# Vbnet

> Visual Basic .NET for legacy .NET applications. Use for .vb files. Use when this capability is needed.

- Skill: `tomevault-io/vbnet` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add tomevault-io/vbnet`
- Raw SKILL.md: https://api.skillmd.com/api/skills/tomevault-io/vbnet/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: tomevault-io (https://skillmd.com/u/tomevault-io)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/tomevault-io/vbnet

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# VB.NET

VB.NET is a first-class citizen on .NET, sharing the same runtime/libraries as C#. While C# gets new syntax first, VB.NET remains supported in .NET 8+.

## When to Use

- **Legacy Migration**: Porting VB6 apps to .NET.
- **Readability**: Specific industries prefer the verbose, English-like syntax (`End If`).
- **Office Automation**: Integration with massive Excel/Access logic.

## Core Concepts

### Case Insensitivity

`Dim X` and `dim x` are the same.

### Modules

Equivalent to static classes.

### My Namespace

`My.Computer`, `My.User`. Shortcuts for common tasks.

## Best Practices (2025)

**Do**:

- **Use `Option Strict On`**: Disables implicit casting (critical for bugs).
- **Target .NET 8**: Move away from .NET Framework 4.8.
- **Use String Interpolation**: `$"Hello {Name}"`.

**Don't**:

- **Don't use `On Error Resume Next`**: Use structured `Try...Catch`.

## References

- [Microsoft VB.NET Guide](https://learn.microsoft.com/en-us/dotnet/visual-basic/)

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