agentmods.dev

devexpress-winforms-tree-list

devexpress-winforms-tree-list is a skill for Claude Code from DevExpress/agent-skills. It costs 242 tokens per session (5,074 once invoked), scanned A, original, MIT.

A Windows Forms control for displaying parent-child data as an expandable tree, with columns like a table. Windows Forms is Microsoft’s framework for building Windows desktop applications.

In plain words
What is it for?
Use it for file trees, organisation charts, product categories, bills of materials, and other data where rows have parent-child relationships.
Why use it?
It avoids combining a tree view and a separate data grid when users need to browse, sort, filter, edit, or search hierarchical records.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: names the AskUserQuestion tool; mentions Claude Code.

Part of the dx-winforms plugin — 14 skills shipped together

not rated 52repo +3 23d ago A scan SkillSpector: pass 242 tokens original MIT

Good fit Use it for file trees, organisation charts, product categories, bills of materials, and other data where rows have parent-child relationships.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/devexpress/agent-skills/devexpress-winforms-tree-list
View source ↗ DevExpress/agent-skills devexpress.com
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add DevExpress/agent-skills --skill devexpress-winforms-tree-list
Clone the repo
git clone --depth 1 https://github.com/DevExpress/agent-skills

Made for: Claude Code.

Or install dx-winforms, the plugin that ships this one along with the rest of its 14 skills.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for devexpress-winforms-tree-list

README.md
[![agentmods](https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-winforms-tree-list/github.svg)](https://agentmods.dev/skills/devexpress/agent-skills/devexpress-winforms-tree-list)
Your own site
<a href="https://agentmods.dev/skills/devexpress/agent-skills/devexpress-winforms-tree-list"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-winforms-tree-list/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for devexpress-winforms-tree-list

Your own site · 80×15
<a href="https://agentmods.dev/skills/devexpress/agent-skills/devexpress-winforms-tree-list"><img src="https://agentmods.dev/badge/skills/devexpress/agent-skills/devexpress-winforms-tree-list.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 242 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,074 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00242 $0.05074
Opus 5 $0.00121 $0.02537
Sonnet 5 $0.00048 $0.01015
Haiku 4.5 $0.00024 $0.00507

Measured 11d ago against content hash 72151634afaf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-10, from the pricing page.

Security

Grade A, and why

devexpress-winforms-tree-list scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/dx-winforms/skills/devexpress-winforms-tree-list/SKILL.md · 339 lines

How it starts

The opening of the file, as written. The whole thing — 339 lines — stays where its author put it; the contents beside it link to each section on GitHub.

DevExpress WinForms TreeList

TreeList is a data-aware control that displays data as a tree, a multi-column tree-grid, or a combination of both. It supports bound mode (any traditional data source plus KeyFieldName/ParentFieldName), unbound mode (nodes created in code via AppendNode), and virtual mode (load children on demand). Because it includes grid functionality, you also get sorting, filtering, searching, summaries, in-place editing, validation, conditional formatting, and export — applied to a hierarchy.

The control lives in the DevExpress.XtraTreeList namespace; nodes are TreeListNode objects (DevExpress.XtraTreeList.Nodes), columns are TreeListColumn objects (DevExpress.XtraTreeList.Columns). It ships with the DevExpress.Win.TreeList NuGet package.

TreeList vs. Data Grid: Use TreeList for hierarchical / parent-child data (org charts, file trees, BOM, categories). For purely flat tabular data, use the Data Grid (GridControl) — TreeList can show a flat list (with empty KeyFieldName/ParentFieldName) but the grid is the recommended control for that.

When to Use This Skill

  • Displaying org charts, file/folder trees, project hierarchies, BOM, or any parent-child data
  • Binding flat self-referential data (records with ID + ParentID) into a tree
  • Building a tree programmatically with no data source (unbound mode, AppendNode)
  • Loading child nodes on demand (dynamic / virtual mode)
  • Defining columns, in-place editors, and edit forms for a tree-grid
  • Sorting, filtering, searching, summarizing a tree
  • Applying conditional formatting, node checkboxes/images, drag-and-drop
  • Printing or exporting a tree to XLSX / PDF / XML

Prerequisites & Installation

NuGet Package

DevExpress.Win.TreeList

Install-Package DevExpress.Win.TreeList

This package ships DevExpress.XtraTreeList.v26.1.dll. For print preview and export to XLSX/PDF/HTML, also add DevExpress.Win.Printing. All DevExpress packages in a project must share the same version.

Read the full file on GitHub · 339 lines

Files

What ships with it

9 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 339 lines · 242 tokens per session scan A 72151634afaf

Subscribe to this mod's changes

devexpress-winforms-tree-list is a skill published in the GitHub repository DevExpress/agent-skills (52 stars, last pushed 23d ago), licensed MIT. It adds 242 tokens to every session and 5,074 once invoked, about $0.0012 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

C# and .NETFrontendLanguagesagent-pluginsagent-skillsaiai-coding-agentdevexpressdevextreme
Related

Other skills, from other repositories

avalonia-viewmodels-zafiro

Optimal ViewModel and Wizard creation patterns for Avalonia using Zafiro and ReactiveUI.

sickn33/agentic-awesome-skills · 26 tokens

avalonia-zafiro-development

Mandatory skills, conventions, and behavioral rules for Avalonia UI development using the Zafiro toolkit.

sickn33/agentic-awesome-skills · 27 tokens

convert-blazor-server-to-webapp

Guides conversion of a pre-.NET 8 Blazor Server app into a .NET 8+ Blazor Web App. USE FOR: migrating apps that use AddServerSideBlazor and MapBlazorHub to the AddRazorComponents/MapRazorComponents model, converting Host.cshtml to an App.razor root component, replacing blazor.server.js with blazor.web.js, migrating…

dotnet/skills · 176 tokens

create-blazor-project

Create a new ASP.NET Core web application or web site using Blazor. USE FOR: creating a new Blazor web app, scaffolding a new web project, starting a new web site, choosing render modes (Static SSR, Interactive Server, Interactive WebAssembly, Auto), running dotnet new blazor with the right options, setting up initial…

dotnet/skills · 104 tokens

coordinate-components

Share state between components that don't have a direct parent-child parameter relationship, using cascading values, scoped services with change events, or CascadingValueSource via DI. USE WHEN the user needs a CascadingParameter or CascadingValue that works across render mode boundaries, a shopping cart or…

dotnet/skills · 182 tokens

use-js-interop

Add, review, or fix JavaScript interop in Blazor components. USE FOR: calling JavaScript from Blazor, calling .NET from JavaScript, collocated .razor.js modules, IJSRuntime, IJSObjectReference lifecycle, DotNetObjectReference, ElementReference, timing rules for when JS is available, IAsyncDisposable disposal of JS…

dotnet/skills · 114 tokens