Getting Started with .NET MAUI Numeric Entry

This section guides you through setting up and configuring a Numeric Entry in your .NET MAUI application. Follow the steps below to add a basic Numeric Entry to your project.

Prerequisites

Before proceeding, ensure the following are set up:

  1. Install .NET 9 SDK or later.
  2. Set up a .NET MAUI environment with Visual Studio 2022 v17.12 or later.

Step 1: Create a new .NET MAUI project

  1. Go to File > New > Project and choose the .NET MAUI App template.
  2. Name the project and choose a location. Then click Next.
  3. Select the .NET framework version and click Create.

Step 2: Install the Syncfusion® .NET MAUI Toolkit NuGet package

  1. In Solution Explorer, right-click the project and choose Manage NuGet Packages.
  2. Search for Syncfusion.Maui.Toolkit and install the latest version.
  3. Ensure the necessary dependencies are installed correctly, and the project is restored.

Prerequisites

Before proceeding, ensure the following are set up:

  1. Install .NET 9 SDK or later.
  2. Set up a .NET MAUI environment with Visual Studio Code.
  3. Ensure that the .NET MAUI workloads are installed and configured as described here.

Step 1: Create a new .NET MAUI project

  1. Open the command palette by pressing Ctrl+Shift+P and type .NET:New Project and enter.
  2. Choose the .NET MAUI App template.
  3. Select the project location, type the project name and press Enter.
  4. Then choose Create project.

Step 2: Install the Syncfusion® .NET MAUI Toolkit NuGet package

  1. Press Ctrl + ` (backtick) to open the integrated terminal in Visual Studio Code.
  2. Ensure you’re in the project root directory where your .csproj file is located.
  3. Run the command dotnet add package Syncfusion.Maui.Toolkit to install the Syncfusion® .NET MAUI Toolkit NuGet package.
  4. To ensure all dependencies are installed, run dotnet restore.

Prerequisites

Before proceeding, ensure the following are set up:

  1. Install .NET 9 SDK or later.
  2. Set up a .NET MAUI environment with JetBrains Rider 2024.3 or later.
  3. Make sure the MAUI workloads are installed and configured as described here.

Step 1: Create a new .NET MAUI project

  1. Go to File > New Solution, Select .NET (C#) and choose the .NET MAUI App template.
  2. Enter the Project Name, Solution Name, and Location.
  3. Select the .NET framework version and click Create.

Step 2: Install the Syncfusion® MAUI Toolkit NuGet package

  1. In Solution Explorer, right-click the project and choose Manage NuGet Packages.
  2. Search for Syncfusion.Maui.Toolkit and install the latest version.
  3. Ensure the necessary dependencies are installed correctly, and the project is restored. If not, Open the Terminal in Rider and manually run: dotnet restore

Step 3: Register Syncfusion handler

Make sure to add the namespace.

using Syncfusion.Maui.Toolkit.Hosting;

Register the Syncfusion toolkit handler in your CreateMauiApp method of MauiProgram.cs file to use Syncfusion controls.

builder.ConfigureSyncfusionToolkit();

Step 4: Import NumericEntry namespace

Add the following namespace in your XAML or C#.

xmlns:editors="clr-namespace:Syncfusion.Maui.Toolkit.NumericEntry;assembly=Syncfusion.Maui.Toolkit"
using Syncfusion.Maui.Toolkit.NumericEntry;

Step 5: Add the Numeric Entry component

The NumericEntry control enables numeric input and automatically blocks any alphabetic characters.

OnKeyFocus Mode: The entered value is validated immediately as the user types.
OnLostFocus Mode: The value is validated and updated when the control loses focus or when the Enter key is pressed. The value is then formatted based on the specified settings.

This ensures that only valid numeric input is accepted and displayed according to the defined format.

<editors:SfNumericEntry HorizontalOptions="Center" 
                        VerticalOptions="Center" 
                        CustomFormat="0.000" />
SfNumericEntry sfNumericEntry = new SfNumericEntry();
sfNumericEntry.HorizontalOptions = LayoutOptions.Center;
sfNumericEntry.VerticalOptions = LayoutOptions.Center;
sfNumericEntry.CustomFormat = "0.000";

.NET MAUI NumericEntry value editing

You can download the NumericEntry Getting Started sample from here.