[Solved] RadTreeView nesting inside RadCombobox is exceeding the screen space

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Sunil
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Sunil asked on 20 Feb 2026, 04:27 AM | edited on 20 Feb 2026, 07:41 AM

Hi , 

We have client facing issue where the RadTreeView control nested under RadComboBox is exceeding the popup space and having a page scroll how can i restrict it ?   Also  RadTreeview Nested under is not detecting the screen boundary and expanding the direction

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Vasko
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answered on 23 Feb 2026, 06:17 AM

Hello Sunil,

Generally the width of the DropDown of the ComboBox depends on the amount of contentyou put in it. If you wish to to have a DropDown with a TreeView in it that does not exceed any space and does not display a scrollbar, I would suggest taking a look at the DropDownTree alternative we have. That should be the best control to use in your situation. 

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Vasko
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