Getting Started with Blazor Range Selector (RangeNavigator) Component

30 Jan 20245 minutes to read

This section briefly explains about how to include Blazor Range Selector component in your Blazor Server App and Blazor WebAssembly App using Visual Studio.

Prerequisites

Create a new Blazor App in Visual Studio

You can create a Blazor Server App or Blazor WebAssembly App using Visual Studio via Microsoft Templates or the Syncfusion Blazor Extension.

Install Syncfusion Blazor RangeNavigator and Themes NuGet in the App

To add Blazor Range Selector component in the app, open the NuGet package manager in Visual Studio (Tools → NuGet Package Manager → Manage NuGet Packages for Solution), search and install Syncfusion.Blazor.RangeNavigator and Syncfusion.Blazor.Themes. Alternatively, you can utilize the following package manager command to achieve the same.

Install-Package Syncfusion.Blazor.RangeNavigator -Version 26.1.35
Install-Package Syncfusion.Blazor.Themes -Version 26.1.35

NOTE

Syncfusion Blazor components are available in nuget.org. Refer to NuGet packages topic for available NuGet packages list with component details.

Register Syncfusion Blazor Service

Open ~/_Imports.razor file and import the Syncfusion.Blazor and Syncfusion.Blazor.Charts namespace.

@using Syncfusion.Blazor
@using Syncfusion.Blazor.Charts

Now, register the Syncfusion Blazor Service in the ~/Program.cs file of your Blazor Server App or Blazor WebAssembly App.

using Microsoft.AspNetCore.Components;
using Microsoft.AspNetCore.Components.Web;
using Syncfusion.Blazor;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
builder.Services.AddRazorPages();
builder.Services.AddServerSideBlazor();
builder.Services.AddSyncfusionBlazor();

var app = builder.Build();
....
using Microsoft.AspNetCore.Components.Web;
using Microsoft.AspNetCore.Components.WebAssembly.Hosting;
using Syncfusion.Blazor;

var builder = WebAssemblyHostBuilder.CreateDefault(args);
builder.RootComponents.Add<App>("#app");
builder.RootComponents.Add<HeadOutlet>("head::after");

builder.Services.AddScoped(sp => new HttpClient { BaseAddress = new Uri(builder.HostEnvironment.BaseAddress) });

builder.Services.AddSyncfusionBlazor();
await builder.Build().RunAsync();
....

Add stylesheet and script resources

The theme stylesheet and script can be accessed from NuGet through Static Web Assets. Reference the stylesheet and script in the <head> of the main page as follows:

  • For .NET 6 Blazor Server app, include it in ~/Pages/_Layout.cshtml file.

  • For .NET 7 Blazor Server app, include it in the ~/Pages/_Host.cshtml file.

  • For Blazor WebAssembly app, include it in the ~/index.html file.

<head>
    ....
    <link href="_content/Syncfusion.Blazor.Themes/bootstrap5.css" rel="stylesheet" />
    <script src="_content/Syncfusion.Blazor.Core/scripts/syncfusion-blazor.min.js" type="text/javascript"></script>
</head>

NOTE

Check out the Blazor Themes topic to discover various methods (Static Web Assets, CDN, and CRG) for referencing themes in your Blazor application. Also, check out the Adding Script Reference topic to learn different approaches for adding script references in your Blazor application.

Add Blazor Range Selector component

Add the Syncfusion Blazor Range Selector component in the ~/Pages/Index.razor file.

<SfRangeNavigator>

</SfRangeNavigator>

Populate Blazor Range Navigator with Data

To bind the data for the Range Navigator component, assign a IEnumerable object to the DataSource property. It can also be provided as an instance of the DataManager.

@code {
    public class StockPrice
    {
        public DateTime Date { get; set; }
        public double Close { get; set; }
    }

    public List<StockPrice> StockDetails = new List<StockPrice>
    {
        new StockPrice { Date = new DateTime(2005, 01, 01), Close = 21 },
        new StockPrice { Date = new DateTime(2006, 01, 01), Close = 24 },
        new StockPrice { Date = new DateTime(2007, 01, 01), Close = 36 },
        new StockPrice { Date = new DateTime(2008, 01, 01), Close = 38 },
        new StockPrice { Date = new DateTime(2009, 01, 01), Close = 54 },
        new StockPrice { Date = new DateTime(2010, 01, 01), Close = 57 },
        new StockPrice { Date = new DateTime(2011, 01, 01), Close = 62 }
    };
}

Now map Date and Close fields from the datasource to XName and YName properties of the RangeNavigatorSeries and then set the StockDetails to DataSource property.

<SfRangeNavigator ValueType="RangeValueType.DateTime" IntervalType="RangeIntervalType.Years" LabelFormat="yyyy">
    <RangeNavigatorSeriesCollection>
        <RangeNavigatorSeries DataSource="@StockDetails" XName="Date" Type="RangeNavigatorType.Area" YName="Close"></RangeNavigatorSeries>
    </RangeNavigatorSeriesCollection>
</SfRangeNavigator>

Press Ctrl+F5 (Windows) or +F5 (macOS) to launch the application. This will render the Syncfusion Blazor Range Selector component in your default web browser.

Blazor RangeNavigator Component

NOTE

View Sample in GitHub.

See also