Trying To Use GetFiles To Search For Files And List Them But Keep Getting Errors
Mar 2, 2009
I've taken a few vb courses a few years ago but I've been wanting to write a script that will search my harddrive(C:) for any ".dda" extention and list the location to a listbox. I eventually want the script to also copy the file to the location of the build but I can't seem to get the first part working at all. [code]A first chance exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll.
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Feb 15, 2011
This has to be simple, but can't find the answer.I want to display a list of all files from a folder in a listbox. Easy..., but I want to display only the filenames without their paths.
For Each foundFile As String In My.Computer.FileSystem.GetFiles("C:My Folder")
ListBox1.Items.Add(foundFile)
Next
This gives me list looking like that:
C:My Folderfile1.txt
C:My Folderfile2.txt
[Code]...
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Jan 14, 2005
When you do GetFiles() you can specify a search pattern such as *.txt. How can I specify multiple patterns. For example, in windows search you do *.jpg;*.bmp;*.gif. I tried that but no luck and the msdn not work. Is this possible?
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Mar 2, 2010
How can I search for files and list them in a listbox? And how can I search for only ex. jpg or png's?
I've tried many things in the past, but with no succses.
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Sep 15, 2011
I want Search In a Directory for multiple pattern ( For Example : *.jpg,*.png,Davood,*.dj ) that Result shoud return all files and folders that matched with my pattern,
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Dec 10, 2011
I am currently trying to develop an application which will backup large folders to a specified destination. To find all the files in the specified 'backup' directory I am using the following code.
[Code]...
I have tried putting my GetFilesRecursive function into a separate background worker to run first so I can update the GUI however I am struggling on how to return the List of found files back to my application (I get cross-threading exception) and how to update the progress bar to show the progress of the GetFileRecursive function so the user knows it is processing the list of files and has not crashed/frozen.
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Apr 20, 2011
I am using Directory.Getfiles(DirPath,"Pattern")to locate specific files in a folder. This works fine unless no files are found. How can I get my code to determine whether no files have been found?
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Apr 11, 2011
one of the BIG hurdles in my simple project, making a search engine. I don't know how at all. The search engine need only to search in one Directory with its sub directories and txt files for criteria, and display the results, with option open from the results. any basic code or example maybe?
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May 24, 2012
I am coding in vb.net. I migrate a project from vb6 to vb.net.In my migrated project I'm pretty sure there are close to 200 errors.but in ErrorList it show only 102 error. So, my question is how can i get all errors at a time in Error List.
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Nov 2, 2009
When I was learning QBasic I found a list of most common errors and it told me whether my errors were syntax errors or logic errors. Where I can find a similar list for VB 2008 Express Edition?
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Apr 27, 2012
I'm using MS Visual Basic 2010 Express. The project requires me to refer to a class in another file, which is all well and fine, but it tells me that "Length" is not a member of the file class "Rectangle", when it plainly is. And it's only "Length" and "GetArea", not any of the other variables I refer to. I would've tried to look it up, if I even knew what I was looking for, but this problem has stumped me! I'll add the snippet of code that I'm trying to refer to the "Length" and "GetArea" with, as well as the parts of code that those two are in the "Rectangle" file.
'displays cost of sod
Dim floor As New Rectangle
Dim dblPriceSqYd As Double
[code]....
As you can see, it's obviously there. The code for the "Width" is exactly the same as the "Length" with a few name changes. My problem here is: I can't figure out why it's having trouble calling those two, when it calls the "Width" just fine. I've tried changing around the names, and nothing seems to work.
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Apr 16, 2009
This does not work because it will not write when the writers closed how do I keep it open? What do I have to change?
Dim tring As Integer
Dim startnumber1 As Integer
Dim bas As New System.IO.StreamWriter(SandboxLocation.Text & "internetconectivity.bat")
bas.InitializeLifetimeService()
[Code] .....
If tring is more than one it doesn't work, it cant write to a closed bat file.
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May 5, 2010
i want to search item A (from a list of X items) in list B but i want to get the item not found example Search ITEM A in LIST B if not found then return a print....if found continue with ITEM B..and so on.
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Jan 9, 2012
I know this idea of - if message boxes are used to display error messages inside a .dll and when the .dll is installed in a different computer (possibly a server machine), errors occurring inside that .dll will be shown in the server and not to the user. Since practically there will not be a person near the server to click 'OK' to the error message every time it occurs it will stuck the programs using the .dll.
So how to write exception handling to a .dll project?
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Jul 15, 2009
I have a large solution which contains a mixture of C# and VB.Net projects.If I get compilation errors because a project which several other projects depend upon fails to build, it is very hard to see the actual error(s) because of the number of VB errors in the error list window in Visual Studio. C# errors found in the projects I compiled show in the error list, but all VB errors appear (including in those projects I have not just compiled).Is there any way of turning off this behaviour so that VB errors only appear for projects that I have explicitly compiled?
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Apr 4, 2011
In the game I'm making I have a background worker thread simulating the game and constantly outputting data to a file.I want to be able to access that file while simulation is going on. I understand that you can't access the same file simultaneously in two threads so I don't mind having the program (say on a button click) wait until the simulation isn't using the file.I can't seem to do that though! Whenever I either save or load the file I have a bolAccessingFiles variable which I check to make sure things don't happen simultaneously. I change the value to True just before opening any files and False just after closing any files.
This doesn't seem to work though. It seems as though the computer will still be using the file in some way even though the code has kept going. I need that when I next access the file I have a stronger way of checking if the file is already in use, and if so make it wait."The process cannot access the file 'C:UsersDavidDocumentsVisual Studio 2010ProjectsGameGameinx86Debugoutput.txt' because it is being used by another process."
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Apr 11, 2011
When I publish the program. Is there any way to get VB to publish the text files with the program so that no errors can occur. When I install and run the published program I get a series of errors relating to text files that are not found.
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Feb 10, 2010
how I can search a folder of csv files to find out if one of the csv files has a particular name in ?I'm currently searching a folder to bring back all csv files using the code below and this is working fine.
[code]...
But now I want to take it a step further and actually search within the files themselves.
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Jul 14, 2011
I have a VB.NET project in Visual Studio 2008 that I created a specialized addin for. The addin prompts the user to select a database table, takes a template form class's files, copies them to another directory within the project, and renames the form class within the copied files. It then opens the new form and adds controls to it based on the fields in the database table.
The copying of the template form causes the background compiler to give 'duplicate member' errors, such as "Private Sub InitializeComponents(...) has multiple definitions with identical signatures," even though I renamed the files of the new form and the class name within them. Sometimes these errors go away before the new form is opened, but when they stick around the new form doesn't open correctly, and it throws an error instead. I implemented some code to wait until there are zero errors in the error list before trying to open the new form. This has helped sometimes, but for some reason sometimes the errors don't go away at all until the addin is closed.
How to copy the template form and rename the copy without the background compiler ever noticing duplicate members. If that's not possible, then perhaps someone has an alternative?
Here is my code that copies and renames the template form:
Private Sub CreateDataForm(ByVal tableName As String, ByVal displayName As String) ', ByVal subDataForms As IList(Of Object))
Try
Dim dataFormClassName As String = "frm" & MakeValidName(displayName)
Dim dataFormFileName As String = dataFormClassName & cVBSuffix
[CODE].......................
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Dec 14, 2009
I am trying to create a program which will read the files that exist in a directory, and then write in a text file the specific information (full file name, date created)i have found several code in the site but i cant make it work, the machine i am running the code is XP and i am using VB2008.The code i have found is the following:
Imports System.IO
Imports System.String
[code].....
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Jun 3, 2010
I have a SQL Server table with a list of files (path + filename), and a folder with multiple layers and files in each layer. I'm looking for a way to reconcile the two without having to process the list twice. Currently, I'm doing this:
For Each f as FileInfo In FileListFromDatabase
If f.Exists is False, mark it as deleted in the database
Next
[Code]....
Is there a better way to do this? I'd like to avoid converting all the matching files (of which most will be) to FileInfo objects twice. Since I'm a T-SQL developer first, I'm picturing something like an OUTER JOIN of the two lists where they don't match. Something LINQ-ish?
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Jun 9, 2011
How to list all files in a folder including subfolder files.
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Aug 17, 2010
i have this right now:
ListBox1.Items.Clear()
Dim di As New IO.DirectoryInfo(TextBox1.Text)
Dim aryFi As IO.FileInfo() = di.GetFiles("*.*")[code]......
and that displays only the file name, like text.txt but i want it to display C:/Text.txt and all the files in the subfolders too, like C:/Program Files/Test2.txt but i just get test.txt from only the c:/ .
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Feb 14, 2009
i need help with searching files.Example: I want to find all .jpeg files on computer or in a specific folder. And when i/it found the files it lists them up i something that you recommend, like a listbox.
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May 14, 2012
I have a checkbox list containing the entries from my database. I also have a search bar at the top of the page. How can I search for a checkbox using the search bar. What I am doing now is not returning anything to screen, it just remains at the same screen. My checkbox list id is check1 and my search bar id is search. So on click of my search button I run the following code:
[Code]...
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Jul 18, 2012
I have a question on searching a List(Of CLass). I am not sure how it is labeled List<OF T> or List(Of Class) However you label it here is the Class EXT.[code]As you can see from the SearchForExtension Sub I have 4 different ways to search for the extension. The index is used to select the searched for row in the DataGridView.
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Mar 10, 2010
I have been practicing making small programs in a feeble attempt to learn something, but have hit a brick wall. I can not find out how to accomplish the seemingly simple task of searching a list box(containing names of music files) based off the parameters entered in a text box.
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May 13, 2009
I recently upgraded a project from 2003 to 2005, and there were errors in them, but I am unable to view any in the error list. Only one error displays in the list
[Code]...
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Jul 21, 2009
Can anybody show me the code to search all the files in the system? i also need to search it drive-wise.
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Apr 11, 2012
I have around 50000 XML files with a size of 50KB per file. I want to search for data in these files, but my solution so far is very slow. Is there any way to enhance the search performance?
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