第一次点击为展开,再次点击时无法收回。 
Activity
ghost1372 commentedon Dec 4, 2020
ghost1372 commentedon Dec 4, 2020
closed by e4faef3
ghost1372 commentedon Dec 4, 2020
@NaBian
oh there is a new problem now We receive an error when the item is selected
There is no problem with the ItemSource

NaBian commentedon Dec 4, 2020
there is an other new problem, when the popup is opened, it can not be closed by clicking on the blank area
NaBian commentedon Dec 4, 2020
I've spent an hour solving the problem, bad result as last, I' m tired and need to sleep
ghost1372 commentedon Jan 31, 2021
@NaBian issue fixed after 667465a
but this issue exist
NaBian commentedon Jan 31, 2021
drop down checkcombobox then keep it open finally drag the window, aha a new bug!
ghost1372 commentedon Feb 1, 2021
@NaBian
drop down issue fixed but
without binding not work
NaBian commentedon Feb 3, 2021
done in 2b1973f
ghost1372 commentedon Feb 3, 2021
@NaBian Did you try?
Because I get the same result as before
NaBian commentedon Feb 3, 2021
of course

ghost1372 commentedon Feb 3, 2021
your fix not worked for me i changed your if statement != to == and worked!😶
NaBian commentedon Feb 3, 2021
what? why?
ghost1372 commentedon Feb 3, 2021
NaBian commentedon Feb 3, 2021
😭
ghost1372 commentedon Feb 3, 2021
@NaBian This is very strange
I tested on a new project, there is no problem worked fine
But there is a problem in the demo project
fixed HandyOrg#456