vb.net - Check proxy's from listbox

Question

So i have a listbox that i have there for a list of proxies. I have 4 buttons pertaining to it. they are find, load, save and check

I have the first 3 finished and working but i haven't found anything useful pertaining to checking the proxies, the only one that i found took like 6 seconds per proxy so it took a lot of time for a decent sized list.

So how could i make it that on the press of that button, it checks all of the proxies in the listbox and it deletes the slow ones and the ones that flat out do not work. and does this at a decent pace(so it would probably be multi threaded)

and since i can not figure this out i have no code pertaining to this except for the sub for the button click i do not feel there is a need to post code

Answer 1

My suggestion for you is :

1)use a timer control and set it's Tick property to an appropriate value such 500;

2) create an array of BackGroudWorkers for example BackGroudWorker[20];

3)when your app start run all BackGroudWorkers in array and in tick event of Timer check if any of this BackGroudWorker completed or not.If completed and you have other item in list then run it with new Item.Do this until all list Items checked