Redraw issue on Windows10 with DoubleBuffering and FormBorderStyle.None
问题 I have an issue with a Windows Forms project, which I can reproduce only on Windows 10 machine (on Windows 7 it does work). I think that I could isolate the source of issue, namely, if I switch double buffering on and set FormBorderStyle to None , then if I resize the form e.g. in an event handler, the parts of background and some controls being not redrawn. It is also so, that sometimes it works(one time from five). Not redrawn it looks so(often a bit different): and so it should looks like: