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nth-child selector
See original GitHub issueIs your feature request related to a problem? Please describe.
We had some talk about this internally, but I am repeating it here for visibility: It would be nice to have some CSS-like nth-child selector that allows you to style every nth descendant.
Describe the solution you’d like
<Style Selector="ListBox ListBoxItem:nth-child(2n+2)" />
(Would select every 2nd ListBoxItem)
The syntax is debatable, but it’s how CSS does it: https://css-tricks.com/how-nth-child-works/
Describe alternatives you’ve considered
WPF’s ItemsControl.AlternationIndex is not flexible enough IMO.
Additional context
CC: @grokys
Issue Analytics
- State:
- Created 2 years ago
- Reactions:1
- Comments:14 (13 by maintainers)
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Based on @maxkatz6 code I have created reusable behavior:
https://github.com/wieslawsoltes/AvaloniaBehaviors/blob/4aa7ce1334b6208ca7321c06783ea5f47ca07d48/src/Avalonia.Xaml.Interactions/Custom/NthChildBehavior.cs#L18
Sample usage:
https://github.com/wieslawsoltes/AvaloniaBehaviors/blob/4aa7ce1334b6208ca7321c06783ea5f47ca07d48/samples/BehaviorsTestApplication/Views/Pages/NthChildBehaviorView.axaml#L17
Good you mentioned it here. I did created simplifed classes setter that can be enabled with attached properties. Will be useful for anybody, who needs it, but can’t wait until Avalonia will get proper support for it. https://gist.github.com/maxkatz6/124dc79665462982c674b19d788ab6de