takeTopLevelItem - removing last row from treeWidget & app crash

[produktdotestow]

hi.

i have some problem. why removing last row from treeWidget using takeTopLevelItem() make app crash? if i want to remove different items everything it's OK. problem occurs only in this case.

thanks in advance for help.

[produktdotestow]

nevermind, problem is solved. in another function I was trying to change label text to currently checked row from treeWidget, but treeWidget was empty. sorry for the problem