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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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Silverlight MediaElement and UI Virtualization

I have an application that contains many controls on a panel, each with its own MediaElement playing video. I have been looking into the new UI Virtualization features of Silverlight 3 to improve performance when scrolling through many of these…
Dan Auclair
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TreeView jumpy scrolling

I have a virtualized TreeView with these properties:
Bent Rasmussen
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Load large data set with WPF ContextMenu for RichTextBox

I'm into a situation where the number of items of a ContextMenu has gone to a number like 3 thousand. In this scenario, the ContextMenu takes lot of time in loading itself. I'm trying to do UI Virtualization but without any luck. The sample code is…
HarshG
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UI Virtualization stop when I use template for listview

I have a control extended from listview in WPF. If I override "Template" using a custom template, the UI virtualization is no longer exists. Could somebody help me to have UI virrtualization along with custom template. My ListView Control XAML …
Relativity
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How to load large number of controls in Canvas selectively

I have a big size Canvas and a lot of small user controls placed over it. At a time only a small portion of the canvas is visible on screen. The usercontrols are created by the ItemsControl which is Data bound to a ViewModel.
Souvik Basu
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Scroll Viewers as master of Video Memory management

I dont know how many of you have observed this, when we minimize a complex WPF application we can observe reduction in used memory. Also when we restore the WPF window, it regains that memory. My question is this Is this what we call video memory?…
WPF-it
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Custom Tree View in WPF with Disappearing Icons and Virtualization Issues

I am working a WPF desktop application where I have implemented Tree View using ListBox control. My ListBox has two StackPanels - one for content and the other for auto-display icons. It has horizontal and vertical scroll as well. Please note there…
Ch Rashid Ebad
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It it possible to control a fluid animation in Lit Virtualizer

I am implementing a Infinte Scroll Carousel with Lit. I want to control the carousel with key events. On long key press (or throttled) I want the animation te be fluid and stop at a specific place. Is it possible to animate the items in virtalizer…
Liskovy
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React-Virftual v2 | Virtualizer `virtualItems` only contains 11 elements although `totalSize` is 20k+

Basically, I'm implementing a virtualized Material UI v4 Autocomplete, to do so I have this component: const ListboxComponent = React.forwardRef(({ children, ...rest }, ref) => { const childArray =…
Omar
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WPF: TreeView, Virtualization, Select and BringIntoView issue

I have a TreeView that must be virtualized for performance reasons. The problem is that if I change the bound IsSelected property the TreeViewItem.Selected event is not called until it is visible (when scrolled down). So I can not implement the…
Lord Tasci
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Override VirtualizationMode default value on TreeViewItems

I want the default value of VirtualizingPanel.VirtualizationMode to Recycling, mainly on TreeViewItems. It may be something simple I'm missing but I've tried all these:
Hossein Ebrahimi
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Silverlight UI Virtualisation for Listbox with Items having writable bitmap

I have a created a display control with two Columns - 1. A thumbails list and 2. Listbox of images. The images are written to writeable bitmap and then added to listbox items. I have created custom tab control so that multiple instances can be…
Chinjoo
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JavaFX, custom made VirtualFlow performance improvements tips

I'm trying to implement my own VirtualFlow but I'm having some performance issues and I don't understand where the bottleneck could be and what I could do to improve it. Here's a showcase with two lists, one with simple cells and one with checkboxes…
Alessandro Parisi
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How to get element references of Virtualize component's children?

I use Virtualize component like this: How do I get references to current components? I need to explicitly call refresh on them.
Liero
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WPF ListView virtualization in a ScrollViewer

I have a requirement which is to display a user information at top of the page and a ListView of images will follow it, and I've wrote following code (it's a pseudocode but I think it's enough to explain what I've done): …
Dylech30th
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