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Unable to get Vertical ScrollBar for a Combo [message #1850130]

Thu, 17 February 2022 07:52

Rajesh Nair

Messages: 1
Registered: February 2022

Junior Member

I am using a standard SWT Combo widget.

The data shown in this Combo could be large in number. So I am trying to display 500 results initially, and I intend to dynamically load more values from the server, when the user drags down the Vertical ScrollBar for the Combo.
The idea is to add a SelectionListener to the ScrollBar for this purpose.

But I notice that even when the Vertical ScrollBar is being displayed for the Combo, the getVeriticalBar() call always returns a null value. Is this a bug?

Call being made:
ScrollBar verticalScrollBar = combo.getVerticalBar();

Thanks for any inputs/pointers on how to solve this issue.

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Re: Unable to get Vertical ScrollBar for a Combo [message #1850170 is a reply to message #1850130]

Sat, 19 February 2022 04:59

Martin J

Messages: 50
Registered: August 2015

Member

I think the scrollbar you try to get is not part of Combo. It may be something like dynamically created popup menu.

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