Check Internet Connectivity To Private Server Database
Oct 25, 2009
i made 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 mail to be more specific i want to make a loop to check for internet connectivity all the time and in that moment that im not connected to internet to stop trying to connect to my server...
How 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.
ade 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
I 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
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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.
I am trying to verify connectivity from my application to various servers - For now I am only concerned with mail servers... (later SQL etc)Before anyone gets all upset and thinking this is for SPAM - wrong - these are to confirm connectivity from the application for sending logs OR to ensure the SQL conneciton is working appropriately - Those that want to SPAM can do this simply by getting LINUX and doing it for free with ANY mail client (I add this ONLY because MOST SMTP threads go unanswered... which is silly... there are MANY good reasons to work with mail within an application.....)So what I have tried is opening a telnet session, grabbing the output, and going from there...But it is not working.... the output contains nothing specific to the telnet session I initiate - and.... of course from the command prompt manually i DO get the proper responses
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I get the command prompt header, I see the commands... I see the prompts... but after the telnet command there is nothing I am assuming there is an issue redirecting telnet info and the telnet session terminates the second I try to read the data
I am using Visual Studio 2010. I want to do database connectivity using VB.Net and MS SQL Server 2005. I know 1 way of doing this. Following are the steps...
1. Create a new Data Source Using Data Sources Window. 2. Select the appropriate view like details view/ data grid view for that data source 3. Drag that data source on your form and connectivity is done. Also all the controls are created by the visual studio.
This feature is really cool but I want to learn database connectivity by pure coding without using such advanced features. Also is it possible to do connectivity from a class library ?
I saw another forum which discussed how to detect whether a LAN was connected, but I need to know whether my Internet connection from my ISP is up or not (I'm writing a program for day trading, so knowing if my internet connection is down is critical). I know I can simply open a browser in VB and browse to a site and see if it doesn't come back "page not found", but that involves a fair amount of overhead, and if the internet is down, it often takes many seconds to a minute to come back with "page not found". Is there some simple command that will quickly tell me that my internet connection is working? I'm using VB in VS 2008, and currently using XP although I plan to convert to Windows 7 in the next couple months.
How do I check the connectivity to Remote Desktop through Visual Basic (if possible). I would like to run a program checking if servers is up running normally. In some cases servers will respond to ping, without being able to connect to RDP. It would be great to a program being able to detect loss of RDP-connectivity almost as soon as any problems appear.
What is the difference between vb.net application and asp.net application? How can I publish an ASP.Net application with database residing in the server and user could update that through internet?
I m working on an school management application, i design the database in access2003 and forms in vb.net2005. but i dont have any idea about the database conectivity. with the help of a book to connect with the db but i cannot save the data in the mdb file. in my application 1 add the followin buttons add new record modify record delete search using id or enrolment no.
I have a database created and tables inserted into it. One of the tables is called UserLogin. It consists of two columns, BarcodeId and Technician. I have a barcode value, and what I am trying to do is check if any of the values in the BarcodeId column of this table is equal to the barcode that I have. Then when I get a match, I want to get the Technician that matches that BarcodeId and display the Technician in a text box.
I was using this code sample:
Private Sub HasRows(ByVal connection As SqlCeConnection) Using connection Dim command As SqlCeCommand = New SqlCeCommand( _
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I'm not sure if I am on the rught track or not, when the code gets to the line connection.Open during debugging, nothing seems to happen.
I was maked a application in visual studio 2008 using language vb & now i want to connect with database so plz mail the steps required for database connectivity using ms access or sql server.
I want to connect my Desktop application (VB.Net) to my Database (SQL server 2005). The problem is my Database is in the other country.In my local network my application works fine.I am using IP address for connect database. for example : my IP addrees is 222.22.22.22.
I am using the following code to establish a database connection to my datagridview and Access database. Here I am giving my file path name to the connection. This code works fine only on my computer. To make this code run on another computer I need to change the database pathname in the code. Is there anyway I can make this connection dynamic so that I can make this program run on any computer
Dim Data1 As OleDbConnection = New OleDbConnection("Provider=Microsoft.jet.oledb.4.0;data source=C:\Users\Desktop\Work\Visual basic\alldata.mdb") Dim Case1 As OleDbCommand = New OleDbCommand("SELECT * FROM case1", Data1)
give me the source code to add database connectivity in VB2010 express through ADO.Net. Including all the commands to add, update, delete, retrieve and modify the database fields. It would be really helpful if anyone can provide me with a small prototype working model with the source code.
2 insert d code to move 2 d next record of the database in a table that has one CHECKBOX? i tried using the regular method of heckbox1=.Item("BookingStatus").ToString
I'm studying Visual Basic (using Visual Studio 2008) as part of an all-round IT foundation degree...I must confess that programming is becoming my weak spot! Unlike the C++ I was taught last year, I'm not finding VB too easy...probably becasue I've never programmed this way before and I've missed a couple of lessons.
I have an application, I want to connect my database in SOL Server Authentication mode(mixed mode), Hence When I connecting my database through connection string. then what parameter to be passed or what to be checked.
