# yuiCoreChoiceRenderItem

A yui core choice render item record carrying ownerId, kind, state, label, checked, and related state.

Last updated: 2026-09-09

Package: frontend.yui | Status: source-declared

Tags: cpu, frontend, frontend.yui, method, source-example, thing, yeho, yui

Turn YUI models into a working frontend and its rendering/input adapters.

```yh
external thing yuiCoreChoiceRenderItem
```

- text ownerId: Stores owner id as text.
- text kind: Stores kind as text.
- text state: Stores state as text.
- text label: Stores label as text.
- bool checked: Stores checked as bool.
- yuiRenderBounds bounds: Stores bounds as yuiRenderBounds.
- text clipId: Stores clip id as text.
- text layerId: Stores layer id as text.
- text focusLayerId: Stores focus layer id as text.
- text targetId: Stores target id as text.
- yuiCoreChoiceRenderItem(text ownerId, text kind, text state, text label, bool checked, yuiRenderBounds bounds, text clipId, text layerId, text focusLayerId, text targetId): Yui core choice render item.
- ValidationIssue(yuiDisplayList display, yuiCoreControlCatalog catalog) returns text: Validation issue.

## Use yuiCoreChoiceRenderItem

A complete small caller. Values are illustrative; check the returned result and package requirements before connecting live resources.

Verification: type checked

```yh
using frontend.yui

// Turn YUI models into a working frontend and its rendering/input adapters.
yuiCoreChoiceRenderItem sample = yuiCoreChoiceRenderItem("owner Id", "kind", "state", "Player health", true, yuiRenderBounds(1, 1, 1, 1), "clip Id", "layer Id", "focus Layer Id", "target Id")
Console.Log(Text.From(sample.ownerId))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.frontend_yui__yuicorechoicerenderitem"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "frontend.yui"
version = "0.2.0"
path = "../../../yeho/packages/frontend/yui"

[[dependencies]]
package = "graphics.canvas"
version = "0.1.0"
path = "../../../yeho/packages/graphics/canvas"

[[dependencies]]
package = "graphics.image"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image"

[[dependencies]]
package = "graphics.image.processing"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image/processing"

[[dependencies]]
package = "graphics.text"
version = "0.1.0"
path = "../../../yeho/packages/graphics/text"

[[dependencies]]
package = "host.ui_services"
version = "0.1.0"
path = "../../../yeho/packages/host/ui_services"

[[dependencies]]
package = "input.text"
version = "0.1.0"
path = "../../../yeho/packages/input/text"

[[dependencies]]
package = "ui"
version = "0.2.0"
path = "../../../yeho/packages/ui"

```

Extract the example archive beside the yeho and dolphin checkouts. This example requires those source dependencies and a current developer compiler.

```sh
./yeho/build/dolphin-metal/yehoc ./api-examples/frontend.yui--yuiCoreChoiceRenderItem/usage --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


## yuiCoreChoiceRenderItem.ValidationIssue

A complete caller for this public method. Sample inputs are illustrative; native resources require their owning lifecycle.

Verification: type checked

```yh
using frontend.yui

// Validation issue.
yuiCoreChoiceRenderItem instance = yuiCoreChoiceRenderItem("owner Id", "kind", "state", "Player health", true, yuiRenderBounds(1, 1, 1, 1), "clip Id", "layer Id", "focus Layer Id", "target Id")
yuiDisplayList argument_display = yuiDisplayList("surface Id")
yuiCoreControlCatalog argument_catalog = yuiCoreControlCatalog()
text result = instance.ValidationIssue(argument_display, argument_catalog)
Console.Log(Text.From(result))

```

Save this beside start.yh as project.mech:

```toml
manifestVersion = "2"
package = "api.example.frontend_yui__yuicorechoicerenderitem"
version = "0.1.0"
languageEdition = "yeho-core-2026.1"

[app]
kind = "headless"

[[dependencies]]
package = "frontend.yui"
version = "0.2.0"
path = "../../../yeho/packages/frontend/yui"

[[dependencies]]
package = "graphics.canvas"
version = "0.1.0"
path = "../../../yeho/packages/graphics/canvas"

[[dependencies]]
package = "graphics.image"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image"

[[dependencies]]
package = "graphics.image.processing"
version = "0.1.0"
path = "../../../yeho/packages/graphics/image/processing"

[[dependencies]]
package = "graphics.text"
version = "0.1.0"
path = "../../../yeho/packages/graphics/text"

[[dependencies]]
package = "host.ui_services"
version = "0.1.0"
path = "../../../yeho/packages/host/ui_services"

[[dependencies]]
package = "input.text"
version = "0.1.0"
path = "../../../yeho/packages/input/text"

[[dependencies]]
package = "ui"
version = "0.2.0"
path = "../../../yeho/packages/ui"

```

Extract the example archive beside the yeho and dolphin checkouts. This example requires those source dependencies and a current developer compiler.

```sh
./yeho/build/dolphin-metal/yehoc ./api-examples/frontend.yui--yuiCoreChoiceRenderItem/method-ValidationIssue-11 --backend cpu-oracle -o /tmp/yeho-example
/tmp/yeho-example
```


Package presence and a declaration do not establish support on every host. Host services need their platform and lifecycle setup.

Source: yeho/packages/frontend/yui/controls-render-display_list.yh

AI training permission: https://demonhunterlabs.com/ai-use