Search results

Globalization in Blazor DateRangePicker component

Globalization is the combination of adapting the control to various languages by means of parsing and formatting the date or number Internationalization and also by adding cultural specific customizations and translating the text localization.

Blazor server side

Add UseRequestLocalization middle-ware in Configure method in Startup.cs file to get browser Culture Info.

Refer the following code to add configuration in Startup.cs file

using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Localization;

namespace BlazorApplication
{
    public class Startup
    {
        ....
        ....

        public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
        {
            app.UseRequestLocalization();
            ....
            ....
        }
    }
}

The Localization library allows you to localize default text content. The DateRangePicker component has static text that can be changed to other cultures (Arabic, Deutsch, French, etc.).

In the following examples, demonstrate how to enable Localization for DateRangePicker in server side Blazor samples. Here, we have used Resource file to translate the static text.

The Resource file is an XML file which contains the strings(key and value pairs) that you want to translate into different language. You can also refer Localization link to know more about how to configure and use localization in the ASP.Net Core application framework.

  • Open the Startup.cs file and add the below configuration in the ConfigureServices function as follows.
using Syncfusion.Blazor;
using System.Globalization;
using Microsoft.AspNetCore.Localization;

namespace BlazorApplication
{
    public class Startup
    {
        ....
        ....
        public void ConfigureServices(IServiceCollection services)
        {
            ....
            ....
            services.AddSyncfusionBlazor();
            services.AddLocalization(options => options.ResourcesPath = "Resources");
            services.Configure<RequestLocalizationOptions>(options =>
            {
                // define the list of cultures your app will support
                var supportedCultures = new List<CultureInfo>()
                {
                    new CultureInfo("de")
                };
                // set the default culture
                options.DefaultRequestCulture = new RequestCulture("de");
                options.SupportedCultures = supportedCultures;
                options.SupportedUICultures = supportedCultures;
                options.RequestCultureProviders = new List<IRequestCultureProvider>() {
                 new QueryStringRequestCultureProvider() // Here, You can also use other localization provider
                };
            });
            services.AddSingleton(typeof(ISyncfusionStringLocalizer), typeof(SampleLocalizer));
        }
    }
}
  • Then, write a class by inheriting ISyncfusionStringLocalizer interface and override the Manager property to get the resource file details from the application end.
using Syncfusion.Blazor;

namespace blazorCalendars
{
     public class SampleLocalizer : ISyncfusionStringLocalizer
    {

        public string Get(string key)
        {
            return this.Manager.GetString(key);
        }

        public System.Resources.ResourceManager Manager
        {
            get
            {
                return blazorCalendars.Resources.SyncfusionBlazorLocale.ResourceManager;
            }
        }
    }
}
  • Add .resx file to Resource folder and enter the key value (Locale Keywords) in the Name column and the translated string in the Value column as follows.
Name Value (in Deutsch culture)
DateRangePicker_ApplyText Anwenden
DateRangePicker_CancelText Stornieren
DateRangePicker_CustomRange Benutzerdefinierten Bereich
DateRangePicker_Days Tage
DateRangePicker_EndLabel Endtermin
DateRangePicker_Placeholder Wählen Sie einen Datumsbereich
DateRangePicker_SelectedDays Ausgewählte Tage
DateRangePicker_StartLabel Anfangsdatum
  • Finally, Specify the culture for DateRangePicker using locale property.
@using Syncfusion.Blazor.Calendars

<SfDateRangePicker Locale="de"></SfDateRangePicker>

Blazor WebAssembly

By default, the DateRangePicker week and month names are specific to the American English culture. It utilizes the Blazor Internationalization package to parse and format the date object based on the culture by using the official UNICODE CLDR JSON data.

The following steps explain how to render the DateRangePicker in German culture (‘de-DE’) in Blazor Web Assembly application.

  • Open the program.cs file and add the below configuration in the Builder ConfigureServices function as follows.
using Syncfusion.Blazor;
using Microsoft.AspNetCore.Builder;

namespace WebAssemblyLocale
{
    public class Program
    {
        public static async Task Main(string[] args)
        {
            ....
            ....
            builder.Services.Configure<RequestLocalizationOptions>(options =>
            {
                // Define the list of cultures your app will support
                var supportedCultures = new List<System.Globalization.CultureInfo>()
                {
                    new System.Globalization.CultureInfo("en-US"),
                    new System.Globalization.CultureInfo("de"),
                };

                // Set the default culture
                options.DefaultRequestCulture = new Microsoft.AspNetCore.Localization.RequestCulture("de");

                options.SupportedCultures = supportedCultures;
                options.SupportedUICultures = supportedCultures;
                options.RequestCultureProviders = new List<Microsoft.AspNetCore.Localization.IRequestCultureProvider>() {
                 new Microsoft.AspNetCore.Localization.QueryStringRequestCultureProvider()
                };
            });
            ....
            ....
        }
    }
}
  • Download the required locale packages to render the Blazor DateRangePicker component with specified locale.
  • To download the locale definition of Blazor components, use this link.
  • After downloading the blazor-locale package, copy the blazor-locale folder with required local definition file into wwwroot folder.
  • By default, the blazor-locale package contains the localized text for static text present in components like button text, placeholder, tooltip, and more.
  • Set the culture by using the SetCulture method.
@using Syncfusion.Blazor.Calendars
@inject HttpClient Http;

<SfDateRangePicker Locale="de"></SfDateRangePicker>

@code {
    [Inject]
    protected IJSRuntime JsRuntime { get; set; }
    protected override async Task OnInitializedAsync()
    {
        this.JsRuntime.Sf().LoadLocaleData(await Http.GetJsonAsync<object>("blazor-locale/src/de.json")).SetCulture("de");
    }
}

The output will be as follows.

DateRangePicker

Customize the localized text

You can change the localized text of particular component by editing the wwwroot/blazor-locale/src/{{locale name}}.json file.

[wwwroot/blazor-locale/src/de.json]

{
  "de": {
    "daterangepicker": {
        "placeholder": "Wählen Sie einen Bereich aus",
        "startLabel": "Wählen Sie Startdatum",
        "endLabel": "Wählen Sie Enddatum",
        "applyText": "Sich bewerben",
        "cancelText": "Stornieren",
        "selectedDays": "Ausgewählte Tage",
        "days": "Tage",
        "customRange": "benutzerdefinierten Bereich"
    }
  }
}

The output will be as follows.

DateRangePicker

Right-To-Left

The DateRangePicker supports RTL (right-to-left) functionality for languages like Hebrew and Hebrew to displays the text in the right-to-left direction. Use EnableRtl property to set the RTL direction.

The following code example initialize the DateRangePicker component in Hebrew culture.

@using Syncfusion.Blazor.Calendars
@inject HttpClient Http;

<SfDateRangePicker Locale="ar" EnableRtl=true></SfDateRangePicker>

@code {
    [Inject]
    protected IJSRuntime JsRuntime { get; set; }
    protected override async Task OnInitializedAsync()
    {  
        this.JsRuntime.Sf().LoadLocaleData(await Http.GetJsonAsync<object>("blazor-locale/src/ar.json")).SetCulture("ar");
    }

The output will be as follows.

DateRangePicker