Question Stop an application looking like it has crashed?

[Cobalt]

Hello all,

I have a vb app that accesses a network drive and deletes some folders if certain things are true. At the moment if one of the folders is very large or there is a network delay the app seems to freeze and looks like it has crashed.

I already have a "progress form" popup which has a multi line text box which gets populated with event info. This form is made visable before the network work begins but again seems to crash, only updating/being select and scroll-able when all the network tasks are complete.

Is there a nice way for me app to be selectable while it is working, or at least not white out completely when it hits a delay?

Also, could some one post the function/code I should research to disable a folder share on a network location?

Many thanks in advance for any help that can be given.

 

[JohnH]

It is called "multi-threading", read some about it. An easy route is to use the BackgroundWorker component found in the Toolbox.

 

[Cobalt]

Thanks for the point in the right direction John, I didn't know my terminology!

For anyone who stubles accross this thread I would highly recommend this tutorial as a great one to start. Nice and slow, but clearly showing how it works allowing the user to take the lessons learnt and use then in loads of different situations.

Anyway, I have'nt finished it all yet, but the first few pages got me programatically further than a million other google hits and MS help pages!

Linky - http://www.devcity.net/Articles/352/1/article.aspx

 

[VB.Newbie]

Similar Question

Let's say I wanted to run code which takes roughly 45 seconds. During this 45 seconds I want a list of progress ouputs dumped into a list box on the current form, not on a different form as in the example from the previous link. And of course do this without giving me a blank list box until the end.

Any suggestions?

Thanks

 

[JohnH]

Let's say I wanted to run code which takes roughly 45 seconds. During this 45 seconds I want a list of progress ouputs dumped into a list box on the current form, not on a different form as in the example from the previous link. And of course do this without giving me a blank list box until the end.

Any suggestions?

Thanks

Your case is no different, learn multithreading, start with learning BackGroundWorker component.

 

[Cobalt]

I agree, in the end I moved away from the new progress window and used a listbox built into the main form itself.

The background worker was very easy to work with once I understood the concept (especially getting around the fact that the Worker cannot nativly access elements on the main form).

I will post some examples when I'm back in work if it would help?

The tutorial linked above should really be checked out, should cover off your question quite well.

Cheers