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.
View 5 RepliesI managed to create an application that is listed in the 'open with' list only in debug version. Means, when I right click on a file extension and select "open with..." I get the 'choose program' dialog and can browse for my app, nothing impressive. The weird part is, that when I enter the path to the debug version of my program is works, and when doing the same to the release version my app is not even listed, it is simply not shown...
Does anybody know what it needs to make a simple VB.net app be listed here, any fancy debug/release setting?
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].....
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?
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.
View 4 RepliesI 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]...
.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]...
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?
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.
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()
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.
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.
View 13 RepliesI 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
View 2 RepliesI 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
How can I stop the ProjectFile.xml file appearing every time I build my project file in the release folder?
View 3 RepliesI am writing an application for managing mp3 files. I use AXWindowsMediaPlayer1 for playing files and UltraID3 for reading and writing ID3 tags. Every time the user selects to switch to next song, the ID3 tags of the current file need to be updated. My problem is with Media Player taking a long time to release a file for access after doing a "close". Currently I need to add a 6 seconds delay between the "Close" method of the media player and the ID3 tag "Write", otherwise I get the error saying that the file is currently in use. Anything less than 6 seconds does not work...
I attached a short version of my application which focuses on the issue.
if you are debugging or releasing a projet , vs writes exe or bin files to the bin and obj folder in a release and debug version, are ther differences bewteen these files with the same name in 4 folders ?, eg myproject.exe
View 3 RepliesWhy would a .sln solution file open and appear empty in Microsoft Visual Basic 2010 Express - i.e. no windows showing projects and code files etc.When I inspect the file in a text editor, it contains references to vbproj files (which are present) which indicate that it should not appear as empty.No error messages are reported when the file is opened.
View 2 RepliesI would like to open the excel file after create the excel file. The creating file function is done, but the system unable to open the excel file. My coding as below:
Dim xlApp As Excel.Application
Dim xlWorkBook As Excel.Workbook
Dim misValue As Object = System.Reflection.Missing.Value
[code]....
how to use open file dialogs to open a file to a text box?
View 6 RepliesI've noticed that when you click on a web page in Windows Explorer, or open a file in general, and the default application to open it is internet explorer, ie opens and opens the file. However, when I tried this on my Web Browser it opened, but ignored the file and went on its usual routine. How can I get my Web Browser to open and open the file that was clicked on in explorer?
View 1 RepliesI saved a file with the extension .doc. I use the RichText to write and save the text. I did not set any encoding type when I saved it. When I tried to open the file in the Richtextbox again, I got all the formatting characters in the RTF file. How do I correct this? How do I open and re-open a .doc file in the Rich Text box control without the formatting showing up in the box with the document contents?
View 4 Repliesim having a slight problem with my open file dialogue box, i need to be able to open the dialgue box, and click the file and open in my pdf reader, or at least load it to my other form ive created. what ive go so far:
[Code]....
I have an app that loads a jpg into a picyure box, then updates exif data in exifworks classThe problem is that when I save the image(from image used for picture box) or class (to save exif data) then try to delete, sometimes I get success, others it won't allow delet I have gone to the trouble of using gc.collect, do events, put the delete in a timer & wait for the delete before continuing & still get the problem
View 7 RepliesI like to open a file. The open option should be shown in a separate window. My code works fine but the open window is not displaying to open a file. Here is the code:
private void OpenMyFile()
{
string path = GetPath() + ViewState["fileopen"];
[Code]....
I'm trying to create a program where I open a file using a open file dialog and take the information from a text file and output them into various listboxes and textboxes
The first problem I had encountered was at :
With CurrentCustomer
.EmployeeID = ToInt32(Fields(0))
.Name = Fields(1)
[Code].....
Using VB to open a .csv file with "excel.workbooks.open", editing it, then saving as .csv.
Even though it is saved as .csv, it is still identified as .xls.
Is there an alternate way to open this .csv file so that when it is saved as .csv the excel application actually identifies it as a comma delimited, not a spreadsheet?
I am trying to use the open file dialog box in VB 2005 to open up an existing txt, or rtf file from a directory into a rich text box. I am able to get the Open file dialog to appear and the directories, but when I try to open the file it doesnt import it into the text box. Here is the code I am using
[Code]...
Years ago when coding with VB6 and earlier, I used a file open command to create, read, and write a file that made it easy to store useful information.I believe it was binary and you wrote/read the data to a specific line in the file. When you opened the file with something like notepad, it just showed random ascii chars. When I needed a line of data, I could specify what line to load it from.
View 2 RepliesI've gone through about 16 hours and two packs of cigarettes trying to figure this out. First a little background. I was using 6.0 up until 2004 when I went to prison. I'm out now, and trying to relearn the trade, using VS 2005. I'm currently porting some 6.0 code from another project, SpyCast Webcam Studio, into VB 8.0. It's disheartening, to say the least. None of the old built-in subs/functions work anymore, so I have to scour the forums to relearn each and every function.The section I'm doing now takes a snapshot from the webcam (Video API --> PictureBox --> Save as Jpeg), then upens the file to upload it to the server via HTTP POST. I've been using this code in SpyCast for years with no trouble, but I spent many hours trying to piece together the right code to open the binary file to read its contents. I pieced together two methods I found around the forums, one using FileStream() though the code I found wasn't for binary files, even though it said it was, so that code doesn't really work. Method two uses Microsoft.VisualBasic.FileOpen() and works better.
Here's the kicker. By the time I run through the rest of the rigamarole of uploading the file, by the time I read it on the webserver, it's *slightly* corrupted. It's a valid Jpeg, no errors, but the picture looks like when I use to watch the Playboy Channel when I was a kid scrambled with weird colors and whatnot. [code] Each "chunk" is basically one "line" of the file. It looks like a single LineInput() return is the text between two carriage returns. Am I correct? I tested this with a flat text file, and it looks true. However, That one input line returns the text or data with the carriage returns *stripped*! ***?!? =( Fine, I have no problem adding my own vbCrLf to each LineInput(), if I were opening text. but this's binary. A character could be Chr(10) or Chr(13), both of which are removed from the original file contents.So I could very well need to use something other than LineInput(), but I haven't found any other examples on the web using this method.