Getting Started with Blazor Linear Gauge in Server App

This section briefly explains about how to include the Blazor Linear Gauge component in a Blazor Server App using Visual Studio, Visual Studio Code, and the .NET CLI.

Create a new Blazor Server App

Create a Blazor Server App by using the Blazor Web App template in Visual Studio via Microsoft Templates or the Blazor Extension.

Run the following command to create a new Blazor Server App.

dotnet new blazor -o BlazorApp --interactivity Server
cd BlazorApp

Alternatively, create a Blazor Server App using Visual Studio Code via Microsoft Templates or the Blazor Extension, or the C# Dev Kit extension.

Run the following command to create a new Blazor Server App.

dotnet new blazor -o BlazorApp --interactivity Server
cd BlazorApp

NOTE

Configure the appropriate Interactive render mode and Interactivity location while creating a Blazor Server App. For detailed information, refer to the interactive render mode documentation.

Install the required Blazor package

Install the Syncfusion.Blazor.LinearGauge NuGet package. All Syncfusion Blazor packages are available on nuget.org. See the NuGet packages topic for details.

  1. Go to Tools → NuGet Package Manager → Manage NuGet Packages for Solution.
  2. Search the required NuGet package (Syncfusion.Blazor.LinearGauge) and install it.

Alternatively, you can install the same package using the Package Manager Console with the following commands.

Install-Package Syncfusion.Blazor.LinearGauge -Version 34.2.2

Open the terminal and run the following commands.

dotnet add package Syncfusion.Blazor.LinearGauge -v 34.2.2

Open the command prompt and run the following commands.

dotnet add package Syncfusion.Blazor.LinearGauge -v 34.2.2

Add import namespaces

After the package is installed, open the ~/Components/_Imports.razor file and import the Syncfusion.Blazor and Syncfusion.Blazor.LinearGauge namespaces.

@using Syncfusion.Blazor
@using Syncfusion.Blazor.LinearGauge

Register the Blazor service

Open the Program.cs file in Blazor Server App and register the Blazor service.

....
using Syncfusion.Blazor;
....
builder.Services.AddSyncfusionBlazor();
....

Add script resource

The script can be accessed from NuGet through Static Web Assets. Include the script references in the ~/Components/App.razor file.

<script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>

Add Blazor Linear Gauge component

Open a Razor file located in the ~/Components/Pages/*.razor (for example, Home.razor) and add the Blazor Linear Gauge component inside the razor file.

NOTE

If the interactivity location is set to Per page/component, define a render mode at the top of the razor file. (For example InteractiveServer). If the Interactivity is set to Global, the render mode is automatically configured in the App.razor file by default.

@rendermode InteractiveServer

<SfLinearGauge>
    <LinearGaugeAxes>
        <LinearGaugeAxis>
            <LinearGaugePointers>
                <LinearGaugePointer></LinearGaugePointer>
            </LinearGaugePointers>
        </LinearGaugeAxis>
    </LinearGaugeAxes>
</SfLinearGauge>

Run the application

Press Ctrl+F5 (Windows) or ⌘+F5 (macOS) to launch the application. The Blazor Linear Gauge component will render in your default web browser.

Open the terminal and run the following command.

dotnet run

Open the command prompt and run the following command.

dotnet run
Blazor Linear Gauge Component

NOTE

View Sample in GitHub.

Set pointer value

Pointers are used to indicate values on an axis. You can change the pointer value using the PointerValue property in the Linear Gauge Pointer.

NOTE

In Linear Gauge, you can configure multiple axes. On each axis, you can add a pointer.

<SfLinearGauge>
    <LinearGaugeAxes>
        <LinearGaugeAxis>
            <LinearGaugePointers>
                <LinearGaugePointer PointerValue="40">
                </LinearGaugePointer>
            </LinearGaugePointers>
        </LinearGaugeAxis>
    </LinearGaugeAxes>
</SfLinearGauge>
Blazor Linear Gauge with Pointer Value

Add a title for Blazor Linear Gauge

The title can be added to the linear gauge to provide a piece of quick information to the users about the context of the rendered linear gauge. You can add the title to the linear gauge using Title property in SfLinearGauge.

<SfLinearGauge Title="Linear Gauge">
    <LinearGaugeAxes>
        <LinearGaugeAxis>
            <LinearGaugePointers>
                <LinearGaugePointer></LinearGaugePointer>
            </LinearGaugePointers>
        </LinearGaugeAxis>
    </LinearGaugeAxes>
</SfLinearGauge>
Blazor Linear Gauge with Title

Add ranges in the Blazor Linear Gauge

The range is used to specify a group of scale values in the gauge. You can set the range start and end using Start and End properties in the Linear Gauge Range. You can add any number of ranges for an axis using Linear Gauge Range.

<SfLinearGauge>
    <LinearGaugeAxes>
        <LinearGaugeAxis Minimum="0" Maximum="200">
            <LinearGaugeAxisLabelStyle Format="{value}°C"></LinearGaugeAxisLabelStyle>
            <LinearGaugePointers>
                <LinearGaugePointer PointerValue="140">
                </LinearGaugePointer>
            </LinearGaugePointers>
            <LinearGaugeRanges>
                <LinearGaugeRange Start="0" End="80" Color="#ff5985"></LinearGaugeRange>
                <LinearGaugeRange Start="80" End="120" Color="#ffb133"></LinearGaugeRange>
                <LinearGaugeRange Start="120" End="140" Color="#fcde0b"></LinearGaugeRange>
                <LinearGaugeRange Start="140" End="200" Color="#27d5ff"></LinearGaugeRange>
            </LinearGaugeRanges>
        </LinearGaugeAxis>
    </LinearGaugeAxes>
</SfLinearGauge>
Blazor Linear Gauge with Range Bar

See also

  1. Getting Started with Blazor WebAssembly App in Visual Studio
  2. Getting Started with Blazor Server App in Visual Studio