I don't know why my app shows a white background. I didn't set any white background in any form whether it is parent or child. I have tried everything and set every panel back color to transparent but the white color is still there.

Please see the below image where I mark white color in blue marker.

If you have any questions, please add a comment below.

CodePudding user response：

I am facing the issue in parent form where I have some white border but I have never used any borderstyle

Problem solve by removing the shadow from the parent form which is generated at runtime