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
Property 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 |
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 |
|---|---|
Controls the ability to access files and folders. Associated enumeration: Unrestricted. |
|
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