Migration Guide: Syncfusion® .NET MAUI to Syncfusion® Toolkit for .NET MAUI

The Syncfusion® Toolkit for .NET MAUI represents the next generation of Syncfusion® components for MAUI applications. While most APIs and functionality remain the same, components have been consolidated into a single toolkit with updated namespaces. This guide helps you migrate existing Syncfusion® .NET MAUI projects to the new toolkit with minimal code modifications.

Table of Contents

• Overview
• Documentation and Navigation Guide
• Quick Start Example
• Common Migration Patterns
• Key Migration Principles

Overview

The migration from Syncfusion® .NET MAUI to Syncfusion® Toolkit for .NET MAUI involves three primary changes:

1. Namespace Updates - Component namespaces are reorganized under Syncfusion.Maui.Toolkit.*
2. Assembly Consolidation - Individual component assemblies consolidated into Syncfusion.Maui.Toolkit
3. Configuration Method - ConfigureSyncfusionCore() renamed to ConfigureSyncfusionToolkit()

Good news: Your existing component implementations work nearly identically. The primary effort is updating namespaces and the initialization method.

Documentation and Navigation Guide

Choose your migration path based on where you are in the process:

Getting Started

📄 Read: references/getting-started.md

Start here if you:

• Are new to the migration process
• Need to understand migration scope and benefits
• Want prerequisites and an overview of what changes
• Are planning your migration timeline

Covers:

• Why migrate to the toolkit
• Prerequisites and requirements
• What components are affected
• High-level change summary

Namespace Updates

📄 Read: references/namespace-updates.md

Read this when you need to:

• Update XAML namespace declarations
• Modify C# using statements
• Find exact namespace mappings for specific components
• Understand assembly changes from NuGet packages
• Get search & replace patterns for your IDE

Covers:

• Complete XAML namespace reference (20+ controls)
• Complete C# namespace reference (20+ controls)
• Assembly changes and package structure
• Real-world migration examples with before/after code
• Troubleshooting namespace-related build errors

Configuration Method Migration

📄 Read: references/method-migration.md

Use this when you need to:

• Update your MauiProgram.cs initialization
• Change ConfigureSyncfusionCore() to ConfigureSyncfusionToolkit()
• Understand AppHostBuilder configuration
• See code-behind changes
• Review method signature changes

Covers:

• Step-by-step initialization update
• Old vs. new configuration code
• Complete MauiProgram.cs example
• Advanced configuration options
• Troubleshooting initialization issues

Migration Checklist

📄 Read: references/migration-checklist.md

Use this as your:

• Pre-migration verification checklist
• Step-by-step migration process guide
• Post-migration validation checklist
• Troubleshooting reference for common issues
• Performance validation guide

Covers:

• Pre-migration steps and backup procedures
• Component inventory preparation
• Step-by-step numbered migration process
• Build and test verification
• Common issues and solutions with fixes
• Migration completion checklist

Quick Start Example

Here's how a typical XAML migration looks. The component usage itself doesn't change—only the namespace:

Before (Syncfusion® .NET MAUI)

XAML:

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:button="clr-namespace:Syncfusion.Maui.Buttons;assembly=Syncfusion.Maui.Buttons">
    <VerticalStackLayout>
        <button:SfButton Text="Click Me" Clicked="OnButtonClicked" />
    </VerticalStackLayout>
</ContentPage>

C# (MauiProgram.cs):

using Syncfusion.Maui.Core.Hosting;

var builder = MauiApp.CreateBuilder();
builder
    .UseMauiApp<App>()
    .ConfigureFonts(fonts => fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular"))
    .ConfigureSyncfusionCore();

return builder.Build();

C# (Code-Behind):

using Syncfusion.Maui.Buttons;

namespace MigrationApp;

public partial class MainPage : ContentPage
{
    public MainPage()
    {
        InitializeComponent();
    }

    private void OnButtonClicked(object sender, EventArgs e)
    {
        DisplayAlert("Success", "Button clicked!", "OK");
    }
}

After (Syncfusion® Toolkit for .NET MAUI)

XAML:

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:button="clr-namespace:Syncfusion.Maui.Toolkit.Buttons;assembly=Syncfusion.Maui.Toolkit">
    <VerticalStackLayout>
        <button:SfButton Text="Click Me" Clicked="OnButtonClicked" />
    </VerticalStackLayout>
</ContentPage>

C# (MauiProgram.cs):

using Syncfusion.Maui.Toolkit.Hosting;

var builder = MauiApp.CreateBuilder();
builder
    .UseMauiApp<App>()
    .ConfigureFonts(fonts => fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular"))
    .ConfigureSyncfusionToolkit();

return builder.Build();

C# (Code-Behind):

using Syncfusion.Maui.Toolkit.Buttons;

namespace MigrationApp;

public partial class MainPage : ContentPage
{
    public MainPage()
    {
        InitializeComponent();
    }

    private void OnButtonClicked(object sender, EventArgs e)
    {
        DisplayAlert("Success", "Button clicked!", "OK");
    }
}

Summary of Changes:

• ✅ XAML namespace: Syncfusion.Maui.Buttons → Syncfusion.Maui.Toolkit.Buttons
• ✅ XAML assembly: Syncfusion.Maui.Buttons → Syncfusion.Maui.Toolkit
• ✅ C# using: Syncfusion.Maui.Buttons → Syncfusion.Maui.Toolkit.Buttons
• ✅ Configuration: ConfigureSyncfusionCore() → ConfigureSyncfusionToolkit()
• ✅ MauiProgram.cs using: Syncfusion.Maui.Core.Hosting → Syncfusion.Maui.Toolkit.Hosting
• ✅ Component usage: No changes - SfButton behavior is identical

Common Migration Patterns

Pattern 1: Multiple Components in One Page

When your page uses multiple Syncfusion® components, update all namespace declarations:

Before:

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:button="clr-namespace:Syncfusion.Maui.Buttons;assembly=Syncfusion.Maui.Buttons"
             xmlns:calendar="clr-namespace:Syncfusion.Maui.Calendar;assembly=Syncfusion.Maui.Calendar"
             xmlns:cards="clr-namespace:Syncfusion.Maui.Cards;assembly=Syncfusion.Maui.Cards">

After:

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:button="clr-namespace:Syncfusion.Maui.Toolkit.Buttons;assembly=Syncfusion.Maui.Toolkit"
             xmlns:calendar="clr-namespace:Syncfusion.Maui.Toolkit.Calendar;assembly=Syncfusion.Maui.Toolkit"
             xmlns:cards="clr-namespace:Syncfusion.Maui.Toolkit.Cards;assembly=Syncfusion.Maui.Toolkit">

Pattern 2: Code-Behind Multi-Component Usage

When using components in code-behind, update all using statements:

Before:

using Syncfusion.Maui.Buttons;
using Syncfusion.Maui.Calendar;
using Syncfusion.Maui.Cards;

namespace MyApp;

public partial class ComplexPage : ContentPage
{
    public ComplexPage()
    {
        InitializeComponent();
        var button = new SfButton { Text = "Dynamic" };
        var calendar = new SfCalendar();
    }
}

After:

using Syncfusion.Maui.Toolkit.Buttons;
using Syncfusion.Maui.Toolkit.Calendar;
using Syncfusion.Maui.Toolkit.Cards;

namespace MyApp;

public partial class ComplexPage : ContentPage
{
    public ComplexPage()
    {
        InitializeComponent();
        var button = new SfButton { Text = "Dynamic" };
        var calendar = new SfCalendar();
    }
}

Pattern 3: Conditional Component Usage

When using components conditionally or in view models, ensure all namespace declarations are updated:

Before:

using Syncfusion.Maui.Buttons;

namespace MyApp.ViewModels;

public class ButtonViewModel
{
    public SfButton CreateButton()
    {
        return new SfButton 
        { 
            Text = "Action",
            BackgroundColor = Colors.Blue
        };
    }
}

After:

using Syncfusion.Maui.Toolkit.Buttons;

namespace MyApp.ViewModels;

public class ButtonViewModel
{
    public SfButton CreateButton()
    {
        return new SfButton 
        { 
            Text = "Action",
            BackgroundColor = Colors.Blue
        };
    }
}

Key Migration Principles

1. Namespace-Based Migration

All changes center around namespaces. Component APIs, properties, and event signatures remain virtually identical.

2. Single Assembly Consolidation

Instead of installing individual component packages (Syncfusion.Maui.Buttons, Syncfusion.Maui.Calendar, etc.), you install the single Syncfusion.Maui.Toolkit NuGet package.

3. Minimal Code Changes

Existing code logic and implementation patterns require no changes. Only namespace declarations and assembly references are updated.

4. One-Time Initialization Update

Update MauiProgram.cs once at application startup. All components then use the new toolkit automatically.

5. Complete Backward Compatibility

Component functionality, properties, events, and behaviors are fully preserved. No feature changes required.

Getting Help & Resources

• Step-by-Step Guide: Start with references/migration-checklist.md for numbered steps
• Namespace Reference: Use references/namespace-updates.md for component lookups
• Troubleshooting: Check references/migration-checklist.md for common problems
• Configuration Help: See references/method-migration.md for initialization details

Next Steps:

1. Read references/getting-started.md for prerequisites
2. Use references/namespace-updates.md to identify all components in your project
3. Follow references/migration-checklist.md for step-by-step migration
4. Reference references/method-migration.md for MauiProgram.cs update
5. Test your application thoroughly post-migration

Good luck with your migration! The process is straightforward, and most developers complete it in 30-60 minutes depending on project size.