如何使用C＃从列表中读取并打印元素？

Question

I have a list which consists of different bitmap images as elements. My question is how can I see the content of my list?

Answer 1

If you just want to see the elements in your list while debugging, either just check the number of elements in the list, or use a Visualizer that actually shows the image.

The demand for a Bitmap/Image-Visualizer is quite common: Here's a ready-to-go VS Extension that provides one or write one yourself (it's actually not that hard).

Example screenshot:

Answer 2

You can check Count property then iterate over the images in your list like this:

if(list1.Count > 0)
{
    foreach(var img in list1)
    {
        pictureBox3.Image = img;
        await Task.Delay(10); // wait 10 millisecond asynchronously
    }
}

Note: In order to use await , you need to make your method async .See the documentation .