Check If Connected To Internet?
Sep 22, 2010I have no idea at all of how to get a simple True/False function to tell me if the user has any sort of internet connection
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Check If Connected To Internet + Image Available?
Oct 18, 2010Basically I want to have a picturebox which shows an embedded resource if not connected to the internet, and an online image if connected to the internet.I assume this can be done on the form load event, I just don't know the code for it. Basically this is the logic though:
-If 'http:/[url].... is available (therefore connected to internet)
-Picturebox1.Image = http:[url].....
-Else[code].....
How can I code that properly? Would putting it in the form load event work?
How To Check If Connected To The Internet Instantly?
Aug 23, 2011How to check if connected to the internet instantly?
It must support proxi and windows xp,too.
Detecting If Internet Is Connected?
Aug 19, 2010How can I check through my application if computer is connected with internet or not (at the moment)I need a message if net is connected.
View 3 RepliesWeb Browser Navigation And Not Connected To The Internet
Aug 9, 2009WebBrowser1.Navigate("www.google.com"), it doesn't load. It opens the same webpage you get when you try to navigate to a page and you're not connected to the internet. Also, I opened a webpage that was saved on my computer, and that webpage had a link to a website on the internet, and when I clicked on it, it worked just fine! It's not my internet, what is it then? Here's the snippet of my code:
[Code]...
WebBrowser Control When Not Connected To The Internet?
Sep 29, 2011I have a WebBrowser control on one of my forms to provide information to users when they use my program. If the user is connected to the Internet it works fine.But if they are not connected to the internet, it shows the Internet Explorer message saying that there are connection problems.
View 5 RepliesProgram To Disconnect User From There Internet That They Are Currently Connected To?
Aug 5, 2009Is there anyway that i can get a program to disconnect the user from there internet that they are currently connected to?
View 21 RepliesVS 2005 Checking Whether The Client Is Connected To The Internet Or Not?
Mar 13, 2010I have written a code for sending emails using my vb.net application,ok.Now i want to inform my client if and only if he is not connected to the internet before the sending emails.so it means the purpose of my code will be to check if he is online or nt and if not then inform him to get online and then try sending the email.How to do this?
View 5 RepliesC# - Find Through Which Network Device User Is Connected To Internet?
Apr 1, 2011Using the code below i will get all network interfaces wich are enabled and functional on the machine.
Private netIntrfc As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()
For i As Integer = 0 To netIntrfc.Length - 1
If netIntrfc(i).OperationalStatus = OperationalStatus.Up Then
[code]....
But my problem is how to get the default one, the one(ethernet adapter) through wich user is connected to internet?I need to change some settings of default(through wich user is connected to internet) adapter. settings i change through registry so i could sample add same settings for each network interface but that could cause problems and makes no point then?
EDITED:for now i have done like code below, so if this can help someone other...
Dim u As UdpClient = New UdpClient(System.Net.Dns.GetHostName, 1)
Dim localAddr As IPAddress = CType(u.Client.LocalEndPoint, IPEndPoint).Address
Private netIntrfc As NetworkInterface() = NetworkInterface.GetAllNetworkInterfaces()
[code]....
Make A Program(vb2008) To Confirm It's Connected Internet Or Not?
Sep 17, 2010I want to write a program that if ping www.microsoft.com is success,than caption title it's "ok,connected Internet",if ping it's failed,the program "caption" title is "sorry,not connected",but I don't know how to write those code
View 10 RepliesSetup A Local DB To Sync With A Server Once Connected To The Internet?
Jan 1, 2012How would i go about seting up a local database to store data so it can be used offline then to sync up with SQL server 2008 r2. i've got to the point of having a test project with a local DB that stores the data and a test SQL server but know idea how to set it up to sync with between databases.
View 2 Replies[2005] Internet Explorer Connected With Visual Studio?
Feb 26, 2009I'm interested in how to open Internet Explorer from Visual BasicAlready, I have this:WebBrowser1.Navigate(TextBox1.Text)And this open Internet Explorer, but I want that Internet Explorer open site with address from TextBox in VB
View 2 RepliesCheck When Serialport Is REALLY Connected?
Mar 16, 2009I want to send some data through a serialport (USB) permanently and got a problem once the USB interface crashes. Sometimes it just happens, but if I ask the PC "serialport2.isopen ()" I will get a TRUE, even though the USB cable was uplugged. How can I check if a connection is still available. CDHolding wasnt working either. I am using VB 2008 Express
View 7 RepliesReliably Check If A User Is Connected Via The LAN?
Mar 6, 2009I have a requirement that users be connected via the LAN for a small service I am writing. Simply check My.Computer.Network.IsAvailable isn't enough because that will detect any network (e.g. wifi). I need to check whether or the user is LAN connected (and can therefore connect to an Oracle DB)
View 1 RepliesHow To Check If Successfully Connected In Ms Sql 2008 In Silverlight
May 17, 2012i just want to ask about on how to check if i am successfully connected in ms sql 2008 in vb.net silverlight.
View 1 RepliesCheck If A Computer Is Connected To Domain Or Only A Local Network?
Oct 27, 2010i need to check if my Computer is connected with an Active Directory Domain or only in a Workgroup. Is this possible?
View 4 RepliesHow To Check Remote Server Connection Status Connected Or Not
Dec 27, 2011I am Using Visual Basic 2010. I want to check My Connection Status. Connected or not in Remote Server Connection (SQL Server 2008 R2). How To Check Connection Status..?
View 1 RepliesVS 2008 - Check If Client Is Connected To The Server By Starting A New Thread?
Sep 24, 2009I need to check if my client is connected to the server by starting a new thread. So in short I need a way to know if the client is still connected to the server.
Here is my
[code]...
Check For Internet Connectivity?
Aug 6, 2009How can I check for internet connectivity? I can't use the My.Computer.Network.IsAvailable, because that one returns true also when you only have a local network connection and no internet connection.
View 10 RepliesCheck If The Internet Connection Available?
Mar 30, 2012I need to check whether If the Internet Connection Is available or not
If My.Computer.Network.IsAvailable = True Then
Return My.Computer.Network.Ping("8.8.8.8")
Else
Return False
End If
Above code returns Whether the PC connected to the internet, But I can't Check It through out the Software, I am only Having Single Form.
How To Check Internet Connection
Dec 27, 2009Im trying to check my internet connection using just a button how do i do that?
View 2 RepliesHow To Check Internet Connectivity
Jul 18, 2009ade an application and it uses internet to connect to my private server database and send email sometimes.. and its working great until now that I noticed e bug in it When im not connected in internet and working with my application and then my application tries to send email or connect to my server database I got my application crashed so what I want to do is to make my application first detect if it has internet connectivity and then to connect to my server or send any mai
View 8 RepliesC# - Check Internet Connection In Silverlight?
Jul 1, 2010I'm writing a Silverlight 4 application and would like to check when opening the installed out of browser application, whether there is a valid internet connection (to then download some data from my website). I realise that I could put a try catch around a WebRequest but that seems a bit hacky to me.
EDIT: What I meant by valid internet connection is just connected to the internet
Check If The Internet Connection Is Working Or Not?
Mar 4, 2011How I can check if the internet connection is working or not? i have to check every few seconds without getting stuck.
View 9 RepliesCheck Internet / Network Connection ?
Nov 19, 2011This is the work of one responder for the most part, and is not indicative of the quality of most of the posts.But you can judge that for yourself.
If you are writing a program that is used to monitor the status of your network, then this thread may not be of interest.
If you are an application programmer that uses network resources to accomplish your goal, i.e. you are using SMTP, FTP, HTTP, NNTP, NTP etc., and you think that you need to check for a connection first, then read on.Follow up to this.Before getting all geeky let's take a little detour...
Five days a week I get up, eat breakfast, check my email, forums, etc., take a shower, get dressed, and then drive to school.Many of you probably have a similar routine.What is interesting about that is not what we do, but what we dont do,because of our expectations and experience.Here is what I dont do.
I dont stick my finger in the electrical socket to see if there is electricity for the coffee maker and toaster.I dont fire up the command prompt and ping some host on the internet to see if I have connectivity.I dont check the battery, tires, water level, clutch fluid level, washer fluid level, etc.,before I drive off.
All of that is based on expectation and experience.So why would you write an application that pings the internet before it did something (SMTP, FTP, HTTP, NNTP, NTP etc)???? Is your experience or expectation that the network will be down?To illustrate and hopefully convince you that, like Oblio, it is pointless, create a new form with three buttons. In the following examples I use a WebRequest / WebResponse as my 'Something'.Here is what some think is a good approach, the classic ping-then-do, what I think you shouldn't do.[code]....What is wrong with this code is that all of the network IO is being done without a Try / Catch block.
Get An Application To Check Internet Connectivity?
Jan 10, 2012I need my application to check for internet connectivity on my user's computer. If there is, an image is displayed and if there isn't, a different image is displayed. Here's the code I used to get this to work:
Private Sub Window_Loaded(ByVal sender As System.Object, ByVal e As System.Windows.RoutedEventArgs) Handles MyBase.Loaded
If NetworkInformation.NetworkInterface.GetIsNetworkAvailable Then
Dim bi1 As New BitmapImage
[code]....
I decided to test this on my own computer by changing my default gateway (thereby making it seem as if I lost connection). But I realized that the code still showed that I was connected. So I'm thinking that it's only checking for connectivity of the interface - which in this case, is my connection to the router (which is true, I was connected to the router).How do I check that the user's PC is actually connected to the internet? I read the article Check for Internet connectivity but it's in C# and I don't understand that.
How To Check Internet Connection Availability
Nov 10, 2011We want to developed services to sending fax which should check internet connection after every 10 sec and should be work on all windows operating system.
I cannot use any host like[URL]..to check internet connection because it increase network traffic.
VS 2005 Check If Internet Is Available Before Connecting To Webservices?
Oct 7, 2009Is there a way in Win App to do a check whether internet is available before connecting to Webservices?
View 1 RepliesVS 2008 : Check If A Computer Has Access To The Internet?
Sep 1, 2010How to check if a computer has access to the internet?
View 2 RepliesChanging ToolStripStatusLabel Text To Connected If Connected To A Network
Apr 4, 2011On my program I am trying to make a ToolStripStatusLabel's text change to "connected" if connected to a network and if not connected to a network change the text to " Not Connected" then I don't know how to display a image if connected to a network or not connected. So if the computer is connected to a network I have a image that I would like to be displayed next to the ToolStripStatusLabel. And if not connected to a network, can the program display a different image? I tried this:
My.Computer.Network.IsAvailable=True(ToolStripStatusLabel2.Text "Connected")
My.Computer.Network.IsAvailable=False(ToolStripStatusLabel2.Text "Not Connected")