[Blazor] Cascading Parameter that transfers across render boundaries #51969
Labels
area-blazor
Includes: Blazor, Razor Components
enhancement
This issue represents an ask for new feature or an enhancement to an existing one
Pillar: Complete Blazor Web
Priority:1
Work that is critical for the release, but we could probably ship without
Milestone
This is a common point of confusion for customers, so we could add a new
SerializableCascadingValue
component or similar that is able to flow across component boundaries.With the requirement that the value needs to be JSON serializable and that you won't (probably) get updates (it's a 1-time thing, but maybe we can update via enhanced navigations).
The internal component we use for the render boundary can capture the serializable value providers in the hierarchy, serialize those, and expose them once it begins rendering interactively.
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