Shadcn Code Block Long File

Long file with expand. Built by composing Code Block, Scroll Area. Uses cn alongside the shadcn primitives. A free, open source shadcn code block example you can install with npx shadcn@latest add @reui/c-code-block-10 and edit as your own code.

Collapsed at a line budget with an expand control and a line offset.

For AI Agents

Hand your agent this brief or the ReUI MCP, not a screenshot. Free to install.

Best for: A generated file excerpt numbered from 120 and held near 8 rows by a ScrollArea that reads expanded state until Show more

When to use

Assistant replies and agent output that stream code, or lines a reader picks to ask about
Code review of diffs, git patches and diagnostics, with accept, reject and fix actions
Docs snippets and terminal or test logs with line numbers, copy, wrap, folding and search

When not to use

Collapsing by indentation regions rather than at a line count: use the Code Block Code Folding example
A full assistant conversation screen with thread list, transcript and composer: use the AI Chat blocks
A discount or promo code shown for a shopper to copy at checkout: use the Coupon blocks
A release console with environment lanes, a deploy history grid and streaming logs: use the Dev Ops blocks

Agent notes

CollapsibleArea caps the viewport with a fixed height class, so retune it whenever maxLines changes
Line specs such as highlightedLines, diff and folded count source lines from 1, whatever startLine prints in the gutter
maxLines caps height only on the built-in surface; with CodeBlockContent inside your own ScrollArea, cap that viewport yourself
Hoist transformers to module scope; a new array on every render re-tokenizes the whole file

Markdownhttps://reui.io/components/code-block/c-code-block-10.md

MCPget_example("c-code-block-10")

Installnpx shadcn@latest add @reui/c-code-block-10

Full index for agents:llms.txtReUI MCP setup

Shadcn Components in Code Block Long File

Dependencies

About Shadcn Code Block Long File

What You Can Build With Shadcn Code Block Long File

Composes Code Block, Scroll Area, so it drops into any project already using those components.
Install it with the shadcn CLI: npx shadcn@latest add @reui/c-code-block-10
Open source and free, with the full source on this page to copy or adapt.

More Shadcn Code Block Examples

Basic Basic code block
Pinned Copy Pinned copy button
Streaming Agent Streaming agent response
AI Chat AI chat with code fences
Diff Summary Diff with change summary
Transformer Diff Diff via shiki transformers
Highlights Highlighted lines and words
Focus Walkthrough Focus walkthrough
Terminal Output Terminal output
Diagnostics & Actions Line actions and diagnostics
Line Selection Line selection
Search In File Search in file

Related Shadcn Component Categories

Collapsible
Open-source shadcn collapsible components for expandable sections, detail rows, and progressive disclosure.
Color Picker
Open-source shadcn color picker components for brand settings, theme editors, label colors, and design tools.
Combobox
Open-source shadcn combobox components for searchable selection, async lookup, and command menus.
Command
Open-source shadcn command menu components for command palettes, global search, and power-user navigation.
Context Menu
Open-source shadcn context menu components for right-click menus, file actions, and table row actions.
Data Grid
Open-source shadcn data grid components for sorting and filtering, virtualized tables, and admin dashboards.

Frequently Asked Questions

When should I use Shadcn Code Block Long File?

Use it for a generated file excerpt numbered from 120 and held near 8 rows by a ScrollArea that reads expanded state until Show more.

Shadcn Code Block as a whole fits:

Assistant replies and agent output that stream code, or lines a reader picks to ask about
Code review of diffs, git patches and diagnostics, with accept, reject and fix actions
Docs snippets and terminal or test logs with line numbers, copy, wrap, folding and search

For collapsing by indentation regions rather than at a line count, use the Code Block Code Folding example. For a full assistant conversation screen with thread list, transcript and composer, use the AI Chat blocks. For a discount or promo code shown for a shopper to copy at checkout, use the Coupon blocks. For a release console with environment lanes, a deploy history grid and streaming logs, use the Dev Ops blocks.

How do I install Shadcn Code Block Long File?

Run npx shadcn@latest add @reui/c-code-block-10. The CLI copies the source into your project, so you own the code and can edit it freely.

Is Shadcn Code Block Long File free to use?

Yes. Every ReUI component example is open source and free for personal and commercial projects.

Which components does Shadcn Code Block Long File use?

It composes Code Block, Scroll Area. The shadcn CLI installs those alongside the example.

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