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I have the following VB function which takes a FileInfo object as a parameter:
Public Shared Shadows Sub Start(ByVal filePath As FieldInfo)
XmlConfigurator.ConfigureAndWatch(New System.IO.FileInfo(filePath.ToString()))
End Sub
In another class I have the following code calling that 'Start' method. But VisStudio indicates there is a problem with the 'FilePath' argument that I'm passing.
[Code]...
This is my
[Code]...
This is my error: Operator '=' is not defined for type 'FileInfo' and type 'Boolean'.
I have created a BitArray which is 11 bits long.I want to convert the BitArray so I can save the bits to a SQL server database field as a binary [varbinary(50)] so I can retrieve it at a later date and convert it back to a BitArray.Using examples on MSDN I have cobbled together the code I think I need.
Dim myBits As New BitArray(11)
I have populated the bitarray with 11111111111 for the purpose of testing ' Creates and initializes the one-dimensional target Array of type integer.
Dim myByteArray As Array = Array.CreateInstance(GetType(Byte), 11)
Note: from the above MSDN description this is an array of type integer - is this correct? I think it is a type 'byte' ?
' Copies the entire source BitArray to the target BitArray, starting at index 0.
myBits.CopyTo(myByteArray, 0)
I wanted to print the contents of myByteArray to a console to see what was going on. MSDN provided these print methods
Public Overloads Shared Sub PrintValues(ByVal myArr() As Array)
Dim i As Object
For Each i In myArr
Console.Write(ControlChars.Tab +
"{0}", i)[code].....
trouble is, I am getting the following error which suggest I havent succesfully created the byte array:
Error 2 Overload resolution failed because no accessible 'PrintValues' can be called without a narrowing conversion:
'Public Shared Overloads Sub PrintValues(myArr() As Integer)': Argument matching parameter 'myArr' narrows from 'System.Array' to '1-dimensional array of Integer'.[code].....
VB Code:
Dim fi As New FileInfo(PicPath)
Dim di As DirectoryInfo = Directory.CreateDirectory(Path)
Dim FileNameRandThumb As String = POath & ThumbFileName
[Code]....
This Code results in copying the Image correctly but the original image is now 0kb
I'm populating a Repeater with a PagedDataSource and after I populate that Repeater, I want to perform some other operations on the subset of data that makes up the page I'm sending to the Repeater (my CurrentPage Index, PageSize=10). So my question is how to get at those 10 records?
From reviewing MSDN, it looks like I should be able to use PagedDataSource.CopyTo to copy that to a System.Array, but I seem to be getting "Index was outside the bounds of the array." (I'm not sure how I need to be setting the bounds of the array from the PagedDataSource.)
Alternatively, I'd be happy if I could get those records into a SqlDataReader or any other way to read them and do more with them other than just displaying in my Repeater (again, looking for the records from that page that I set as the DataSource on my Repeater) Or, am I going about this the wrong way and is there a way to pull these back out of the Repeater?
I am trying to the copy the value from string to char array using String.CopyTo() method.
Here's my code
Dim strString As String = "Hello World!"
Dim strCopy(12) As Char
strString.CopyTo(0, strCopy, 0, 12)
[code]....
Edit : I get the this error at runtime.ArgumentOutOfRangeException Index and count must refer to a location within the string. Parameter name: sourceIndex
All tutorials I read before used Extension property to get the extension of a file. How can I get the type of file as a phrase? Example: .vb is 'Visual Basic Source File'. Like what Windows does in the Properties window of a file.
View 9 RepliesI'm using this query:
Dim FilesDirsQuery = From file In
_directory.EnumerateFileSystemInfos()
Select file.Name, file.Extension
It gets all files and directories in the _directory. But how to order the query by extension and name?
So I found that I have to use this to order by extension:
Dim FilesDirsQuery = From f In
_directory.EnumerateFileSystemInfos()
Select f.Name, f.Extension Order By Function(f As IO.FileInfo)
Return f.Extension
End Function
And I have to use "ThenBy", but it can't be used in my example. So I tried:
FilesDirsQuery.OrderBy(Function(f As IO.FileInfo)
Return f.Extension
End Function).ThenBy(..)
But it say's that my nested function doesn't have a compatible delegate. So what should I do?
I've got a Samsung Q1 attached to my computer, and I was hoping to use the FileInfo / DirectoryInfo objects to access the file on the device, however what I right click on a file in windows explorer I get a location of COMPUTER/Q1/DATACASTS/mine.mp3, and when I feed this into the DirectoryInfo object I get "Invalid network drive"
Something tells me I'm going about this the wrong way ... Is there a differant object I shoud use, or is my location string incorrect in format
I have used log4net in winforms before. First time using with a wpf console app. The console shows up and the console appender works exactly as in the winforms app. However in winforms I never had to give the full path to the log4net xml file. It is located in the same place where all the cs files are. (the default place where VS 2010 puts all its source files. So
XmlConfigurator.ConfigureAndWatch(new System.IO.FileInfo("log4config.xml"));
works in a winforms app's Program.cs->main() but for the wpf version where I have my own Startup class with my own Main() (instead of the autogenerated and hidden main()) I have to change the line to look like this
XmlConfigurator.ConfigureAndWatch(new System.IO.FileInfo(@"c:fullpathlog4config.xml"));
This took me quite a while to nail down so I thought it may be worthwhile to figure why this is so. Anyone know ? I am using log4net ver 1.2.10.0. The log4net dll and xml both have copy to local = true in winforms and wpf.
I need to find the newest file in a file folder by looking at the creation date. What is the best way to go about this?
I already have the code below to do some other work. Can I insert code to do the comparison inside the For...Each,
Dim sourceFiles As FileInfo()
Dim sourceFile As FileInfo
For each sourceFile in Sourcefiles
...existing code
Next
is there something equivalent to fileinfo.exist to a Uri object?
for eaxample if Uri.exist=true then do something
I am making a small utility to rename my music library to the same syntax (00-Artist-Album-Title.mp3). All the files are MP3 and are correctly tagged (ID3). This is my current
VB.NET
Sub Main()
Console.WriteLine("Press any key to continue...")
[Code]...
Line 33 is where I need to get the song's ID3 tags from Song. I've done a fair amount of research but I can't find anything current or relevant.
I have a List of FileInfo objects that I want to sort by creation date & file size. Is there a way to do that?
View 5 RepliesI'm having bizarre performance results of the methods in FileInfo class.I'm using 5 methods of the FileInfo class in the Paint event.The datagridview is bound to the dataset.First the application searches files in the RecursiveSearch. When rows are added to the dataset the Paint event is fired and the rows displayed are filled with extra information from the FileInfo class . In this case the performance is very good. If I remove the DoEvents() from the RecursiveSearch the 5 methods of the FileInfo class become very slow (about 0.25sec for each line of code)!When the search ends, the user can scroll down to see the other files listed.At this point the Paint is again fired. This time the 5 methods of the FileInfo class are again very slow!
Private Sub RecursiveSearch(ByVal sPath As String, ByVal strPattern As String) System.Windows.Forms.Application.DoEvents() Try Dim strFolders() As String = System.IO.Directory.GetDirectories(sPath) Dim strFiles() As String = System.IO.Directory.GetFiles(sPath,
[code].....
I'm trying to create a song playlist for my application.I'm using system.io.fileinfo for displaying playlist file names by listbox and a second listbox for reading playlist files' contents.
Public Class Form1
Dim fi As IO.FileInfo
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles
[code]....
I am using FileInfo to create a list of files in a directory. Is is possible to get video or image resolution as well using FileInfo. If not, what is the best way to pull that info down so I can include it in my csv file.
View 10 RepliesI have been having problems with creating a download list of files for a downloader and was getting unexplained "File Does Not Exist" returns. My .avi files were returning found but but .exe and .txt files were getting the not exists.
I have now found by pulling in the whole directory and examining the file contents that my .exe files are showing ".exe.exe". My .txt files are showing ".txt.rtf". Wow, browsing the file directory in Server 2008 only shows a single extension. I don't see an option to display the extension as a column, just the "type". My directory looks like this:
Name Type
File1.exe Application
File2.txt Rich Text Document
File3.avi AVI File
I had renamed some of these files, maybe I just cannot rename files. I will try using originals ans see if I am ok. Maybe I need to rename the offending files without the displayed extensions. Is this just something weird with the server browser?
I have an application written using VB.Net, framework 3.5.In the application I read LastWriteTime and CreationTime values for a file saved in file system. In general,the code works fine except one case when the application is started using Citrix environment. In this case the returned value for bithproperties is January 1, 1601.
View 2 RepliesHow to access the fullpath field in a fileinfo object
View 3 RepliesOK I am working on a windows service that monitors specific directories and checks to see if a file is changed. If a file is changed, it is attached to an email and sent to an admin.
The way I solve the problem...
I create a FileInfo object to do the following:
-I check to see if the file has an extension that is allowed to be attached
-I check to see if the file is under a max size to be attached
I create an Attachment object to do the following:
-attach the file to an email
I then send the email. The problem with this is when I edit the file after it is successfully attached the first time, I CANNOT save changes to that file. I get an error message saying that it is being used and cannot change it. My solution to this problem is to call the "dispose()" method of the attachment class. When i do this, I can edit the file all I want to and the first attachment works but after that the "dispose()" method always throws an exception and the file is never attached to the email when the file is edited again. Why is this happening?
In the following code as you see I am defining myFile inside the timer sub; which of course is not a good idea. The FilePath is derived in form load before the timer kicks in. How can I declare myFile globally so it can be used in timer sub as well as in form load?
Private Sub tmrInterval_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles tmrInterval.Tick
Dim myFile As New IO.FileInfo(FilePath)
If myFile.Exists Then
...
...
I want something like this:
Public Class Form1
private myFile As New IO.FileInfo()
'but I do not have strMessageFilePath value yet, that will be achieved in form load.
2 - Saves the server XML file it into a folder separate from the root folder of the application.3 - Deletes the local XML file in the root folder of the application.4 - Copies the server XML file to the local folder of the application.5 - Opens the application.6 - Closes the updater.Now when the application opens, it reads this XML file in the local folder. When I run it stand alone, it works fine and can find this XML file. However, my problem is when the application is opened by the updater, it can't read the XML file in the local folder. I check for this file doing File.Exists(XMLfilename) and it returns false but like I said, if I close the application and reopen it it works fine.
I'm thinking that for some reason the updater is "locking" this file so my other process can't read it? I can't close the process before I open the original application so I'm not sure what's happening here. My Update Folder is the users ApplicationData folder and the root directory of the application is in the Program Files folder.
This is my code in the updater:
Dim ImageDir As DirectoryInfo
Dim fi As FileInfo
[code].....
I have a project where I am looping thru specific files in a directory using a For Each FileInfo in DirectoryInfo.GetFiles() statement. My question is if I overwrite the current FileInfo object, will it still retain the reference to the object even though the file is no longer the same?
Code Snippet:
For Each fi In folder.GetFiles("*.idx")
Dim reader As IO.StreamReader = fi.OpenText()
index = reader.ReadLine()
values = index.Split(",")
[code]....
I have built a recursive file system crawler that amasses file system data from a file share. I use the FileInfo object to get my metrics, however, I am finding that in especially deep file structs, that the ol' 260 character MAX_PATH MS bug crops up ':8-0:'. This puts me in my angry place, since I do not seem to be able to get around it no matter what kind of programmatic tom-foolery I try.
So far, I have tried:- converting to 8.3 format --> no good path + filename STILL is > 260 (believe it or not) - tried to go with a Straight low-level API approach
What I have found is some pretty Sketchy information regarding VB implementation of the kernel32 api's in this regard (just try & find a createfile port for vb.net, I couldnt)
Anyway, I guess I was hoping that someone else has run into this pain, and knows how to make a surefire way to get a file's information (size, dates esp), regardless of how long and painful the path may in fact be...
I have a utility that is a simple exe that is not installed compiled with VS2005 and works well. But when I upgraded to VS2008 the utility can no longer locate files in the active system folder. I have UAC turned off and am logged in as the Administrator and it still can not locate a file that I can see in Windows Explorer. The file I am looking for is PakMgr.exe.
View 1 RepliesI get the error: Conversion from type 'FileInfo' to type 'String' is not valid. This happens in between try and end try
Private Sub CopyNotes()
Dim NotesBase As String
Dim NotesTgt As String
[Code].....
How can be find out which file is going to delete when, user provides command like DELETE or SHIFT + DELETE or by programmatically gives DELETE command. Well I know about FileSystemWatcher Class, but this class doesn't provide information before delete...
View 1 RepliesI have a project that reference from leadtools 16.5, and after that, i want to run my project..i see am error like it " An error occurred creating the form. See Exception.InnerException for details. The error is: Attempted to read or write protected memory. This is often an indication that other memory is corrupt. im using vb 2008 pro
View 6 Replies