do taht in teh most correct and eficiant manner? Sample code will be great Thanks

Im writing a c# appliction that makes use of threading.timer. According to the msdn i can specify a period The time interval between invocations of callback , Does this means the timer will not t\ck until i finish handeling the tick event? I tried it out and I got two threads in the callback method… how can I solve this? Im using only one timer so there is no problem of more than one timer . Sample code will be greate help thanks

Mire over i have 2 begin peek because i have to continue waiting for a message one begin peek is in call if no exception and the other if an exception happen so they will never happen at the same time

yhanks for the I dont understnd what you mean can you pleas wexplain again

I am writeing windows service that makes use in MSMQ in .net 2003 in c#. I user the method beginPeek(TimeSpan) and waiting for an message to arrive the event handler look like this: private void MyPeekCompleted(Object source, PeekCompletedEventArgs asyncResult) { try { // End the asynchronous peek operation. Message m = _mq.EndPeek(asyncResult.AsyncResult); //logic to handel message mq.BeginPeek(new TimeSpan(0,1,0)); } catch(MessageQueueException e) { if (e.MessageQueueErrorCode == MessageQueueErrorCode.IOTimeout) { Console.WriteLine(e.ToString()); } _mq.BeginPeek(new TimeSpan(0,1,0)); } catch(Exception ex) { // some code to handel error } after a while i get stackoverflow exception. event though no message arrives... It works fike for a couple of minuts and than crushes.. How can i solve this.. Sample code will be greate help.. im using winXP Thnks

I am writeing windows service that makes use of MSMQ in .net 2003 in c#. I use the method beginPeek(TimeSpan) and wating for an message to arrive the event handler look like this: private void MyPeekCompleted(Object source, PeekCompletedEventArgs asyncResult) { try { // End the asynchronous peek operation. Message m = _mq.EndPeek(asyncResult.AsyncResult); //logic to handel message mq.BeginPeek(new TimeSpan(0,1,0)); } catch(MessageQueueException e) { if (e.MessageQueueErrorCode == MessageQueueErrorCode.IOTimeout) { Console.WriteLine(e.ToString()); } _mq.BeginPeek(new TimeSpan(0,1,0)); } catch(Exception ex) { // some code to handel error } after a while i get stackoverflow exception. event though no messages arrives... It works fike for a couple of minuts and than crushes.. How can i solve this.. Sample code will be greate help.. im using winXP Thnks

Im trying to delete a file from windows service in c# file delete or fileinfo.delete and get Access to the path X is denied how can i solve this? Samele code will be greate help thanks