Bug? Error in the IDE?

[Filippo]

Hi,

i don't know if it's a bug or not, maybe because i never noticed it before?

Error description:
When deleting an item from the Files Manager, sometimes the error occurs: An error occurred. The height must not be a negative number.

Then the Files-Maneger changes the view, the folder "Default Group" goes from top to bottom.

 

[aeric]

I also facing this before. I thought my project file was corrupted.

 

[Filippo]

I also facing this before. I thought my project file was corrupted.

I can reproduce the error at any time.

 

[MikeH]

Same here. Also, not sure if its related, been having similar issues with layout designer.

 

[Erel]

Bug.

I can reproduce the error at any time.

What are the exact steps?

 

[Filippo]

Bug.

What are the exact steps?

Simply delete the last item.

 

[mcqueccu]

Okay I just reproduced it.
It does not happen when you have fewer items.
When the list is longer with scroll bar, and you delete the last item, that's when it happens.

 

[Paul_]

Not sure if this is related also?

https://www.b4x.com/android/forum/threads/b4j-ide-modules-window-corruption.143951/#post-912740

 

[aeric]

Okay I just reproduced it.
It does not happen when you have fewer items.
When the list is longer with scroll bar, and you delete the last item, that's when it happens.

View attachment 136847

It happened in my B4J when I try to click the "Sync" button in File Manager tab.

 

[aeric]

When I select Close Project from File menu, another error shows.

 

[Erel]

It looks like a bug in a recent update of .Net Framework: https://github.com/dotnet/wpf/issues/7159
I'll implement the suggested workaround.