If i want to keep the content of a textbox i do this
TextBox1.Text = TextBox1.Text & Something
Is there a way to do the same thing for the content of Items of a Listbox?
In my RichTextBox3 i have the list of files in the C:\Work directory
I Tried this code but it's giving me The content of the last line (It's not adding the lines before)
Do Until number = RichTextBox3.Lines.Length
Dim directory = "C:\Work\" & RichTextBox3.Lines(number)
Dim files() As System.IO.FileInfo
Dim dirinfo As New System.IO.DirectoryInfo(directory)
files = dirinfo.GetFiles("*", IO.SearchOption.AllDirectories)
For Each file In files
ListBox1.Items.Add(file)
Next
number = number + 1
Loop
Help is appreciated
Thanks to all of you
I'm not sure that this will address your stated problem but there's a serious issue with that code and I need to provide a long code snippet to address it and that won't be readable in a comment.
The Lines property of a TextBox or RichTextBox is not "live" data, i.e. it doesn't refer to an array stored within the object. Each time you get the property, a new array is created. You are getting RichTextBox3.Lines twice for every iteration of that loop, so that's obviously wrong. You also should not be adding items to the ListBox one by one like that. You should be creating a list of all the items first, then adding them all with a single call to AddRange:
Dim files As New List(Of FileInfo)
For Each line In RichTextBox3.Lines
Dim folderPath = Path.Combine("C:\Work", line)
Dim folder As New DirectoryInfo(folderPath)
files.AddRange(folder.GetFiles("*", SearchOption.AllDirectories))
Next
ListBox1.Items.AddRange(files.ToArray())
If that code doesn't work as expected, you can debug it and view the contents of files at various stages to make sure that you are getting the files you expect. It might also be worth testing folder.Exists before calling GetFiles, unless you're absolutely sure that each line in the RichTextBox represents an existing folder.
This will do what you want.
number = 0
ListBox1.items.clear()
Do Until number = RichTextBox3.Lines.Length
Dim directory = "C:\Work\" & RichTextBox3.Lines(number)
Dim files() As System.IO.FileInfo
Dim dirinfo As New System.IO.DirectoryInfo(directory)
files = dirinfo.GetFiles("*", IO.SearchOption.AllDirectories)
For Each file In files
ListBox1.Items.Add(file)
Next
number = number + 1
Loop
Related
I am working on a program that will move files to a database, text files to be exact. The user will have a starting directory and inside will multiple sub folders and files and so on. I want to go through each Folder and sub folder looking for the text files and add them accordingly to the database so it resembles a directory structure in a way. In the program the files are organized such as the folders are "Categories" that are displayed into a tree view.I am only adding the folder names(as Categories) that do contain text files and their subs and so forth. As well I need to figure out where to plug in the adding of the "Category". As of right now I am using a couple of listboxes for my output until I can get it all figured out.
lstfiles.Items.Add(Dir)
For Each file In System.IO.Directory.GetFiles(Dir)
Dim fi As System.IO.FileInfo = New IO.FileInfo(file)
If fi.Extension = ".txt" Then
If lstRootFolderFiles.Items.Contains(file) = False Then
lstfiles.Items.Add(file)
AddFile(file, Gennumber(9999))
End If
End If
Next
For Each folder In System.IO.Directory.GetDirectories(Dir)
lstfiles.Items.Add(folder)
For Each file In System.IO.Directory.GetFiles(folder)
Dim fi As System.IO.FileInfo = New IO.FileInfo(file)
If fi.Extension = ".txt" Then
If lstRootFolderFiles.Items.Contains(file) = False Then
lstfiles.Items.Add(file)
End If
End If
Next
Next
I have gotten so far as to iterate through the directory and get files but it returns folders that are empty. And I need to figure out where I need to put in my addcategory function. And also remember the last one that was added so they can be added as a subcategory.
I think I am making a big mess of it all, or over thinking the whole thing.
Any assistance or guidance would be appreciated.Thank you
The end result that I came up with was much different from my original posting, as it was my way of thinking of how it was going to work. I split up the two main functions. Retrieving the Folders and retrieving the files.
DirEx is the Import Directory, CatID is the Tag of the selected Treenode where the folders are going to added in.
Private Sub DirImport_GetSubDirectories(ByVal DirEx As String, ByVal CatID As Integer)
Try
Dim ClsData As New clsNoteData
'Set the DatabaseFile Property of the class
ClsData.Database = LoadedLibraryDatabase
' Get all subdirectories
Dim subdirectoryEntries() As String = Directory.GetDirectories(DirEx)
' Loop through them to see if they have any other subdirectories
Dim subdirectory As String
For Each subdirectory In subdirectoryEntries
'If the Directory is not Empty
If Not Directory.GetFileSystemEntries(subdirectory).Length = 0 Then
Dim di As DirectoryInfo = New DirectoryInfo(subdirectory)
'Creating Random Number
Dim NewCatID As Integer = GenNumber(9999)
'Call for a new Sub Category
ClsData.NewSubCategoryNode(LoadedLibraryDatabase, NewCatID, CatID, di.Name, -1)
'Get files in the current Directory
DirImport_GetFiles(subdirectory, NewCatID)
'Get the next set of Subfolders
DirImport_GetSubDirectories(subdirectory, NewCatID)
End If
Next
Catch ex As Exception
End Try
End Sub
Private Sub DirImport_GetFiles(ByVal DirEx As String, ByVal CatID As Integer)
Dim Files() As String = Directory.GetFiles(DirEx, "*.txt")
Dim file As String
For Each file In Files
Dim clsNoteData As New clsNoteData
Dim fi As FileInfo = New FileInfo(file)
clsNoteData.Database = LoadedLibraryDatabase
clsNoteData.NewNote_ID = GenNumber(99999)
clsNoteData.NewNote_CatID = CatID
clsNoteData.NewNote_Title = Path.GetFileNameWithoutExtension(file)
clsNoteData.NewNote(False, file)
Next
End sub
So here it is for anyone who may want to do something similar.
I have Combobox, and I select folder names in It. This folder has to be searched first. In these folders are also folders named "Versions"- and these folders have another folders which I need to add on Listview. I tried this but nothing is added to my Listview:
Dim Folder_To_Search As String() = IO.Directory.GetDirectories("D:\", MyCombo.Text, System.IO.SearchOption.AllDirectories)
For Each folder As String In Folder_To_Search
ListView1.Items.Add(Path.GetFileName(folder + "\Versions\"))
Next
I guess I'm missing something after + "\Versions\", can somebody give me a clue ?
Nothing is being added to your listview because GetDirectories returns, as its name implies, directories. So you're getting your list of directories and then using Path.GetFilename on each of them, but the directories do not have a filename at the end of them so only empty strings are being added to your listview.
Edit for Comment: Then it sounds like you need to run basically two nested directory searches; the first one for folders like "Microsoft" and the second for "Versions" within Microsoft folders, then loop through and get the files:
Dim TopLevelDirectories As String() = IO.Directory.GetDirectories("D:\", "*" & MyCombo.Text & "*", System.IO.SearchOption.AllDirectories)
For Each tlDir As String In TopLevelDirectories
Dim SubLevelDirectories As String() = IO.Directory.GetDirectories(tlDir, "*Versions*", System.IO.SearchOption.AllDirectories)
For Each slDir As String In SubLevelDirectories
Dim dInfo As DirectoryInfo = New DirectoryInfo(slDir)
Dim fInfo() As FileInfo = dInfo.GetFiles
For Each f As FileInfo In fInfo
ListView1.Items.Add(f.FullName) 'or ListView1.Items.Add(f.Name)
Next
Next
Next
If I understand your goal correctly, the code above should find all the files you're looking for. I made some test folders and threw Microsoft/Versions in at different levels of the directories and this code picked them all up
I'm trying to make a program that checks for specific file type in a directory, then executes a code if there are any files of that type found.
I'm assuming something like this:
For Each foundFile As String In
My.Computer.FileSystem.GetFiles(My.Computer.FileSystem.SpecialDirectories.MyDocuments)
(If any found files are, for example, "txt" files, then display their content.)
Next
Thanks in advance.
You can use Directory.GetFiles or Directory.EnumerateFiles with a parameter for the extension-filter:
Dim directoryPath = My.Computer.FileSystem.SpecialDirectories.MyDocuments
Dim allTxtFiles = Directory.EnumerateFiles(directoryPath, ".txt")
For each file As String In allTxtFiles
Console.WriteLine(file)
Next
The difference between both methods is that the first returns a String(), so loads all into memory immediately whereas the second returns a "query". If you want to use LINQ it's better to use EnumerateFiles, f.e. if you want to take the first 10 files:
Dim firstTenFiles As List(Of String) = allTxtFiles.Take(10).ToList()
Dim di As DirectoryInfo = New DirectoryInfo(My.Computer.FileSystem.SpecialDirectories.MyDocuments)
For Each fi In di.GetFiles("*.txt")
Dim content As String = My.Computer.FileSystem.ReadAllText(fi.FullName)
Console.WriteLine(fi.Name)
Next
I am trying to get my application to check for folders in the folderbrowserdialogs selectedpath and then get those files, but it doesn't work I have tried both listed ways below. The second way gives me an error: (Expression is of type char which is not a collection type)
For Each folder In FileBrowserDialog.SelectedPath
Dim counter As _
System.Collections.ObjectModel.ReadOnlyCollection(Of String)
counter = My.Computer.FileSystem.GetFiles(folder)
Label1.Text = counter.Count.ToString
Next
For Each folder In FileBrowserDialog.SelectedPath
Dim counter As _
System.Collections.ObjectModel.ReadOnlyCollection(Of String)
For Each foundfile In folder
counter = My.Computer.FileSystem.GetFiles(foundfile)
Label1.Text = counter.Count.ToString
Next
Any help is appreciated.
FolderBrowserDialog1.SelectedPath will return the path the user selected in the dialog. You still need to write code to go get the files. There may not be a need to get the folders and then files in them. Net has ways to do that for you:
FolderBrowserDialog1.ShowDialog()
Dim myPath As String = FolderBrowserDialog1.SelectedPath
' get all files for a folder
Dim files = Directory.GetFiles(myPath)
' get all files for all sub folders
Dim files = Directory.GetFiles(myPath, "*.*",
System.IO.SearchOption.AllDirectories)
' get certain file types for folder and subs
Dim files = Directory.GetFiles(myPath, "*.jpg",
System.IO.SearchOption.AllDirectories)
You also are not going to be able to simply assign the results to a ReadOnlyCollection like that, because they are ReadOnly. The collection needs to be created/instanced with the complete list:
Dim counter As new ReadOnlyCollection(Of String)(files)
I need to require the user of this program to select two text files from any directory. I then need to display them in a List View, which I have built. File 1 needs to load into the first column and File 2 needs to load into the second. They will correspond to each other.
I currently have the following to allow multiselect
OpenFileDialog.Multiselect = True
What I am having trouble with is separating these unique files into corresponding columns. For example, the following code very effectively loads the first file's contents into the first column:
Dim fileName As String = OpenFileDialog.FileName
fileReader = New StreamReader(fileName)
Do While fileReader.Peek() <> -1
firstFile = fileReader.ReadLine & vbNewLine
ListView1.Items.Add(firstFile)
Loop
When I choose the second file, the first file's contents are replaced within the same column by the second file's contents.
I have looked at using an array, but am unsure how to load the unique files into each index.
I'm not really sure where to go from here.
When you use
OpenFileDialog1.Multiselect = true
All selected files are already stored as a collection in OpenFileDialog1.FileNames, just loop through all values and put them into the listview
ListView1.Items.Clear
Dim file as string
For Each file in OpenFileDialog1.FileNames
ListView1.Item.Add(file)
Next
if you want to show the file content in different columns, then you may need to change a little bit of your code
Dim fileName As String = OpenFileDialog.FileName
fileReader = New StreamReader(fileName)
Dim FileItem As New ListViewItem
Do While fileReader.Peek() <> -1
firstFile = fileReader.ReadLine & vbNewLine
FileItem .SubItem.Add(firstFile)
Loop
ListView1.item.add(Item)
However you may need to declare the columns in the ListView1 before adding any item. If not columns define in your ListView1, then it is not possible to show the columns even you have put your file content into the subItem