SweetAlert2 1.0.1

dotnet add package SweetAlert2 --version 1.0.1                
NuGet\Install-Package SweetAlert2 -Version 1.0.1                
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="SweetAlert2" Version="1.0.1" />                
For projects that support PackageReference, copy this XML node into the project file to reference the package.
paket add SweetAlert2 --version 1.0.1                
#r "nuget: SweetAlert2, 1.0.1"                
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
// Install SweetAlert2 as a Cake Addin
#addin nuget:?package=SweetAlert2&version=1.0.1

// Install SweetAlert2 as a Cake Tool
#tool nuget:?package=SweetAlert2&version=1.0.1                
Blazor
SweetAlert2
A beautiful, responsive, customizable, accessible (WAI-ARIA) replacement for JavaScript's popup boxes. All wrapped inside a Razor Component Library for use in Blazor Server and WebAssembly applications.
SweetAlert2 in action
See SweetAlert2 in action ↗
Master Develop Version Downloads Mergify
Nuget Nuget

This package is for both Blazor Server Apps and Blazor WebAssembly Apps.

🙌 Includes themes from the Official SweetAlert2 Themes project 🙌

Installation

Install-Package SweetAlert2

Or install from the NuGet Package Manager

Usage

Register the service in your Startup file.

// Startup.cs
public void ConfigureServices(IServiceCollection services)
{
...
 services.AddSweetAlert2();
...
}

NB: For newer .NET 6 minimal project templates, this will actually be in Program.cs

// Program.cs
...
builder.Services.AddSweetAlert2();

OR

If you want to use one of the Official SweetAlert2 themes:

// Startup.cs
public void ConfigureServices(IServiceCollection services)
{
...
 services.AddSweetAlert2(options => {
   options.Theme = SweetAlertTheme.Dark;
 });
...
}

See Configuration for more information.

Add the script tag

Add this script tag in your root html file (Likely _Host.cshtml for Blazor Server or index.html for Blazor WebAssembly), right under the framework script tag. (i.e <script src="_framework/blazor.server.js"></script> for Blazor Server or <script src="_framework/blazor.webassembly.js"></script> for Blazor WebAssembly)

NB: In newer templates, this will be towards the bottom of Pages/_Layout.cshtml for Blazor Server or wwwroot/index.html for Blazor WebAssembly.

<script src="_content/SweetAlert2/sweetAlert2.min.js"></script>

_Imports.razor

Recommended: Add @using SweetAlert2 to your _Imports.razor file, to avoid having to put the using call in every component that requires it.

Inject the SweetAlertService into any Blazor component.

// Sample.razor
@inject ISweetAlertService Swal;
<button class="btn btn-primary"
   @onclick="@(async () => await Swal.FireAsync("Any fool can use a computer"))">
 Try me!
</button>

Examples

The most basic message:

await Swal.FireAsync("Hello world!");

A message signaling an error:

await Swal.FireAsync("Oops...", "Something went wrong!", "error");

Handling the result of SweetAlert2 modal:

// async/await
SweetAlertResult result = await Swal.FireAsync(new SweetAlertOptions
 {
   Title = "Are you sure?",
   Text = "You will not be able to recover this imaginary file!",
   Icon = SweetAlertIcon.Warning,
   ShowCancelButton = true,
   ConfirmButtonText = "Yes, delete it!",
   CancelButtonText = "No, keep it"
 });

if (!string.IsNullOrEmpty(result.Value))
{
 await Swal.FireAsync(
   "Deleted",
   "Your imaginary file has been deleted.",
   SweetAlertIcon.Success
   );
}
else if (result.Dismiss == DismissReason.Cancel)
{
 await Swal.FireAsync(
   "Cancelled",
   "Your imaginary file is safe :)",
   SweetAlertIcon.Error
   );
}

// Promise/Task based
Swal.FireAsync(new SweetAlertOptions
 {
   Title = "Are you sure?",
   Text = "You will not be able to recover this imaginary file!",
   Icon = SweetAlertIcon.Warning,
   ShowCancelButton = true,
   ConfirmButtonText = "Yes, delete it!",
   CancelButtonText = "No, keep it"
 }).ContinueWith(swalTask =>
 {
   SweetAlertResult result = swalTask.Result;
   if (!string.IsNullOrEmpty(result.Value))
   {
     Swal.FireAsync(
       "Deleted",
       "Your imaginary file has been deleted.",
       SweetAlertIcon.Success
       );
   }
   else if (result.Dismiss == DismissReason.Cancel)
   {
     Swal.FireAsync(
       "Cancelled",
       "Your imaginary file is safe :)",
       SweetAlertIcon.Error
       );
   }
 });

More examples can be found on the SweetAlert2 project site

Configuration

In Startup.cs you have the opportunity to configure how sweetalert2 will behave in your application.

Theme

With SweetAlertServiceOptions.Theme you can specify one of the official sweetalert2 themes to apply to your modal throughout your application.

SetThemeForColorSchemePreference()

With the SweetAlertServiceOptions.SetThemeForColorSchemePreference() method, you can specify which theme the user uses, based on the result of their prefers-color-scheme CSS media query. Most commonly this can be used to help create a dark version of your application, based on user preference. Browsers that do not support the prefers-color-scheme media query will fall back to the theme specified in SweetAlertServiceOptions.Theme

Theme Examples

If you want the default theme by default, and the dark theme if the user prefers a dark color scheme:

services.AddSweetAlert2(options => {
 options.SetThemeForColorSchemePreference(ColorScheme.Dark, SweetAlertTheme.Dark);
});

A dark theme by default, and a lighter theme if the user prefers a light color scheme:

services.AddSweetAlert2(options => {
 options.Theme = SweetAlertTheme.Dark;
 options.SetThemeForColorSchemePreference(ColorScheme.Light, SweetAlertTheme.Bootstrap4);
});

A minimal theme as a fallback, and a dark/light theme to match user preference:

services.AddSweetAlert2(options => {
 options.Theme = SweetAlertTheme.Minimal;
 options.SetThemeForColorSchemePreference(ColorScheme.Light, SweetAlertTheme.Default);
 options.SetThemeForColorSchemePreference(ColorScheme.Dark, SweetAlertTheme.Dark);
});

See prefers-color-scheme for more information.

Default Settings

If you want some settings globally applied to all of your SweetAlert2 dialogs, configure your default settings in Startup.cs

services.AddSweetAlert2(options => {
 options.DefaultOptions = new SweetAlertOptions {
   HeightAuto = false
 };
});

These can be overriden in individual FireAsync() calls.

NB: This will only apply to FireAsync() calls that take a SweetAlertOptions object as a parameter. The methods that take in primitive types bypass SweetAlertOptions entirely on both the C# and JS libraries.

Notable differences from the JavaScript library

  • No methods that return an HTMLElement are included (e. g. Swal.getHtmlContainer())
  • The value of a SweetAlertResult (result.Value) can only be a string. Numbers and booleans must be converted. Object must be parsed to/from JSON in your code.
  • DidOpenAsync(), WillCloseAsync(), WillOpenAsync(), and DidCloseAsync() can all take asynchronous callbacks. 🎉 (none will return an HTMLElement though.)
  • No support for <optgroup> in the select input type.
  • No async option for InputOptions or InputValue
  • Callbacks must be passed inside of objects specifically designed for the given callback property. e.g. the InputValidator property takes an InputValidatorCallback created like so:
new SweetAlertOptions {
 ...
 InputValidator = new InputValidatorCallback((string input) => input.Length == 0 ? "Please provide a value" : null, this),
 ...
}

this is passed in so that the Blazor EventCallback used behind the scenes can trigger a re-render if the state of the calling component was changed in the callback. If the callback does not require the calling component to re-render, passing in this is optional. These callbacks are necessary because there is currently no way to create an EventCallback in Blazor that isn't a component parameter without using the EventCallbackFactory which is clunky. It also allows the callback to return a value that can be used by the SweetAlert2 library. (e.g. A validation message to show if input validation fails.) Native Blazor EventCallbacks only return generic Tasks.

Browser compatibility

IE11 Edge Chrome Firefox Safari Opera UC Browser

Protestware

Currently, the original sweetalert2 library contains protestware to disable Russian websites using sweetalert2 when visited by Russian-speaking users. This wrapper library bypasses the effects of that protestware, so there should be no undesired effects when using this library.

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 is compatible.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 is compatible.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 is compatible.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

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Version Downloads Last updated
1.0.1 2,178 3/18/2024
1.0.0 245 2/26/2024