I 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 RepliesI'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 RepliesI have a function to check for internet availability where I use:
My.Computer.Network.IsAvailable
However it only works in my computer. If I install the application in another computer, the check does not work. Does it has anything to do with My keyword?
I 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
View 14 RepliesHow 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 RepliesBasically 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?
It must support proxi and windows xp,too.
WebBrowser1.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]...
I 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 RepliesIs there anyway that i can get a program to disconnect the user from there internet that they are currently connected to?
View 21 RepliesUsing 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]....
I 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 RepliesHow 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 RepliesMy first post here in vb forums. I'm new to sockets programming since I migrated from Winsock and I learn a lot from Atheist. using his code, I can't access the messageReceived() every time a client sends a message on the server. but then I put a code to catch the message on sub doRead() and I can retrieve the message. My problem now is how can I determine if a client is still connected to the server or not so I can delete it on the ConnectedClient ?
[Code]...
Note: the server runs on Win7 x64 ultimate and the clients are laptops on win7 x86. I read a comment that the server should be having a static IP address, but when did it together with the clients, It still doesn't work. I am just using a switch for the network.
Is their a way to give every client that is connected to the server an ID.
EX: SendMessage(Client.ID,"Hello")
I am a new member that has just start coding. Im currently working on a small application for a desktop that will give me information from my system. I have code that works but might not be great. I have code that checks that the network is connected but need it to keep checking and updating. I Have tryed loops, goto and timers but not having any luck. Can anyone help point me in right direction. Here is my code so far.
Public Class Form1
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Label1.Text = TimeOfDay
Label8.Text = "Time :"
[CODE].........................
I'm trying to make a client and a server connected in vb 2010. how to make a client and server connected? There is only vb2008 in the codebank and if my vb2010 tries to convert it to vb 2010 it will error.
View 1 Repliesi have made tcp connection to this webpage using tcpclienti can send commands like GET /Pagename.aspx to get the htmlnow is it possible that from webpage.aspx i can get the connected client stream and write to it and tcpclient gets that data ?
View 1 RepliesI 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]...
I have a simple tcp server listening for clients. I use a mud client to test if it's working. The mud client says that it's connected to 127.0.0.1, but the server doesn't show the msgbox that a client has connected.[code]
View 3 RepliesChecking the Internet Connectivity?[URL]
View 1 RepliesIs there any better performance by checking for a true value like this:
[CODE]..............
Than like this:
[CODE]..............
I would like to ask how to connect our application to connected computers in a LAN.Will I use the winsock control?How can I run queries using a server database?Any answers are welcome.
View 3 RepliesI've project where i wanna check if user is connected to internet if he isn't then form must close and another form should show up ! Problem i'm getting is i can't use check it constantly, even if i use while loop
keep looping the following code until condition is wrong or until connection is made
While IsConnectionAvailable() = False
' code goes here for when connection to hotflask can't be made[code].....
but here form 2 keep showing up and it crashes system, is there any simple way to do it .
I have been using the code below to tell if the computer has an internet connection. It works fine on my home computer but when I run it at work on our network which has internet, it fails. I can go to the sites I use below in my browser but when this is run in my app, it returns false. Any ideas why? Is there a better way i should be checking?
[Code]...
I'm trying to serialize an object so that I can send it over the internet to another client. There is 1 problem however I wrote the code and it threw an exception, I searched google to see what I had done wrong.
[Code]....
Can someone please help me create a very very simplistic sample page as the chat page included is too coomplete. something as simple as detecting a change in the database and displaying the word "change" on screen in realtime for any client connected.and I tried creating a global.asax file into which I added in the line mentioned in the link above, but it does not seem to like the word "Setup" in the line [code]
View 2 RepliesI have a MDI App. connected to SQL Server 2005 database via ODBC, and there are two forms in MDI Parent form, called form1 & form2, both of the forms are contain a datagrid.
The problem that I have when try to save data from datagrid, enven thus, it says the data saved, but there are no data have been saved,and this is an intermittent problem.
I'm new to Visual Basic, VS2005.I've added a Table to the WebForm. At Default.aspx this code was added automatically:
[Code]...
On 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")