How to make picturebox transparent when it comes above another image

Question

I am making an application in C#.NET with Visual Studio 2012.

I have a picture in my background form. I have several picture boxes on it. I used .png images with transparent background but in my form it is not transparent when it comes above another image.

Answer 1

Set your picture box back color property to transparent.

pictureBoxTest.BackColor = Color.Transparent;

To further explain, an image with a transparent background will inherit the picture box's background color. You need to set the color to transparent as well to ensure it truly is.