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Avalonia Numeric Input

Agent skill
1 skill

Bind numeric entry controls in Avalonia 11 to a view model correctly, including the nullable trap that bites NumericUpDown. Use when adding a NumericUpDown or numeric TextBox to a settings panel, when a numeric value will not two-way bind or resets to zero, when a NumericUpDown bound to an int or double misbehaves, when you need min/max clamping, step increment, decimal-place formatting, or per-field validation with error display, or when deciding between NumericUpDown and a TextBox plus converter. Covers NumericUpDown.Value being a nullable decimal and how it binds to int and double, FormatString and Increment, Minimum and Maximum, validation via ObservableValidator, and a TextBox-plus-converter fallback. Triggers on Avalonia NumericUpDown, numeric binding, decimal versus int binding, value not updating, NumericUpDown resets, FormatString, Minimum Maximum, spinner increment, numeric validation, ObservableValidator, numeric TextBox.

Install with
Claude CodeCodexCursorGitHub CopilotGemini CLI

Supported by the Atlas install prompt. Skill-specific requirements vary.

Skill stats

Skills1CategoryGeneralStars0

About this skill

Bind numeric entry controls in Avalonia 11 to a view model correctly, including the nullable trap that bites NumericUpDown. Use when adding a NumericUpDown or numeric TextBox to a settings panel, when a numeric value will not two-way bind or resets to zero, when a NumericUpDown bound to an int or double misbehaves, when you need min/max clamping, step increment, decimal-place formatting, or per-field validation with error display, or when deciding between NumericUpDown and a TextBox plus converter. Covers NumericUpDown.Value being a nullable decimal and how it binds to int and double, FormatString and Increment, Minimum and Maximum, validation via ObservableValidator, and a TextBox-plus-converter fallback. Triggers on Avalonia NumericUpDown, numeric binding, decimal versus int binding, value not updating, NumericUpDown resets, FormatString, Minimum Maximum, spinner increment, numeric validation, ObservableValidator, numeric TextBox.

Quick start

  1. Copy the install prompt. Use the green button above this README.
  2. Send it to your agent. Paste it into your coding agent’s chat and send.
  3. Review the setup. Your agent checks the skill’s instructions, requirements, and installation scope.
Review, license & listing details
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This is an imported listing. We haven’t certified its safety, license, or compatibility. Skills may include executable scripts.

Automated security scan: Partial

Only SKILL.md was scanned. Supporting files and scripts were not checked. No safety grade has been assigned.

0 potential findings · Scanned 11/4/2026 · Scanner 0.2.1

Content SHA-256: e7a234b412871fcbe6ba8379ce7e411575f26477a527bb31cacbccf370400262

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About this listing

Category
General
Reported license
MIT
Listing language (estimated)
English
Review status
Not individually reviewed
Agent compatibility
Atlas installation supports Claude Code, Codex, and Cursor. Skill-specific dependencies and features are checked during setup.
Avalonia Numeric Input | Agent Skills Atlas