CoreSuite.Connectivity 1.0.0

CoreSuite Connectivity

CoreSuite.Connectivity is a lightweight .NET 8 service for checking internet availability and continuously monitoring connection changes.

It tests multiple well-known HTTPS endpoints and considers connectivity available when at least one responds successfully.

Features

• Asynchronous and synchronous availability checks.
• Continuous background monitoring.
• Configurable monitoring interval.
• Status-change, connection and disconnection events.
• No external package dependencies.
• Predictable cleanup through IDisposable.

Requirements

• .NET 8 or a compatible target framework

Installation

dotnet add package CoreSuite.Connectivity

Check once

Prefer the asynchronous API:

Using ConnectivityService As New Connectivity()
    Dim IsOnline As Boolean = Await ConnectivityService.IsAvailableAsync()
End Using

The synchronous alternative is:

Dim IsOnline As Boolean = ConnectivityService.IsAvailable()

Monitor continuously

Public Class MainForm
    Private ReadOnly ConnectivityService As New Connectivity()
    Public Sub New()
        InitializeComponent()
        ConnectivityService.MonitoringInterval = TimeSpan.FromSeconds(2)
        AddHandler ConnectivityService.ConnectivityChanged, AddressOf ConnectivityService_ConnectivityChanged
        AddHandler ConnectivityService.Connected, Sub(Sender, E) Debug.WriteLine("Connected")
        AddHandler ConnectivityService.Disconnected, Sub(Sender, E) Debug.WriteLine("Disconnected")
        ConnectivityService.StartMonitoring()
    End Sub
    Private Sub ConnectivityService_ConnectivityChanged(Sender As Object, E As ConnectivityEventArgs)
        Debug.WriteLine($"Internet available: {E.InternetAvailable}")
    End Sub
    Protected Overrides Sub OnFormClosed(E As FormClosedEventArgs)
        ConnectivityService.Dispose()
        MyBase.OnFormClosed(E)
    End Sub
End Class

Properties

Methods

Events

Important behavior

• Availability of one tested endpoint does not guarantee every internet service is reachable.
• IsConnected is the stored monitoring state. Use IsAvailableAsync() for a fresh result.
• Monitoring events may run outside the UI thread. Marshal UI changes when required.
• Set MonitoringInterval to a positive value.
• Dispose long-lived instances when their owner shuts down.

License

MIT License.

Repository

CoreSuite on GitHub