Getting Started with .NET MAUI Linear Gauge

26 Jan 202411 minutes to read

This section explains the steps required to add the .NET MAUI Linear Gauge control and its elements such as scale, range, and pointer. This section covers only basic features needed to get started with Syncfusion linear gauge control.

To get start quickly with our .NET MAUI Linear Gauge, you can check the below video.

Creating an application using the .NET MAUI Linear Gauge

• Create a new .NET MAUI application in the Visual Studio.

• Syncfusion .NET MAUI components are available on nuget.org. To add SfLinearGauge to your project, open the NuGet package manager in Visual Studio, search for [Syncfusion.Maui.Gauges] then install that.

• Import the control namespace Syncfusion.Maui.Gauges in XAML or C# code.

  XAML

  xmlns:gauge="clr-namespace:Syncfusion.Maui.Gauges;assembly=Syncfusion.Maui.Gauges"

  C#

  using Syncfusion.Maui.Gauges;

• Initialize the SfLinearGauge control

  XAML

  <gauge:SfLinearGauge />

  C#

  SfLinearGauge gauge = new SfLinearGauge();
  this.Content = gauge;

Register the handler

Syncfusion.Maui.Core NuGet is a dependent package for all Syncfusion controls of .NET MAUI. In the MauiProgram.cs file, register the handler for Syncfusion core.

~/MauiProgram.cs

using Microsoft.Maui;
using Microsoft.Maui.Hosting;
using Microsoft.Maui.Controls.Compatibility;
using Microsoft.Maui.Controls.Hosting;
using Microsoft.Maui.Controls.Xaml;
using Syncfusion.Maui.Core.Hosting;

namespace GaugeMauiSample
{
    public static class MauiProgram
    {
        public static MauiApp CreateMauiApp()
        {
            var builder = MauiApp.CreateBuilder();
            builder
            .UseMauiApp<App>()
            .ConfigureSyncfusionCore()
            .ConfigureFonts(fonts =>
            {
                fonts.AddFont("OpenSans-Regular.ttf", "OpenSansRegular");
            });

            return builder.Build();
        }
    }
}

Add range to the linear gauge

Ranges contain a list of range elements, to which you can add any number of ranges inside the scale. You can specify the start value, end value, and background color for range using the StartValue, EndValue, and Fill properties as shown in the following code sample.

XAML

<gauge:SfLinearGauge>
                <gauge:SfLinearGauge.Ranges>
                    <gauge:LinearRange/>
                </gauge:SfLinearGauge.Ranges>
            </gauge:SfLinearGauge>

C#

SfLinearGauge gauge = new SfLinearGauge();
        LinearRange range = new LinearRange();
        gauge.Ranges.Add(range);
        this.Content = gauge;

Add pointer to the linear gauge

Pointers contain a list of pointer elements, in which you can add any number of gauge pointers such as BarPointer, ShapePointer, and ContentPointer inside the scale to indicate the value.

XAML

<gauge:SfLinearGauge>
                ..
                 <gauge:SfLinearGauge.MarkerPointers>

                    <gauge:LinearShapePointer Value="70"/>

                    <gauge:LinearContentPointer Value="80">
                        <gauge:LinearContentPointer.Content>
                            <Image Source="pin.png" HeightRequest="20" 
                                   WidthRequest="20"/>
                        </gauge:LinearContentPointer.Content>
                    </gauge:LinearContentPointer>
                </gauge:SfLinearGauge.MarkerPointers>

                <gauge:SfLinearGauge.BarPointers>
                    <gauge:BarPointer Value="60"/>
                </gauge:SfLinearGauge.BarPointers>

            </gauge:SfLinearGauge>

C#

SfLinearGauge gauge = new SfLinearGauge();
        ...

        LinearShapePointer shapePointer = new LinearShapePointer();
        shapePointer.Value = 70;
        gauge.MarkerPointers.Add(shapePointer);

        LinearContentPointer contentPointer = new LinearContentPointer();
        contentPointer.Value = 80;
        contentPointer.Content = new Image() { Source = "pin.png", HeightRequest = 20, WidthRequest = 20 };
        gauge.MarkerPointers.Add(contentPointer);

        BarPointer barPointer = new BarPointer();
        barPointer.Value = 60;
        gauge.BarPointers.Add(barPointer);
        this.Content = gauge;

The following code example gives you the complete code of above configurations.

XAML

<gauge:SfLinearGauge x:Name="gauge" >
                <gauge:SfLinearGauge.Ranges>
                    <gauge:LinearRange/>
                </gauge:SfLinearGauge.Ranges>

                <gauge:SfLinearGauge.MarkerPointers>
                    <gauge:LinearShapePointer Value="70"/>

                    <gauge:LinearContentPointer Value="80">
                        <gauge:LinearContentPointer.Content>
                            <Image Source="pin.png" HeightRequest="20" 
                                   WidthRequest="20"/>
                        </gauge:LinearContentPointer.Content>
                    </gauge:LinearContentPointer>
                </gauge:SfLinearGauge.MarkerPointers>

                <gauge:SfLinearGauge.BarPointers>
                    <gauge:BarPointer Value = "60"/>
                </gauge:SfLinearGauge.BarPointers>
            </gauge:SfLinearGauge>

C#

SfLinearGauge gauge = new SfLinearGauge();
        
        LinearRange range = new LinearRange();
        gauge.Ranges.Add(range);
        
        LinearShapePointer shapePointer = new LinearShapePointer();
        shapePointer.Value = 70;
        gauge.MarkerPointers.Add(shapePointer);

        LinearContentPointer contentPointer = new LinearContentPointer();
        contentPointer.Value = 80;
        contentPointer.Content = new Image() { Source = "pin.png", HeightRequest = 20, WidthRequest = 20 };
        gauge.MarkerPointers.Add(contentPointer);

        BarPointer barPointer = new BarPointer();
        barPointer.Value = 60;
        gauge.BarPointers.Add(barPointer);

        this.Content = gauge;

NOTE

View sample in GitHub

NOTE

You can refer to our .NET MAUI Linear Gauge feature tour page for its groundbreaking feature representations. You can also explore our .NET MAUI Linear Gauge Example that shows you how to render the Linear Gauge in .NET MAUI.