I am using Vb.NET2008 to develop Window Application. When the user enter the File Name on the textbox, I need to check the file name to ensure that it has the File Extension. (Eg. Sales.XLS) I have not done the coding before and stuggling with it.
View 2 Replies
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.
How to get the file Extension name but without the "."?
io.path.getextension returns with the "."
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 .
I found out how to create file extensions on my PC and I want to open my program with the file extension, but how would I be able to load the text in the file extension into a textbox on my form if that's what the extension is for? And another question, how could I make a file extension that would act like a folder? Like store images and sound files and things like that.
View 9 RepliesI have this code for the Drag&Drop feature of listbox1:[code]In the "Private Sub ListBox1_DragDrop" I want to add the fileextension check to see it the file will or not be added to the list. How do I do it?
View 2 RepliesI have this code for the Drag&Drop feature of listbox1:
vb
Private Sub ListBox1_DragDrop(ByVal sender As Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles ListBox1.DragDrop
[code].....
I have found that to get part of my program to do what i need it to do without causing proplems is to remove the file extention, do what needs to be done with the files and then put the file extention back.
[Code]...
I wish I had never let go of my old pearl days, but those days are behind us Now, for the life of me, I can't remember how to write the regex I need I keep getting "TOO MUCH" validation!
the expression i have so far is: "(.*?).(jpg|jpeg|gif|doc|pdf)$"
but i know tis a little off for what I need What i need is to validate that a string passing through always = "*.extension"For instance, somehow, some strange way, user passes string as "bob.pdf"I want to convert the "bob.pdf" to "*.pdf"Or, say they just pass "jpg", then it needs to become "*.jpg"
Of course there is a billion other ways to do this, but none I can think of that would be less proc intensive than using regex I just can't remember the danged line I NEED!the ultimate goal in end of course is to set up:
[Code]...
I am having problems downloading files possibly due to the file extensions not matching the actual file. What is happening is the File.Exists check is returning false for these even though the named file does exist. Is anybody aware of anything in IIS or even IE which would cause this? I have seen this with .txt, .exe. and .avi files. The .avi works of as long as the file really is an avi and not renamed from something else.
View 2 Repliesi just made a small notepad type program. The function for opening and saving are working perfectly but i want it so that i could save the ".txt" as my own filetype lets say ".tox" or something.
View 1 RepliesI don't really know how to use compression in VB.net, so I was wondering if someone could explain it to me. I'm also wondering if it is possible to create a compressed file with your own extension.
View 13 RepliesHow would i go about checking a file extention to see if it is either
'.exe' or '.ex_'
What i need to be able to do is that if the extention of the file is '.ex_' then that file is copied to another folder, or if the file extention is '.exe' then it is passed onto another routine that will compress is.
Baring in mind that there could be a number of files in that folder.
I already have a routine that will compress the files, just need the above.
I am looking for an advise on how to find out the extension of the file only knowing the name and the location of it. I tried getextension method and some other but they don't seem to do anything to me.
E.G.:
Dim FileFullPath As String = "\SERVERPublicCRM_LibraryOrderMGMLetters" & datagridLetters.CurrentRow.Cells.Item(0).Value.ToString() & ".pdf"
[code].....
If i have an extension ... say...
vb
<System.Runtime.CompilerServices.Extension()> _
Public Sub Invert(ByVal b As Bitmap)
is there any way of hiding this from inteli-sense if it is not used as an extension?so that pressing ctl+space only triggers it if you go "bitmap.Inve.." rather than prompting on "Inve..."?
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?
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.
I'm trying to figure out a way to validate the user data entered:
[Code]...
This is in MVC3, VB.net. I'm looking for an easy way to validate a users input data into the editorfor field.
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
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]....
Why would I use an extension method instead of just creating non-extension sub or function?
For ex, I could have an extension function called IsNullOrEmptyOrAllSpaces on String, which does a check as its name implies. Or I can write a stand alone function that does the same thing. Other than having the extension show up in Intellisense, is there any advantage? Is a call to the extension quicker/more efficient than a call to a regular function?
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
Using the below code I want to set the '*' to any file. This folder (C:ewtemp) will only have one TIF file in it at a time so I want it to use that file as TextBox1, but that filename is dynamic, but always with extension .TIF.
TextBox1 = Convert.ToBase64String(StreamFile("C:
ewtemp" * ".TIF"))
Know how to do that?
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.
View 1 Repliesi 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.
View 1 RepliesI have an xml file that I download from a secure site every 5 minutes, I have the application set to download at 3 minutes after the hour so it runs at 3, 8, 13, and so on. The file is supposed to be there within a minute after the 5 minute increment has occured however this is not always the case, so I changed the download time from 2 minutes after the hour to 3 minutes. However I am still running into issues with it not being there even then. What I want to do is validate the downloaded xml file to ensure that the data is there and if it is not wait 10 seconds and rerun the download again.
if the file is valid it will call the SQL import Sub (),if not it needs to delete the existing file and rerun the download sub again.The problem I am having is that all the examples that I have seen when I google are for validating the xml file prior to upload or upon the xml files creation.
How can i add the some text after extention of the file without change file format in vb.net
ex : Welcome.jpeg (Unsigned)
I need to write a program to change the extension of all the files in a folder from a certain extension to another.[code]...
View 10 Repliesi'm using vb 2008 express edition and i'm trying to create a little software and i need to know how to change an extension of a file :like from myfile.rar to myfile.flv only to change the extension,not convert it or anything. and also can you tell me how to terminate a process like: microsoft paint or firefox?
View 8 RepliesI'm writing an import application that import .csv files into my SQL Server 2005 database.When the import is complete I need to change that files extension from .csv to .imp with the same path. I've tried using the following:
FileSystem.Rename(fullpathofoldfile, fullpathofnewfile)
Microsoft.VisualBasic.Rename(foldfile, fullpathofnewfile)
My.Computer.FileSystem.RenameFile(foldfile, fullpat
[code].....
