Visual studio 2019 picture box icon

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Visual-Studio

C#6.0

I added a picture box, when it is pressed, it opens the files and if you select a photo it shows that photo, but if you select a program it gives an error. If a program is selected, I want the program to show its icon.
They say type bitmap or something, but I haven't seen anyone explaining where to write what else to write.

What I have tried:

I use the following code:

OpenFileDialog File2 = new OpenFileDialog();
            File2.Filter = "All files |";
            File2.ShowDialog();
            string FilePath2 = File2.FileName;
            pictureBox24.Image = Image.FromFile(FilePath2);