qt - expanding widgets inside a Qtabwidget -


why widgets inside qtabwidget don't resize?

all widgets resize except ones inside tabs, tabs resize, not items inside it.

is because of type of layout show in figure?

enter image description here

i can's assign layout it. before , after maximizing window.

enter image description here

enter image description here

why can't assign layout it? have give each tab layout. drag widget tab. select tab, not widget, click on 1 of layouts in top row of designer. widget fill whole tab , resize nicely.


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