So basically you want to load an image from disk ?
In that case you need the path to the file, be it relative or absolute. (Check
here[
^])
With that URI you can load a normal image (bmp, jpeg, gif, ...) into the picture box.
Check the
Image[
^] class or the
Bitmap[
^] class to load the image in memory.
Finally you can attach the image to the
PictureBox[
^] control.
Hope this helps.