404 Not Found Error On WebClient.DownloadFile (PDFs)
May 30, 2012
I'm automating downloads. I was getting this error quite a bit using Webbrowser to navigate to a PDF (various PDFs at various websites). In other words the PDF was already on display in the browser when I called WebClient.DownloadToFile. I got a LOT better results when I desisted from WebClient and switched to this API (just pass in the two strings along with zeroes for the other parameters).
[Code]...
And yet Webclient seems oriented for only two entries (username and password). How do you set up the credentials for three entries? I hate to abandon WebClient, but at this point I just don't know how to make it work.
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Dec 21, 2011
I have one problem with WebClient.DownloadFile
On asp.net server I have page with this code:
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs) Handles Me.Load
If Not String.IsNullOrEmpty(Me.Request.QueryString("Tool")) Then
[code].....
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May 23, 2012
I am trying to write a program to download an image at certain time intervals from a website based on a start time, end time and the time interval. I am trying to use 3 timers to accomplish this. I want to be able to kick the program off and leave it running until I stop it. My code seems to work fine if I set the time interval for something like 2 minutes, etc. and sit and watch it, but if I set it for an hour and leave it alone, it gives me almost sporadic results.
I set it to start at 10 pm last night and end at 5 am this morning with an interval of 1 hour. It downloaded an image at 10 pm, 11 pm, 12 am, 1 am, 2 am, and 3 am and then there were no images for 4 and 5 am. I have tried this multiple times with different time spans, and seem to get sporadic results. Any insight would be greatly appreciated. Here is my current code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If TextBox1.Text.Length = 0 Or cmbStartTime.Text.Length = 0 Or cmbEndTime.Text.Length = 0 Or TextBox2.Text.Length = 0 Then
MsgBox("You must select an image destination, start time and time increment.")
Else
[code]....
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Jun 29, 2010
I'm downloading a file from my website using WebClient.DownloadFile(),I'm wanting to do it asynchronously, so my UI stays responsive, that would require me creating an array of web clients, is that bad practice? Or is it acceptable?I have looked into FileWebRequest, but thought WebClient looked easier to implement.
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Jun 10, 2011
How to download multiple files with a wildcard pattern using webclient DownloadFile? Like project* from [URL]..
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Mar 4, 2012
I am using WebClient.DownloadString method in vb.netto convert asp.net page to string after that I send this string by email. by I got this error from the server The remote server returned an error: (500) Internal Server Error. Unfortunately, no more details about the error. what is the possible problem ? edit: error in the following line of code :
[Code]...
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Nov 15, 2011
I have the following code that I'm trying to retrieve the HTML document. Not sure why it wouldn't work. Here's what I captured from Live HTTP Headers:
[Code]...
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Mar 4, 2012
I am using WebClient.DownloadString method in vb.netto convert asp.net page to string after that I send this string by email. by I got this error from the server
The remote server returned an error: (500) Internal Server Error.
Unfortunately, no more details about the error. what is the possible problem ?
error in the following line of code :
Dim str As String = client.DownloadString(Request.Url.GetLeftPart(UriPartial.Authority) + "/GFOPortalA/isd/ViewForm.aspx?ISD_FRM_NO=" + Session("ISD_ReqId"))
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Mar 8, 2010
I've been testing using WebClient.DownloadString and sometimes I encounter an error: "The remote server returned an error: (403) Forbidden". It is based upon which url I use. For instance, this works:
Dim wc As New Net.WebClientDim strResult As String = String.Empty
Try
strResult = wc.DownloadString("http:/ Obama pages always fails.
[code].....
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Jan 5, 2010
I am facing another error "An error occurred trying to load the page. Member not found. (Exception from HRESULT: 0x80020003 (DISP_E_MEMBERNOTFOUND) )" performing the following scenario:- Opened a sample VS 2010 WPF project that I receiveved from a co-worker (Project compiles, and run on his machine)I tried to open project properties (Project --> Properties)The project properties panel/window didn't open, all it had was an error symbol (red/white X) and the error message above(HRESULT: 0x80020003).I am unable to view niether the designer window nor the code window (no messages are reported) but the pane where the code/design shoud display is empty, all you can see is the background color.
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Jan 19, 2010
Quote:
System.Exception: Transaction (Process ID xx) was deadlocked on lock resources with another process and has been chosen as the deadlock victim.
I suspect this
Dim webc As New WebClient
webc.DownloadFile(remotexml, targetxml)
webc.Dispose()
Then i am using the targetxml right after that:
Dim xmldoc As New XmlDocument
xmldoc.Load(targetxml)
etc.
It seems that xml file is locked by the first process (WebClient).
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May 1, 2010
I'm trying to download a simple text file from a web server. It's easily accessible from the web browser and I can download it from the web browser. However, whenever I use a WebClient to download the file, I get a 403 Access Forbidden Error! I'm not sure what I'm supposed to do. I haven't come across this kind of error in programming before and I'm not sure what I'm supposed to do to get around it.
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Nov 12, 2011
My program takes user input, replaces all spaces with "+", then inserts it into a search url for a specified web host. For example, the user enters:"How long is a foot?"
The generated URL (in this case I'm using dogpile.com) is:
"http://www.dogpile.com/info.dogpl/search/web?&q=How+long+is+a+foot"
This method has worked before for me, but now I just get an Internal Server Error every time the code is executed.
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Oct 7, 2011
I've managed to narrow down my issue to a simple annoyance. I had a Webbrowser control mostly coded to navigate around an Oracle CRM On Demand site to generate metric reports, but then realized when I tried to build in the auto-download part, that the Webbrowser object wasn't going to give me the behind-the-scenes control I wanted. Searching online, it seems the Webclient control might be a better route. However I'm stuck trying to get by the login page so I can use the Download-File method to get my generated xls report. [Code] But every reply from the server has "Sign In Error: Both a user sign in ID and a password must be given." which tells me the form/post data isn't getting where it needs to go (It thinks the form is blank at [Code].
The above username and password are bogus of course, but once I can get a different reply then 'the fields are blank' I can worry about correct logon information. I'm just not sure what I'm not doing correctly or if I need to include something else. Since it's a publicly accessible site and I'm stuck getting something in the form to be 'seen', it should be easy for others to try and test.
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Sep 21, 2011
I am getting an error with this Dim Web As New WebClient Web.Proxy = "69.196.16.237:62159" It says runtime errors may occur when converting string to System.Net.IWebProxy What does that mean?
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Apr 14, 2010
I've got relatively little experience with VB but I've been asked by my employer to try to write a program to automate a billing process. We print PDFs for some of our clients, and we do two copies. One copy goes to the account holder, and one goes to the company that funds the account. So we have a directory structure that looks something like this:
Copies that went to the account holders:
FolderA1234.pdf
FolderB987.pdf
FolderB6767.pdf
[Code]...
As you can see, the file names are the same. But items in FolderA are billed differently than items in FolderB. So the ideal program would be able to go through FolderA and FolderB, collect the filenames, and then go through SubfolderA and SubSubFolderA and report back that, "1 file matched a filename in FolderA. 2 files matched filenames in FolderB". I have no idea where I would beging to write such a program but is this something that is plausible?
My manager says he can probably do something like this in an hour manually so if it would take longer than that to code it's probably not worth it. I'd really like to be able to show some skill and do this, though (I've only been here a few months and this would be a good opportunity to provide some added value).
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Nov 21, 2011
I am trying to add a webbrowser control to my app and view PDFs. I am sort of get it to work..where I can choose oen adn it opens...BUT when I go to open another it errors out..I think I sort of have the WebBrowser working...ALTHOUGH i cannot seem to change the image...I can only load it once...ERROR: Trying to revoke a drop target that has not been registererd (exception from HRRESULT:0x80004100 After the app opens I can click either or and it will either open the PDF or the web page..BUT I CANNOT select again...I get the error above...I have tried to set the webbrowser to NOTHING but that does not seem to be working.
webbrowserPDF.Source = Nothing
If Test = "fire_district.pdf" Then
webbrowserPDF.Source = Nothing
[code]....
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Jun 14, 2011
I've got a project where I'm going to have to compare some PDFs. I've checked out a few SDKs, but I was wondering if anyone else has had to tackle this and may have some suggestions?
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Aug 16, 2011
I have a PDF billing template that I need to put in the various information for customers and then send them the PDF's. I was looking into coding this with VB and saw iTextSharp mentioned a few times.
When I googled it I only found something on SourceForge and it was written in C#, where do you go for something in VB.net?
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May 2, 2010
When I install .NET 4.0 and try to run my .NET 2.0 designed application I get a ".Net Framework not found" error.
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May 6, 2010
Iam Using This Code to return app path it works good on my pc but on any other system it give the right path but an error also came
The specified file not found
Public Function App_Path() As String
Return System.AppDomain.CurrentDomain.BaseDirectory()
End Function
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Feb 3, 2010
I had the following piece of code working for the last few weeks and earlier today it seems stopped working.I have the code in a try/catchh block and in that try I create a file, "Build.bat" with code in it that will get it to do some oracle/sql wizardry
If File.Exists(Application.StartupPath & "Build.bat") Then
Shell(Application.StartupPath & "Build.bat", AppWinStyle.NormalNoFocus, True)
End If
After stepping through my code I noticed that the catch is executed at the shell line, so I put it in an if statement to see if the file exists and it always comes up as true, but on the next line I still get a File not Found error.
Try
Dim BatFile As New StreamWriter(Application.StartupPath & "Build.bat")
Dim SQLPLUS As String[co
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Aug 10, 2009
I have this weird(!) issue that I cannot pass a path as a variable. I really tried everything but I always get the "Cannot find path" error when executing. It has to do with the quotes, I guess.When I print out the path it is perfect like: "C:Documents and SettingsAdministratorMijn afbeeldingen" (with quotes)Maybe a basic problem but I'm stuck-stuck!
Option Explicit
Dim oFSO, sFile, oFile, sText, file, newText
Dim sFileArr
Set oFSO = CreateObject("Scripting.FileSystemObject")
[code]....
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Apr 21, 2010
Using a basic script to copy 4 folders.
fso.copyfolder "F:OfficeTreeStuff", newfolder &"", True
3 folders copy fine. 1 does not: path not found error is displayed.
How can I have the particular file/path displayed that is not found?
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Aug 21, 2009
I getting an error which is:
Error 1 Task failed because "AL.exe" was not found, or the correct Microsoft Windows SDK is not installed. The task is looking for "AL.exe" in the "bin" subdirectory beneath the location specified in the InstallationFolder value of the registry key HKEY_LOCAL_MACHINESOFTWAREMicrosoftMicrosoft SDKsWindowsv6.0A. You may be able to solve the problem by doing one of the following:
1) Install the Microsoft Windows SDK for Windows Server 2008 and .NET Framework 3.5.
2) Install Visual Studio 2008.
3) Manually set the above registry key to the correct location.
4) Pass the correct location into the "ToolPath" parameter of the task. OutlookBar v2 2005.
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Feb 23, 2009
I need to print multiple existing files, PDFs. I have the following
[Code]....
Is there another 'better' way of doing this? Sometimes it just doesn't print the PDF, I guess because it's taking longer than the WaitForExit time. And so closes the process.
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Sep 16, 2010
I'm trying to use the Global.asax file in the root application of the website to catch requests for pdf files in the root that don't exist any more. I've configured iis to send pdf requests to asp.net. The whole thing works perfectly on development. It also works on the live system with missing .aspx pages, but not .pdf. Instead an "Error Code 64: Host not available". I'm using the Global.asax file to avoid the web.config and child applications (1.1 & 2.0) inheriting settings.[code]...
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Jun 22, 2010
I can insert into my table by the bindingnavigator and dragging textboxes straight from the DataSet entering them and saving. But I want to insert into the DataBase via code and in order to do this I have used the below code to connect. I use this code to test the connection and cannot get it to connect. Just get the error to say the DB cannot be found.No username or password on the DB
Private Sub btnDB_Click_1(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnDB.Click
Dim connString As String = "Data Source=C:Visual Studio 2008ProjectsCollegeBetfairBetfairDB.sdf"
Dim myDB As New SqlConnection(connString)
Try
[code]....
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Apr 9, 2008
I am trying to publish my app but when i do that i get an error:Error2An error occurred while signing: SignTool.exe not found.I already search the net, where they said that the SDK was not installed with vb2008. So i installed that one.
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Jun 10, 2010
I am using process.start to start Excel.The filename argument has blank spaces in the path and the argument is truncated at the first space.The error that is returned says the file cannot be found.
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