how to run continuous loop in windows application without affecting the running application

[shasha960]

i am developing a application like ATM. I need a continuous loop that run behind the screen which require authentication. but it should not affect the shown screen. which is the best way to do this. please suggest solution for this. i am waiting...
thanks in advance.....................

 

[Ijack]

Run the authentication loop in a separate thread. As you don't say what language you are using to develop the application it's difficult to be more specific.

 

[shasha960]

Run the authentication loop in a separate thread. As you don't say what language you are using to develop the application it's difficult to be more specific.

sorry for that.. i am using vb.net...

 

[Ijack]

Here's an article telling you how to create a threaded application in VB.net: http://support.microsoft.com/kb/315577

 

[shasha960]

Here's an article telling you how to create a threaded application in VB.net: http://support.microsoft.com/kb/315577

Thanks for this valuable reply. but i create a sample app using the given code in visual studio 2008. it shows a error that "Cross-thread operation not valid: Control 'ProgressBar1' accessed from a thread other than the thread it was created on".

 

[Ijack]

That is a "feature" introduced in newer versions of the .Net framework. Have a look at this thread for the soulution (it's about C#, but the principle is the same):

http://stackoverflow.com/questions/12618575/cross-thread-operation-not-valid-control-label1-accessed-from-a-thread-other

 

[shasha960]

finally i found a solution for me.
to create running watch in application,
i) add a timer, and label in windows form
ii) in form load,
timer1 =new timer
addhandler timer1_tick, Addressof timer1_tick
Timer1.start()
iii) Then double click timer
label1.text=timerofday.


this runs continuously without affecting the other process in windows form.
thank you.....