Release A File That Is Being Downloading By A WebCliet?
Jul 31, 2011
Have you seen Pulse project on CodePlex?
It's a good project but it has many bugs (even have a bug that don't work!).I want to improve it.
There is a problem in the program.This program downloads images from the web.I want the unfinished pictures deleted when program closed.But I get the error that the file is being editing by another program.
How can I release that file?
I try:
Client.Dispose()
Client.CancelAsync()
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Sep 17, 2009
How can i make a button that download a file using http show a progress bar about the downloading file state?
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Nov 8, 2010
I am trying to download a file off my web server (easy) but the file its downloading is the updated version of the file running. I finally was able to program my automatic update software the program simply downloads a .txt file from my web server, reads it, and if the the version = (new version here) then download. If not, then go to another form. The problem I am getting though, is when the version is outdated, the file will go to download the new .exe and it gets and error saying "File already exists"
[Code]...
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Mar 27, 2012
I'm trying to save rtf files in this manner to bin (rtb9 is the rtf control and there is button when clicked opens it):
Private Sub tempSave()
f My.Settings.rtbx = "rtb01" Then
[code].....
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Mar 31, 2009
I made a .exe file of my project (in vb2008 express ed.) and it was all working and then I copied the release file out of my project and an error came up (something about UNC share) and i realized the path was wrong, so when I tried to delete the Release file (currently on my desktop) a pop up message says you need to be administrator to delete this file so I press continue (as I am the administrator) and another message comes up saying "You need permission to do this" "Try Again?", when I click "Try Again" the same message comes up. I know this isn't directly involved with VB, which leads me to my second issue:
How can I create a file that is external from VB yet it still works? In my code there is a path that connects it to SQL is it perhaps something to do with that?
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Dec 1, 2009
I am writing my first vb.net program that displays a .pdf file in a webbrowser control. I have setup a routine that moves the file to a different folder. The problem is I get the following error: "The process cannot access the file because it is being used by another process." Is there a way to release the file from the webbrowser so that I can move the file.
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Apr 16, 2009
I'm opening a file called tempImage.jpg and showing it on a form in a PictureBox. I then click a button called Clear and the file is removed from the PictureBox using PictureBox2.Image = Nothing, however I'm unable to delete the file as it is locked open. How can I release it so I can delete it? I'm using VB.NET and a forms app.
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Mar 9, 2009
I have a system that scans in images to multi page tiff files and allows the user to preview before finalising. When the user previews,they click on the page number which should then use the TiffBitmapDecoder to read that particular frame in from the Tiff file and display the BitmapSource in an Image control...this works just fine. The problem comes in when they scan another page which is then inserted into the tiff file. The tiff file is returning that it cannot be accessed as another process is using it. How do I get the TiffBitmapDecoder to release the Tiff file?
[code]...
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Nov 28, 2011
I am trying to download a file from an FTP but i keep getting this error:
"Invalid URI: The format of the URI could not be determined."
The code i'm using is:
Dim rfn As String = "/guildford/jobs.jd"
Dim lfn As String = "C:web"
Dim ftp As FtpWebRequest = CType(FtpWebRequest.Create(RFN), FtpWebRequest)
Console.WriteLine("Downloading: " & RFN)
[Code]...
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Sep 20, 2009
I've got a code in VB that will download a txt file from a website. The problem is I want this file to be downloaded into whatever folder that my program is in. for example, if my program was in C:
andom_folder then I would want this txt file downloaded to C:
andom_folder
Here is some of my
My.Computer.Network.DownloadFile _
("http://www.mywebsite.com/test.txt", _
"define where file should go here")
But in the spot to put where to place the file, I can't just put C:andom_folder because individual users may have this program installed in other parts of there computer.
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Aug 22, 2006
.NET 1.1VB 2003i have create a program where the program will dynamically create a mdb file, create a table, then populate the table via ADOX.dll using com interop.After populating the table i would like to FTP the said file to some FTP folder, to my dismay everytime i try to upload the mdb file i always get 0 kb, then i found out that the mdb file is "FILE-LOCKED" by some unknown process, but i dont know why because i have manually released all the resources that has been used, here is my code
[Code]...
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Jul 21, 2010
I've got ASP.NET intranet application written in VB. It gets a file from the user, and then depending on a few different cases it may create a few copies of the file as well as move the original.
Unfortunately I've come across a case where I get this error:
Exception Details: System.IO.IOException: The process cannot access the file
'\somedirD09_03_5_180_0.000-6.788.png' because it is being used by another process.
Which is thrown by My.Computer.FileSystem.CopyFile. And that's fine that it's being used by another process - it may still be saving/downloading from the user or trying to copy while another thread(?) is copying, I don't really care about that, what I want to know:
Is there any way that I can tell VB to wait to copy (also move) the file until the file is no longer in use?
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Jul 23, 2011
How can I combine all of the output Released files into just a single .exe file? Like for example I have these file extensions: .exe, .pdb, .vshost, vshost.exe, vshost.exe.manifest, and then 2 xml files that have to do with my program.
So once again I am trying to get all of these files into possibly one file. Do you know how when you go into your Windows Program Files folder, there are none of these files. I am basically trying to do the same thing.
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Jul 20, 2009
Been a while since my last posts, so i'm kinda back again ^^ Me & my friends are gonne have our annual LAN party again next weekend, and I'm usually the one in charge of taking care of things, setting up the network etc etc. One thing i've noticed over the past 4 years, is that it usually takes us a day to get everyone set up correctly, all games up to date etc etc.
[Code]....
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Jan 29, 2011
i'm new to networking in VB.net and i cant figure out how to download a file from a website. The problem i'm running into is that
My.Computer.Network.DownloadFile
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Mar 23, 2011
I have this code to download a file from a ftp server. It works fine, well I guess semi fine ..lol.. files larger than 10 mb are the problem. Files starts downloading and when it reaches 85 % i get an error Arithmetic operation resulted
[Code]...
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May 9, 2010
Is there any way in Visual Basic 2010 that I can download a file to a specific location, with a progress bar showing how much of the file has downloaded.
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Aug 15, 2011
I am trying to use WebClient to download a .zip file from my server. In debugging mode the code works perfectly, but when I deploy my software the file does not even begin to download.After my program checks to see if an update is available, it should download the .zip file from my web server via the following
[Code]...
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Jan 17, 2010
I'm trying to save this picture from a website automatically, but the problem is there is no file extension. I tried the following code, but it always gives me an error:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
My.Computer.Network.DownloadFile("http://www.hackthissite.org/missions/prog/2/PNG/", "C:PNG.bmp")
End Sub
Error: An exception occurred during a WebClient request.
P.S - I believe the reason it doesn't have an extension is because the picture changes each time the url is loaded (probably through a php code). I'm not too sure on the specifics, but the lack of an extension is what I am having problems with.
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Jul 30, 2009
VS 2008 SP1 I am using the web client to download a file. Which works ok.However, now I have to download many and the number of files to download will change everyday.I am not sure how I can get the web client to know which files have been downloaded or not? I was thinking of using a for loop to download each file. But I will never know how many there are to download?The web client could download the same file twice?
Private Sub btnStartDownload_Click(ByVal sender As Object, ByVal e As EventArgs)
Dim client As New WebClient()
AddHandler client.DownloadProgressChanged, AddressOf client_DownloadProgressChanged
AddHandler client.DownloadFileCompleted, AddressOf client_DownloadFileCompleted
[Code]...
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Jun 16, 2009
I am trying to download a zip file(which contains 4 text files) from a secure website and getting html page in return. If I do it manually I get the zip file. I am using visual basic express. I am very new to .net programing. why I am getting html page instead of the zip file. The manual process is to login, click ebill tab and select the month from list and click download button, which then open up the save dialog box with the zip file name.
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Dec 22, 2009
i am having a problem with this program below.it downloads a file and has a progress bar to tell how much of the
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Sep 25, 2009
This is my sample code run under thread to download file from ftp server. In that, if the user want to stop file download, i tried to abort the thread. If the control in the while loop, its hang up.
How to close the binaryreader and Stream, when reader in the middle of stream
Using response As FtpWebResponse = CType(ftp.GetResponse, FtpWebResponse)
Using input As Stream = response.GetResponseStream()
Using reader As New BinaryReader(input)
[Code]....
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Jun 1, 2012
In this link there is a text file [URL] . However, using this code, it downloads an empty file. Why ? [vs.net 2005]
Dim Url As String = "http://stooq.com/q/d/l/?s=gc.f&d1=20110602&d2=20120531&i=d" Dim myWebClient As New WebClient() myWebClient.DownloadFile(Url, "c:file.txt")
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Dec 21, 2011
I have a .Net 4 WinForms app that generates a DLL, calls CreateObject on the generated DLL then calls one of several methods that the DLL contains. The DLL is eventually used by a separate app. This WinForms app is just to generate and test the DLL hence why it can generate the DLL multiple times.The problem lies in the fact that calling CreateObject on the DLL locks the file to the process. The next time the DLL is generated it can't overwrite the previous DLL file on disk without closing the app completely and starting it again.
I've tried Marshal.ReleaseComObject, executing the CreateObject in a separate AppDomain, even setting the variable holding the COM object to a different COM object via CreateObject, manually calling GC.Collect() and a whole host of other things but none result in unlocking the file.The code flow is basically (simplified and generic names, etc.):
...
' Compile and generate DLL that is COM enabled and works fine
...
Dim foo As Object = CreateObject("Bar.Foo")
[code]....
is there a way to release a file lock on a COM DLL that has been instantiated via CreateObject without killing the process?
Note: this is a continuation of this original issue. I now have the DLL registering without locking the file but now the issue is with the CreateObject call not the DLL registration.
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Mar 20, 2009
I develop an application through two multi project solutions.There is one solution for the data layer stuff and another one for the front end stuff.All the dlls are referenced in a startup project and have copy local = true. So the build output from the GUI solution and the dlls referenced from the data layer solution should be copied to this startup project's bin folder. This seemed to work without issue for some time, but after changing source control, after a rebuild of the data layer solution, I clean the GUI solution and get the following output: [code] I have researched this problem and it seems microsoft are aware of a problem, logged under MSB3061... but no solutions have been posted by MS. Several users have suggested stopping the indexing service from indexing bin and obj folders (I've done this). I've also ensured that none of the bin/obj folders are under source control. I downloaded FileMon from sysinternals and it says that devenv (GUI) has the file locks.
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Jun 12, 2011
I have been dealing with this problem for awhile now, and ever since I tried publishing my application, I keep getting this error:Error1Could not find file 'Microsoft.Windows.Common-Controls, Version=6.0.0.0, Culture=*, PublicKeyToken=6595b64144ccf1df, ProcessorArchitecture=*, Type=win32'.ifxtweet2
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Feb 17, 2012
I have difficulty in removing the LDB generated by the "CREATE" method of ADOX in the following code segment.Aims: Create (on the fly) a new access database and then export data (says Arena modules) to that newly created database.
Expected: The newly created access database should be able to be used by some external operations, say Access.exe, after the end of the subroutine and without exiting the current VB program.
1) I tested that the "Arena code" do nothing about the create/release of the ldb file.
2) I tested the "Exclusive Mode" in connection string, but the access file is still locked by the vb program.
3) I tested under both inside the VB environment, and directly invoke the generated from Explorer, and same results.
4) Other database formats is not the options to me. (due to Arena export limit)
5) It is not a web app.
Code:
Sub Method1()
Dim logs As New System.Collections.Generic.List(Of String)
Dim arenaApp As Arena.Application = Nothing
Try
[code]....
Platform:
Windows 7 64bit, Office 2010 (32)
VB 2010 express
Lib: MS ADO Ext. 2.8 for DDL and Security
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Aug 4, 2009
How can I stop the ProjectFile.xml file appearing every time I build my project file in the release folder?
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Mar 26, 2012
I am creating Excel file download using NOPI libraries. I have lot of data to show in Excel file which taking long time and big file size. Is there anyway we can reduce Excel file size while downloading? Now file size is 32 MB wants to this size.
[Code]...
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