My.Computer.Network.IsAvailable Property 

Indicates whether a computer is connected to a network.

' Usage
Dim value As Boolean = My.Computer.Network.IsAvailable
' Declaration
Public ReadOnly Property IsAvailable As Boolean

Return Value

Boolean.

Remarks

IsAvailable always returns False when called from a Click Once application or if the user does not have NetworkInformationPermission.

Tasks

The following table lists examples of tasks involving the My.Computer.Network.IsAvailable property.

To	See
Check whether a computer is connected to a network	How to: Check Connection Status in Visual Basic

Example

This example checks the property's status and reports it.

If My.Computer.Network.IsAvailable = True Then
    MsgBox("Computer is connected.")
Else  
    MsgBox("Computer is not connected.")
End If

Requirements

Namespace: Microsoft.VisualBasic.Devices

Class: Network

Assembly: Visual Basic Runtime Library (in Microsoft.VisualBasic.dll)

Availability by Project Type

Project type	Available
Windows Application	Yes
Class Library	Yes
Console Application	Yes
Windows Control Library	Yes
Web Control Library	Yes
Windows Service	Yes
Web Site	Yes

Permissions

The following permissions may be necessary:

Permission	Description
FileIOPermission	Controls the ability to access files and folders. Associated enumeration: Unrestricted.
WebPermission	Controls rights to access HTTP Internet resources. Associated enumeration: Unrestricted.

For more information, see Code Access Security and Requesting Permissions.

See Also

Tasks

How to: Determine if a Remote Computer is Available in Visual Basic

Reference

My.Computer.Network Object
Microsoft.VisualBasic.Devices.Network.IsAvailable