VB NET Check internet connection

 Check Internet Connection using VB 2010

Using VB.NET to check Internet Connection status

This is a very simple example of how to check if there is an internet connection available for your machine (LapTop, PC) using VB 2010 Programming Language.

- Project Design :

1) Create new project, (save it)

2) Create new Windows Application form (Form1)

3) Place a Label (Label1) and Timer (Timer1) on your Form (Form1).

VB.NET Check Internet Connection

- Coding

In the following VB.NET Code I'm using two Functions to (Boolean) :

1. Check internet connection using Computer.Network.Ping("google.com")
2. Check internet connection Using stream = client.OpenRead("http://www.google.com")

	'Visual Basic Online Courses
	'VB.Net How to check internet connectivity
	'Create new Form [Form1], place [Timer1],[Label1] Controls on Form1.
	Public Class Form1
	Function IsConnected() As Boolean
	'Checks the internet connection
	If My.Computer.Network.Ping("google.com").ToString = True Then
	Label1.Text = ("Connected")
	Label1.ForeColor = Color.Green
	Else
	Label1.Text = ("No Connection")
	Label1.ForeColor = Color.Red
	End If
	Return True
	End Function
	Private Sub Form1_Load(ByVal sender As System.Object, _
	ByVal e As System.EventArgs) Handles MyBase.Load
	Timer1.Enabled = True
	End Sub
	Private Sub Timer1_Tick(ByVal sender As System.Object, _
	ByVal e As System.EventArgs) Handles Timer1.Tick
	'Check if there is an internet connection is available.
	IsConnected()
	End Sub
	'Another function to check for internet connectivity
	Public Function CheckForInternetConnection() As Boolean
	Try
	Using client = New WebClient()
	Using stream = client.OpenRead("http://www.google.com")
	Return True
	End Using
	End Using
	Catch
	Return False
	End Try
	End Function
	End Class

view raw gistfile1.vb hosted with ❤ by GitHub

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