[FarosMoloko]

Quick question.

Whenever I loop through a bunch of images, and add them to my listview control from a thread with:

PHP Code


<?php 
Invoke(new Action() => { lvPics.Add()... }; 


It completely freezes the UI for 3-5 seconds. This is because invoking code means running it on the UI thread (I think).

So how would I get around this and add them without freezing the UI thread, and keeping it responsive?

Thanks  🤝

[debug]

You are correct about it freezing because you are running the code on the UI thread. So to get around it, add your add code to to a new thread:

Code

Thread populateList = new Thread(() -> {
     Invoke(new Action() => { lvPics.Add()... };
});
populateList.IsBackground = true;
populateList.SetApartmentState(ApartmentState.STA);
populateList.Start();

Alternatively, you could use a background worker to do the work.

[sdk]

Try this

PHP Code


<?php 
this.Invoke(new Action(() => lvPics.Add(image))); 


[FarosMoloko]

You are correct about it freezing because you are running the code on the UI thread. So to get around it, add your add code to to a new thread:

Code

Thread populateList = new Thread(() -> {
    Invoke(new Action() => { lvPics.Add()... };
});
populateList.IsBackground = true;
populateList.SetApartmentState(ApartmentState.STA);
populateList.Start();

Alternatively, you could use a background worker to do the work.

Fantastic. Is there a way to do this with a Task, as its where im currently calling the invoke.

Thanks!

[He B TeMy]

Using a task the only guaranteed way afaik is this https://stackoverflow.com/a/15957165
Because a task will use the threadpool threads, it won't create new threads.