Determine if the computer is connected to a network

Determine if the computer is connected to a network

The following piece of code uses the My.Computer.Network.IsAvailable property to determine whether or not the computer is connected to a network. This network could be the Internet or a local network; for as long as the computer is connected to one such network, the response retrieved will be positive.

Dim networkAvailable As Boolean = My.Computer.Network.IsAvailable

If networkAvailable Then
    MsgBox("The network is available")
    MsgBox("The network is unavailable")
End If

This Visual Basic (VB.NET) code snippet is used to check if a network connection is available and then display a message box indicating the network status:

  1. Declaring and Initializing networkAvailable:
    • Dim networkAvailable As Boolean = My.Computer.Network.IsAvailable
    • This line declares a Boolean variable networkAvailable and initializes it with the result of My.Computer.Network.IsAvailable. This property returns True if a network connection is available, and False otherwise.
  2. Conditional Check and Message Box Display:
    • The If...Else statement checks the value of networkAvailable.
    • If networkAvailable is True (meaning the network is available), it displays a message box with the text “The network is available”.
    • If networkAvailable is False, it shows a different message box stating “The network is unavailable”.

This code is typically used in applications that need to verify network availability before performing network-dependent operations.

Nathan Pakovskie is an esteemed senior developer and educator in the tech community, best known for his contributions to With a passion for coding and a knack for simplifying complex tech concepts, Nathan has authored several popular tutorials on C# programming, ranging from basic operations to advanced coding techniques. His articles, often characterized by clarity and precision, serve as invaluable resources for both novice and experienced programmers. Beyond his technical expertise, Nathan is an advocate for continuous learning and enjoys exploring emerging technologies in AI and software development. When he’s not coding or writing, Nathan engages in mentoring upcoming developers, emphasizing the importance of both technical skills and creative problem-solving in the ever-evolving world of technology. Specialties: C# Programming, Technical Writing, Software Development, AI Technologies, Educational Outreach

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