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Questions tagged [ui-virtualization]

UI virtualization is a technique for improving the performance of user interfaces which means the visual item generation is deferred until the item is visible.

UI virtualization helps to improve application performance when displaying large datasets.

UI virtualization should not be confused with .

References:

UI virtualization in WPF

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In Blazor when using the Virtualize component with multiple items per row, is there a way to have items stay horizontally consistent when scrolled?

I tried to a list of a thousand items showing several per row, with display: inline-block. The result in Blazor kinda works, but as the user scrolls, it seems to remove items from the DOM at the beginning and add them at the end in an…
Patrick Szalapski
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Animate entry of (only new) elements in a virtualized list

I am using react-window FixedSizedList and react-virtualized-auto-sizer Autosizer components to build a list/table UI element that may contain thousands of items that also receives new items via a websocket connection and prepends them to the list.…
JavascriptLoser
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WPF virtualization not working on windows 2008 server R2 with windows classic theme(aero disabled)

I am running into a weird problem with windows server 2008 R2. I have WPF app which has virtualization enabled (virtualization stack panel and lazy loading for the tree view). It works as exepcted on windows 7 system. However on a windows 2008 R2…
vwpora
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How to implement grouping (expandable groups) with Virtualize component in Blazor?

I have this basic virtualized list where I load items using ItemsProvider:
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Liero
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Cannot change the VirtualizationMode attached property on an ItemsControl after Measure is called on the ItemsHost panel

When i try to set VirtualizationMode on my ListView to Recycling I get the error from the title: Cannot change the VirtualizationMode attached property on an ItemsControl after Measure is called on the ItemsHost panel. I am trying to set the…
Student777
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Virtualization of DataGrid inside ListBox

My layout: Virtualization of outer ListBox works but for inner DataGrid does not. Probably because the outer ListBoxcontains ScrollViewer inside: The ScrollViewer provides a window onto its child content. The problem is that the child content is…
Brains
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How to get virtual Item of databound ListBox?

If I have a list of Cars bound to a ListBox. I now want to implement that the first item is initially focused, additionally I want to implement a full keyboard navigation between the displayed ListBox-items, therefore I need access to the virtually…
codymanix
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Templates are not applied while scrolling

I am using the grid with scroll viewer. I have designed that grid with more no of UI elements.while open that report I rendered only first-page UI elements due to the performance problem.While scrolling, remaining UI elements need to be rendered. My…
Pandi
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WPF based treeview with Hierarchy with Virtualization

I've following requirement while designing UI for application. We have hierarchy as shown below Level1 Level2.1 Level3 1000Thumbnails..... (inside Wrap Panel which is inside ListBox) Level2.2 Level3 1000Thumbnails..... (inside…
Hiran Patel
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Aurelia UI virtualization with flex box divs (five columns)

I have an Aurelia app where I want to have an infinite scroll in one part of a dashboard application. So, my scrolling area is only on one part of the screen. I have it scrolling but the scroll is jerky every three or four lines and I am trying to…
Gregory D. Dickson
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Datagrid Virtualization affect Selection of items

I have a datagrid that shows large number of data so I turn on the virtualization. On my grid I also have a checkbox column that is bind two-way on IsSelected property of my viewmodel. When I tried to Select All, all items are selected. When I…
Dyva
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Listbox with thousand of images in a wrappanel

I'm trying to create a listbox that may contain over a thousand images in a grid like design. In term of design it would be quite similar to this: Since I can't use a wrappanel as that would break UI virtualization and a stackpanel can't list…
NeoID
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Wpf: ListView update at propertychanged much slower than actual database query

I'm building a search function for my application where the list of matching products should update at every keystroke, but it's way too slow and the strange things is that the actual update time in the GUI is much longer than the time it takes to…
Mårten Thurén
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Enabling virtualization in Win 8.1 Gridview with Grouping

I have been trying to reduce the load time of a page that contains this gridview, As per MS documentation http://msdn.microsoft.com/en-US/library/windows/apps/xaml/hh780657.aspx ,you will not get virualization if you use Grouping. Does anyone knows…
AGCodes
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Notification on UI component reused in UI virtualization

I am using a Xceed WPF Grid with UI virtualization with horizontal and vertical Scrollbars. When I use the Scrollbar vertically or horizontally, with reusable UI components (VirtualizingStackPanel.VirtualizationMode="Recycling"), I want an event or…
Nakul Chaudhary
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