I 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")
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I have about 50 web requests that are saved on .txt files on my desktop. Is it possible to open and run each of those web request from a folder after my program has been compiled or do they have to be compiled before hand?
View 1 RepliesI am interested in uploading an image to a file field using httpwebrequest or similar however I am stuck on a few things. Would it be a matter of add the file field and the image I would like to upload as the value? I'm not looking for code, I would like to learn how this can be accomplished.
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I'd like to use the webrequest webresponse method to test for the existence of a file.If the first file is there, then I want to test for the existance of the same filename with -1.htm appended to it. If that filename exists, then test for filname-2.htm This continues until the filename being tested comes back 404 error. At which point, the program does NOT blow up, but the do until loop stops and the code continues. I have to search for a link on each one of the pages found once I have determined how many pages there are.How do I test for a file and not have it blow up? It has to loop and it goes through at least once. this is code I wrote. Right now the page just keeps going and going. IE's little logo on the page tab keep going around in a circle like it's in an endless loop.
Dim fr As System.Net.HttpWebRequest
Dim A As Integer = 1
Dim Count As Integer = 0
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I would like to use WebRequest to display information on a file in a remote directory, and then if it satisfies the requirements, I would like to download the file using WebClient.DownloadFile. Can someone give me a quick example of how I would implement this routine?
View 2 RepliesI have a trouble making this code work. When executed, it just creates a correct (with the correct name) file with the extension .txt but the the actual text inside .
Imports System.IO
Public Class Form1
Public mytext As String
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The strange thing is that while debugging, h, t string variables have the correct values, but somehow mystream.write(t) doesnt work (it doesent write anything to my h.txt text file...
Im 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
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Reading a .txt file in VB.net. My file path is C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt.
This is my line of Dim LoanOptionsFile As String = "C:UsersMyLilMulePepeDocumentsVisual Studio 2008Projectscurtain_calls.txt"
I can read the file when I run the program, but how do I write the file path so that someone else can download my program and file and read the file on their system?
I want to write a program to write in an xml file in this format:
<?xml version="1.0" encoding="utf-8" ?>
- <Orders>
<Item id="1" SKU="998123" Description="Super Widget" Quantity="100" />
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Dim pReq2 As WebRequest = WebRequest.Create("http://www.mysite.com/post.php?w=" & "TEST") pReq2.GetResponse()
View 5 RepliesI'm trying to write a sub that will write to a file. here is what i have:
Public Sub LogMe(ByVal MyType As String, ByVal MyMessage As String)
Dim LogStream As FileStream 'should be at a level with enough scope for your logging
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The problem is that this will just overwrite what is already there. I would like to have it append the EHomeLog.log every time it is called.
I 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]
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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.
What i am trying to do is open a save file dialog and write to a .txt firl the contents of my listview. so far:
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i have this, but i'm not to sure how to write to the .txt file i know i need to use a for each to loop the contents of the list view
I can not fiend any write functions to a text file or to a other file in Windows Direction
I want a simple write function for a button when click button it will write some lines to a file
I'm looking for a code snippet that will add graphics (lines, circles, etc.) to an existing pdf file & write it out as a new file.
View 6 RepliesI am using Visual Studio 2008 on Windows XP SP3. User has Windows 7 Pro (32 bit). The IO code below works for me. The read code works for user, but the write code only works for new files. If the user tries to overwrite a current data file, then no data is written to disk. I have done all the usual IO checking (valid file name, etc.) and have excluded it from my same code. In my app, FileSave and FileSaveAs both call WriteDataFile(FullFileName). Any reasons why FIleSave would work on Windows XP, but not on Windows 7 Pro (32 bit)?
Code:
Public Function ReadDataFile(ByVal FullFileName As String) As Integer
' reads a Data file from disk
'
' Format is a text file, with [TAB] seperators and [CR][LF] as line terminators
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I have a text file and I want to take the data from the text file and write each line into the excel file (into the same column). How do I accomplish this? I know how to read data from a text file, but I don't know how to insert the data to a excel file..
View 5 RepliesProgram to convert binary pdf file to tiff file in VB.NET..?? We can use third party tools also..???
View 1 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
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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:
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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())
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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.
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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 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 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 use the WebRequest to download information but i can't receive properly from the site values like this: [code]
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