I am trying to make a currency converter from a webservicex service - although it does take some time to load
Are there any other services i can use: if not what is the problem here...
The code i use goes to the right URL and displays something like this.[code]...
I am posting data to my website, i have a Dim request As WebRequest = urlgoeshere After I post, it redirects to another page. How do I pull that url of the redirect?
View 2 RepliesFor my work i'm making a console program that log in into a a website ([URL]) The problem is i can grab the login page and read out the viewstate & EventValidation But when i try to submit my login details i get a error.
View 1 RepliesI was wondering if someone could give me an example on how to log in on Live Mail, using WebRequest/Response.
View 8 RepliesIm trying to create a software which can post into yahoogroups.I've done trying to log in yahoomail but my problem is when I am going to post in yahoogroups, I am turning back in to yahoo log in page.
Here's my code so far:
Quote:
Imports System.IO
Imports System.Net
Imports System.Text
[code]....
i made a tcp/ip application using the .NET TcpListener class, my problem is that sometimes (about 30 / 4000) the connection between the client and the server got interrupted in the middle and the server response to the client is lost.is there a way to know if the server response was successfully sent to the client without the client response back?
View 9 RepliesDim pReq2 As WebRequest = WebRequest.Create("http://www.mysite.com/post.php?w=" & "TEST") pReq2.GetResponse()
View 5 RepliesI have a series of WebRequests in my app all formatted like this
Try
request.Timeout = 30000
' Get the response and read it to the end [HTML of a page]
[Code]....
After roughly 250 iterations of about 5-6 WebRequest per iteration, the app hangs and starts hitting the WebException "The remote name could not be resolved: 'hostnamehere' ". WebPages also don't load through my browser when this happens, I have to close the app for my internet to work again. This app is multithreaded and I was testing with 100 threads (in a threadpool, MaxThreadCount set to 20, addressof the sub which performs the WebRequests). A test with 20 threads yielded identical results - Same WebException also right around 250 iterations processing the same sub. I have tried setting the ConnectionLimit of the request to the thread count with no luck.
I have a 2 files here. One is my main form, and the other is a dialog I made. Now I'm trying to get enter code here the dialog to gradually obtain its transparency from a timer which I have on the dialong form:
If Me.Opacity = "100" Then
Timer1.Stop()
Timer1.Enabled = False
Else
Me.Opacity = Me.Opacity + 1
[Code]...
I have an app and it fails randomly sometimes because my internet is not so fast (my app uses the webbrowser). How can I make my app restart itself it it fails? Or make my app click button1 on my form if it fails.
View 1 RepliesI'm having an odd problem with an ASP.Net page.I'm getting an object not set error message when assigning a string literal to a variable. [code] And here is the code that the error is pointing to. The last line in this fragment is the line 10 the error is complaining about [code] It seems it fails on accessing any reference type, even if it is declared locally in the load function. I originally found the problem when Request. IsSecureConnection was nulling out on me. I eventually discovered I could replace it with the above code and fail in the same way. The problem does not always happen. It seems to be triggered by publishing an update from Visual Studio, or when I head home for the day and the server sits idle all night. One or two app pool recycles seems to clear it up, and the page functions correctly. I've been doing desktop development for a few years, but I'm fairly new to web development.So maybe this is something obvious I've got configured wrong. I'm currently using .Net 4 on IIS 6. That code is in a foreach over an IEnumerable(of XElement). The stack trace still points to the string assignment, but all other stack traces are spot on, so I don't think it's a bad pdb.Also, when the error occurred this time, no amount of recycling the app pool or stopping and starting it would fix the error. I finally got it working again by switching the application to a different app pool.
View 2 RepliesI have 2 tables which I want to insert data into, table "CAM" and table "COut", after inserting data in "CAM" it shall return a retAutoID which will be hand to "COut" as one of the parameter required for it's insertion. I implemented a rollback in my Business Logic such that if "Cout" hits an exception error while inserting, the previous insertion for "CAM" will rollback even if successful.With the code below, I am getting this error after trying to do perform insertion:"ExecuteNonQuery requires the command to have a transaction when the connection assigned to the command is in a pending local transaction. The Transaction property of the command has not been initialized." [code]
View 2 RepliesI am trying to use httpwebrequest but I keep getting a message that says "Create is not a member of webrequest" every time I try and use the msn example code.
vb
Dim myReq As HttpWebRequest = WebRequest.Create("http://www.contoso.com/")
I dont know what i did wrong Here is the code:Im trying to login to uploadee btw, a paid per download site.
Dim Postdata As String = "sec_login=sec_user_in&email_two=" & TextBox1.Text & "%40hotmail.com" "&password_two="& TextBox2.Text & "&x=0&y=0"
Dim tempcookies As CookieContainer
[code].....
Variable 'encoding' is used before it has been assigned a value. A null reference exception could result at runtime.Variable 'tempcookies' is used before it has been assigned a value. A null reference exception could result at runtime.
I am trying to implement the webrequest get and post methods. I am accessing a secure site that requires login authentication and was told that instead of sending a login request all the time; login to the site and capture the cookie and use this to send it in the header to get results from the page. In other words let us use google for example.
Lets say google required u to login before searching for something. Now I login through my browser and leave the site logged in. Now I send a httwebrequest from my program that includes the cookie authentication details in the request header and get results for say ?param=sports. Now when I increment the page number like &page=3, I am still only getting page 1 results. Here is some code:
[Code]...
I would like to search an online (internet) database and import the result in my own Windows program. As I understand from reading and searching I first have to do a get from the default (search) page to get the cookies for instance and then do a post providing the filled input fields and adding the previously collected cookies. So far getting the information seems to work but submitting the data back to get the actual search result doesn't seem to work. This is what I have so far: [code]Anybody that can point me in the right direction? I my assumption correct that I first have to do a Get and then Post the correct data back?
View 3 RepliesI think this is a simple question for you, but I don't understand other cases of webRequests, so I asked here: How can I make this webRequest asynchronous?
Dim sBuffer As String
Dim oRequest As WebRequest = WebRequest.Create(url)
oRequest.Method = "GET"
Dim oResponse As WebResponse = oRequest.GetResponse()
Dim oStream As New StreamReader(oResponse.GetResponseStream())
[Code] .....
Does anyone at least have some related links on fetch requests and scraping?I am trying to implement the webrequest get and post methods. I am accessing a secure site that requires login authentication and was told that instead of sending a login request all the time; login to the site and capture the cookie and use this to send it in the header to get results from the page. In other words let us use google for example. Lets say google required u to login before searching for something. Now I login through my browser and leave the site logged in. Now I send a httwebrequest from my program that includes the cookie authentication details in the request header and get results for say ?param=sports. Now when I increment the page number like &page=3, I am still only getting page 1 results.[code]
View 1 RepliesThe current version of my application was using the WebClient object to download files from the internet and all was working well until some users reported that they were getting server timeouts. I looked into this issue and decided to move to the WebRequest object as it allows me to specify a Timeout value. The problem is, when using it synchronously, if I specify a timeout value of -1, I am worried that in the event of some weird server anamoly, my application would hang as it would be waiting for a response that isn't coming. So then I thought of using the WebRequest ansynchronously.
[Code]....
I am still learning about Get / Post statements in VB, and wondering if you have to call the Get commands to images, and what not, or just the main Post / Get statement and the rest will auto-load?
View 1 RepliesI've got an problem with my GUI. My program has to request a couple of websites (POST) and then store the responses in local files.While requesting the sites, a GUI textbox (tbLog) should inform the user, what site actually is being requested and a "STOP" butten should enable the user to stop the whole process.Now, when I start work, the GUI freezes and the user cannot do anything until all websites are done. There is no update of tbLog.text at all and no stop button can be pressed.Me.Refresh() does not help, to.[code]
View 2 RepliesI have a loop with WebRequest objects which I declare every iteration. I thought it would be more efficient to declare them outside of the loop and only modify the one parameter that changed but it didn�t work. Why is that? It seems like the loop acts like a subroutine or other block that kills it�s objects at the end of each iteration. Is this the case? It seems other global objects like a text box can be modified this way so why not the WebRequest?
View 4 RepliesI want to write in a csv file that is in an url, but it`s not work look my code:how do i do to write in a file?Dim request2 As Net.WebRequest = Net.WebRequest.Create("http://www.bbb.com/teste_download/dados.csv")
[Code]...
i use the WebRequest to download information but i can't receive properly from the site values like this: [code]
View 3 RepliesI've stress tested the code below and it seems to work fine - what are the dangers of not locking in the simple case where there is a single thread writing and a separate thread reading a simple variable? Have a class that has a public property...
[Code]...
I have a project with sql database and customer require to create this function .I mean when user use my program , they can delete, edit... but not still save yet. Suddenly power failure , and i want to recovery database when user turn on program again.
View 4 RepliesI am currently using the follwoing in my install routine, the idea is to check if the db exists. if the db does exist then leave the mdf name as is and attach it as a temp db then i can run a compare between the 2 db. however if the db does not exist i want to rename the mdf and attach it. however after renaming the mdf i cant attach the file.[code]
View 1 RepliesHow to handle the Network failure error message,and how to simulate it?
View 3 RepliesI have an email function that needs to embed images into the email. I get the mailinto my pickup but the mail still asks me to "Show Images/Download Images". Some howthe images are not being properly embedded.I'm not sure what needs to be changed the examples I find on a lot of sites is very basic and vague.Additional info for clarity: This function will either download the images via url or embed them. This is determinedvia an external xml parameter. The physical path for the images, which replaces the URLs, is also in the xml.
[Code]...
I am trying to send email messages from a Windows based Visual Basic application. I am using Visual Studio 2008 and .NET 3.5. The IP address in the config file is correct. But this gives an error message: Failure sending mail.
Code:
Dim Mail As MailMessage
Dim MailClient As SmtpClient
MailBody = "Test email"
[Code]......
