How do you access the name of the image in a picturebox in Visual Studio using C#

Question

I have a program which has 16 grid tiles using picturebox but only uses 5 images, the rest of the tiles are just a black image.

I would like to be able to tell which

Answer 1

Use PictureBox.Load(string) method to load images from file. Then the file path will be stored in the PictureBox.ImageLocation property:

A call to the Load method will overwrite the ImageLocation property, setting ImageLocation to the URL value specified in the method call.

So you can write for example:

if (peckedSquare.ImageLocation.EndsWith("pigeon1.png"))
{
    System.Diagnostics.Debug.WriteLine("Pecked Pigeon number 1");
}