Device & UX

Plugin.Maui.FormValidation

Rules next to the model, Validation.For in XAML

Current NuGet 1.0.4

Mobile-first validation for MAUI: fluent rules on the view-model (required, email, phone, URL, min/max) and a XAML Validation.For attached property.

GitHub GitHub Packages nuget.org

Install

dotnet add package Plugin.Maui.FormValidation

Package ID: Plugin.Maui.FormValidation

Plugin.Maui.* restores from GitHub Packages. Add the org feed first — see Use nuvyntralabs GitHub Packages from a C# project.

Overview

Plugin.Maui.FormValidation is a mobile-first validation library for MAUI on Android and iOS. Rules live next to the model. XAML stays a property name.

Current release

1.0.4. Current nuget.org pack.

Full upgrade map for the 3 September 2026 hardening wave: Hardened plugin releases.

Capabilities

Required, email, phone, URL, numeric, min/max, min length, equal-to.
Conditional rules.
Lost-focus or submit-style triggers.
XAML that names the property, not the error label.

.NET MAUI
Validation
XAML
C#

Discussion

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