File Extension Of Opened File ?
Sep 23, 2010
I have a small requirement and that is as follows: I have opened a file using the "openFileDialog" provision and i have set the filer as (*.txt). Now when the openFileDialog is displayed, only the test files are visible, but the user can also select "All Files" and choose any other file type.Now what is require is that, if a file type other than .txt is selected by the user, i want to display an error message. So is there any provision by which i can get to know the file type that is selected by the user.
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Jan 4, 2011
I have File Like "Sample.bak" and when I compress it to be "Sample.zip" I lose the file extension inside the zip file I meann when I open the compressed file I find "Sample" without any extension.
I use this code :
Dim name As String = Path.GetFileName(filePath).Replace(".Bak", "")
Dim source() As Byte = System.IO.File.ReadAllBytes(filePath)
Dim compressed() As Byte = ConvertToByteArray(source)
System.IO.File.WriteAllBytes(destination & name & ".Bak" & ".zip", compressed)
Or using this code :
Public Sub cmdCompressFile(ByVal FileName As String)
'Stream object that reads file contents
Dim streamObj As Stream = New StreamReader(FileName).BaseStream
[CODE]...
I need to compress the file without loosing file extension inside compressed file.
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Oct 25, 2009
I want my program to be able to create a '.txt' file when it is run for the first time, with the date and time the program was accessed, and to be able to add new 'logs' of program history every time it is accessed. What i mean is that i want my program to be able to create a '.txt' file, and then fill in the dates and times when the program is opened.
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Jun 5, 2009
Is there a better way of finding the path of a file that was opened with the open file dialogue? This is what I did. It works, but it seems like there should be a way to get the path through one of the open dialogue options.
Code:
'm_PicSource = OpenFileDialog1.FileName
'm_PicSource is a global var
Dim strCnt As Integer = m_PicSource.Length - 1
[Code].....
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Oct 14, 2010
[URL] to create my sqlite db file. I created it as a sqlite db version 3 file. When I go to open the connection
[Code]...
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Sep 27, 2010
Do you have some source code how to open a file (file browser) with file extension specific using Visual basic.net.
Just need to get the path then control this using the vb.net binding
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Jan 10, 2010
So I open files and do whatever with them right. I've set the initial directory to equal the last directory, but whenever I open multiple files, it never sets the directories properly. It acts as though nothing was opened there, so it takes the previous directory as the last one. Thoughts on what's not working? Here's the code.
Code:
With FileOpenDialog1
.InitialDirectory = LastDirectory
If .ShowDialog = DialogResult.OK Then
[code]....
I have multiselect enabled earlier and everything else works but this. When you open a single file, the last directory works fine. It only happens with multiselect.On another note, does anyone know why it freezes when I try to do a lot of files and use another program? I opened 700+ files to see what would happen. When I switched to a IM convo, it froze. When I left it to run, it worked.
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Nov 21, 2011
I created the upload page using with FileUpload server control. And I used regular expression validator to validate file extension.
<asp:FileUpload ID="AttachmentUpload" CssClass="text" size="58" Width="376px" IE:Width="385px" runat="server"/>
<asp:RequiredFieldValidator SetFocusOnError="true"
ID="AttachmentUploadRequire"
runat="server"
[code]....
It is Ok for chrome and IE but not Ok for firefox.
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Sep 15, 2009
I need to be able to find files in a folder where the extension can be either caps or small letters. Here's my code:
Code:
Public Function GetIcon(ByVal name As String) As Icon
Dim execAssembly As Reflection.Assembly = Reflection.Assembly.GetExecutingAssembly
Dim stream As System.IO.Stream =
[Code]....
How can I modify that function to return the file regardless of whether the extension is in caps or small letters?
This is in VS2005 for a .NET 2.0 Compact Framework project
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Oct 20, 2010
Recursive File Copy based on file extension. I have a single root folder that contains numerous folders that contain a few files that I want to extract. For this example, lets state that I want to copy all �txt� extensions and put them into a repository folder.
Example:
\root
\root\Folder1\
\root\Folder1\abc.txt
[code]....
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Dec 16, 2009
I need to get the extension part of a file path for example,
c:me.jpg
i need to return the ".jpg" to a string. Im sure this is easy enough, im guessing i need to get all the text after the last .
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Nov 2, 2011
I want to create my own extension without changing my registry file. I have a VB.NET project and I firstly want to create my own extension like ".abc" afterwards if there is any file like xxxxxx.abc when a person try to open this file I want windows to startup my project and open that file.
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Sep 8, 2009
i want to create a new file extension like, .newprog file.and i want it to be able to get back by opendialogbox. i want it to store the control of my form that will be at different place on the form.
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Oct 27, 2010
I have a custom tool "NafestisGenerator" of which I need to apply to every ".ntf" file. The question is, how do I tell visual studio (using the Custom tool Generator sample from Microsoft) to use the "NafestisGenerator" custom tool on every ".ntf" file?
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Apr 12, 2011
How can I copy file but use the file extension only for reference e.g. -> .txt for text file ?
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Mar 18, 2009
what is the file extension of a resources file in .net?
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Feb 20, 2010
I can't connect to my database now, although yesterday it was perfectly fine. An error message comes up saying "...A database with the same name exists, or specified file cannot be opened, or it is located on UNC share" this has never happened before. Why can't I access my database?
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Apr 24, 2009
I have created a windows application which creates a database file and saves it to disk, it uses a custom file extension so that when the file is clicked it opens the application. In order for the application to use the data in the file it needs to rename the file so that it has a .mdb extension. My problem is that I cannot see how to get the name of the file which opens the application.
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May 26, 2010
I'm exporting my Dataset to an excel file, and I want to make sure I keep any file errors under control. One in particular that I'm concerned about is accessing a file that's already open. A general IOException occurs that says:
"The process cannot access the file 'C:Reports eport300.csv' because it is being used by another process."
Here is the line in which the error will occur:
Dim output As New IO.StreamWriter(path, False, UnicodeEncoding.Default)
I guess I could just throw a try catch around it, but what if an IOException happens that isnt related to this particular incident? Is there a way I can check to see if the file is already open before allowing this code to run? Especially when I'm using excel.
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Mar 15, 2012
I made a quick search program so when I browse for a text file, it adds that text file to a listbox1. And then when you search result will be placed in listbox2 Now I'm wondering how to force the program to automaticly load last opened text file on startup.I tried with this and then I stuck.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim reader As IO.StreamReader = _
New IO.StreamReader(winDir & "system.ini")
[code].....
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Feb 29, 2012
How can I upload an image 1.png into the program and then once the program is opened, that image gets saved here:LibrariesDocumentsand if there is already a file called 1.png in that directory.
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Feb 19, 2009
I have the following code to open an Intel format hex file. The file is like this
:020000040000FA
:1000000000000000000000000000000000000000F0
:1000100000000000000000000000000000000000E0
:1000200000000000000000000000000000000000D0
[code]....
After I started running my code, I was told "Error opening file". Can anybody tell me what's wrong? Also how to retrieve each byte on each line to array HexValue?
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May 4, 2011
I have a couple of files which I have to update periodically through a process written in VB.net . These files are on a server and part of a domain that many users can access. These files should never be written to as they are for reference only. I need to be able to overwrite some of them even if a user has them opened. Is it possible to do this? Presently the files permissions are not set as read-only but I can do this as long as the user under which the process runs will still have permission to overwrite them.
UPDATE: thx for your responses. The files are pdf and are opened by clicking on them from windows file explorer. This also happens when a user simply has the file selected in windows explorer.
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Nov 29, 2011
I tired this code to check if the Excel File is already open but didn't succeed
vb
Dim exl As New Excel.Application
If exl.Workbooks.Open("C: a1.xlsx") Then MsgBox("Yes")
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Mar 4, 2011
Can anyone point me in the right direction to where I can find information on how to make my own file type that can only be opened with my vb.net program that I'm am making? The file just needs to hold text.
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Nov 16, 2009
I have the following line of code used to input the name of a text file to be opened and during development this was working without a problem. However when I create an executable this is not working and I was hoping someone would be able to give me a tip on resolving this matter.
Dim fileName As String = Application.StartupPath & "" & TextBox1.Text
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May 15, 2010
I've created an application that saves files with an extension of "*.pbca". When i click the saved file in Windows Explorer, it opens my application, as it should, but i now need the code that finds the file path of this file once my application has loaded.[code]...
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Jan 17, 2010
I want to monitor for when a file is opened(movies that I open with a media player) and raise an event when that happens. I figure i've got 2 options: the first is monitoring the filesystem for a change in 'last accessed' property of the file- not good, since it doesn't change immediately. And second,monitor for when a process of the player is launched, and get the info from the titlebar. How can I do that ?
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Aug 30, 2009
How would I make it so that my programs Title is like"Text File Name"-"Program Name"Also, how would I make it so that text files can be opened with my program?I can open a text file within the program but I cant do
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Jun 25, 2009
I am using VB 08 running an openfiledialogue wanting to get the result of the GDS file (*.gds) to be the default extension at the drop down menu instead of All file when the openfiledialogue box opens.
I coded it with:
OpenFileDialogue.Filter = "GDS File(*.gds)|*.gds|All files|*.*"
but the results i get in the open file dialogue box remains as all files being in the drop down menu as the default file extension. How to i set it to ".gds" format?
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