c# - Make vertical ScrollViewer invisible -


i have scrollviewer control in window , hide when user cannot scroll down page. horizontal scroll viewer. here example:

so here both scrollers visible because scrolling enabled: enter image description here

if collapse of columns of listview note how horizontal scroller disappears: enter image description here

now note happens vertical scroller:

enter image description here

so far visible , that's ok because not content fits in page. let me maximize page , co-lapse group boxes content fits in page:

enter image description here

why visible if not possible scroll? set group boxes height = 0 except last 1 , vertical scroller still shoes up? horizontal scroller disappeared when not possible scroll more. why vertical scroller not behave same way?

what can make invisible when not possible scroll?

make sure scrollviewer's verticalscrollbarvisibility = scrollbarvisibility.auto;


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