Get Sub Directory Files and Add to String Array - c#

I am trying to insert the full directory path as well as the file and extension into the String Array but I am not getting it, any chance someone has a better way to do this.
I am using the nested for each because there is a list of Directories below the main directory "directoryInfo" that have the files I am looking for.
string[] moveLocalFiles;
List<String> localFiles = new List<String>();
DirectoryInfo directoryInfo = new DirectoryInfo(sourceFilePath);
try
{
foreach (DirectoryInfo i in directoryInfo.GetDirectories())
{
foreach(FileInfo f in i.GetFiles(".twb"))
{
localFiles.Add(f.ToString());
}
moveLocalFiles = localFiles.ToArray();
foreach (string filePath in moveLocalFiles)
{
//do something
}
}
catch (Exception ex)
{
throw ex;
}

As Dan says you're definitely missing a "*" in your filter, but more than that you should use the FullName property, like this:
localFiles.Add(f.FullName);
Also (but this could be a desired behavior) you're browsing only the first level of subdirectories of "sourceFilePath" (excluding that directory as well).
And also in the sample code there's a missing bracket just before the "catch" line (but I understand this is just a sample code that you pasted here and not your real program).
I hope this helps.

It looks like you're missing a * before .twb in the GetFiles call.

If you want to get the full path to each Directory and File you can either use your own method just altered slightly:
foreach (DirectoryInfo i in directoryInfo.GetDirectories())
{
foreach (FileInfo f in i.GetFiles("*.twb")) //The * is a wildcard search for anything
{
localFiles.Add(f.FullName); //FullName returns the full path
}
}
Or you can use the System.IO.Directory class like so:
foreach (string i in Directory.GetDirectories("path to directory"))
{
foreach (string f in Directory.GetFiles(i, "*.twb")) //The * is a wildcard search for anything
{
localFiles.Add(f);
}
}

Related

Accessing files within child directories

I am trying to access the files in the images directory that lies within another directory but when I run my code it doesn't print out anything:
string path = #"C:\Path";
DirectoryInfo DFolder = new DirectoryInfo(path);
Collection cDetails = new Collection(DFolder);
string DFPath = DFolder.Name;
DirectoryInfo imDetails = new DirectoryInfo(imPath);
// Get Desired Directories
List<string> directoryFilter = new List<string> {"images", "videos", "RAW"};
List<DirectoryInfo> directoryList = DFolder
.GetDirectories("*", SearchOption.AllDirectories)
.Where(x => directoryFilter.Contains(x.Name.ToLower()))
.ToList();
string dpath = directoryList.ToString();
foreach (DirectoryInfo record in directoryList)
{
foreach (FileInfo file in record.GetFiles(#"*", SearchOption.TopDirectoryOnly))
{
Console.WriteLine(file); //It compiles but doesn't print anything on the console
}
}
Note: This isn't really an answer, so I'll delete it shortly, but wanted to give some sample code to test with in case it helps.
Your code works fine for me, so it seems that the problem is that either the directories don't exist, or they don't contain any files.
Here's a test program you can run which creates a bunch of directories under c:\temp, some of which have the names we care about. The names we care about are also found at different levels of depth in the path, yet they are all discovered:
static void CreateTestPathsAndFiles()
{
// Paths to create for testing. We will put a file in each directory below,
// but our search code should only print the file paths of those files that
// are directly contained in one of our specially-named folders
var testPaths = new List<string>
{
#"c:\temp\dummy1",
#"c:\temp\dummy1\raw", // This should print
#"c:\temp\dummy2",
#"c:\temp\dummy2\extra",
#"c:\temp\dummy3",
#"c:\temp\dummy3\dummy31",
#"c:\temp\dummy3\dummy32\raw", // This should print
#"c:\temp\extra",
#"c:\temp\images", // This should print
#"c:\temp\notUsed",
#"c:\temp\notUsed\videos", // This should print
#"c:\temp\raw", // This should print
#"c:\temp\videos\dummy1",
};
// Just something to make a unique file name
int fileId = 0;
// for testing, ensure that the directories exist and contain some files
foreach(var testPath in testPaths)
{
// Create the directory
Directory.CreateDirectory(testPath);
// Add a file to it
File.CreateText(Path.Combine(testPath, $"TempFile{fileId}.txt"))
.Write($"Dummy text in file {fileId}");
// Increment our file counter
fileId++;
}
}
static void Main(string[] args)
{
// Create our paths and files for testing
CreateTestPathsAndFiles();
// Now set our root directory, search for all folders matching our
// special folder names, and print out the files contained in them
var path = #"C:\Temp";
var directoryFilter = new List<string> {"images", "videos", "raw"};
// Get ALL sub-directories under 'path' whose name is in directoryFilter
var subDirectories = new DirectoryInfo(path)
.GetDirectories("*", SearchOption.AllDirectories)
.Where(x => directoryFilter.Contains(x.Name.ToLower()));
foreach (DirectoryInfo subDir in subDirectories)
{
foreach (FileInfo file in subDir.GetFiles(#"*", SearchOption.TopDirectoryOnly))
{
// We're using the FullName so we see the whole file path in the output
Console.WriteLine(file.FullName);
}
}
GetKeyFromUser("\nDone! Press any key to exit...");
}
Output
Note that the 5 files we expected to find are listed, but no others:
foreach (FileInfo file in record.GetFiles(#"*", SearchOption.TopDirectoryOnly))
{
Console.WriteLine(file); //It compiles but doesn't print anything on the console
}
SearchOption.TopDirectoryOnly will only search files in C://Path/images but not its subfolders.
a possible fix for this is to simply change your 2nd foreach loop to look like this:
foreach (FileInfo file in record.GetFiles(#"*", SearchOption.AllDirectories))
{
Console.WriteLine(file); //It compiles but doesn't print anything on the console
}
Edit:
Using SearchOption.AllDirectories as parameter is supposed to catch all cases of subfolders within your subfolder e.g. something like C://images//dir//somefile.txt instead of only taking the files within the topdirectory(in this case C://images). Which is(as i understood your question) exactly the kind of behaviour you were looking for.
Full code:
{
static void Main(string[] args)
{
// Directory Info
string path = #"C:\Path";
DirectoryInfo DFolder = new DirectoryInfo(path);
string DFPath = DFolder.Name;
// Get Desired Directories
List<string> directoryFilter = new List<string> { "images", "videos", "raw" };
List<DirectoryInfo> directoryList = DFolder.GetDirectories("*", SearchOption.AllDirectories).Where(x => directoryFilter.Contains(x.Name.ToLower())).ToList();
string dpath = directoryList.ToString();
foreach (DirectoryInfo record in directoryList)
{
foreach (FileInfo file in record.GetFiles(#"*", SearchOption.AllDirectories)) //searches directory record and its subdirectories
{
Console.WriteLine(file);
}
}
}
Final Edit: Sample output given the following structure:
C://Path//images//images.somefile.txt
C://Path//images//temp//images.temp.somefile.txt
C://Path//raw//raw.somefile.txt
C://Path//vidoes//videos.somefile.txt

UnauthorizedAccessException with getDirectories

Hello everyone I currently got subdirectories I wanted through this call:
foreach (DirectoryInfo dir in parent)
{
try
{
subDirectories = dir.GetDirectories().Where(d => d.Exists == true).ToArray();
}
catch(UnauthorizedAccessException e)
{
Console.WriteLine(e.Message);
}
foreach (DirectoryInfo subdir in subDirectories)
{
Console.WriteLine(subdir);
var temp = new List<DirectoryInfo>();
temp = subdir.GetDirectories("*", SearchOption.AllDirectories).Where(d => reg.IsMatch(d.Name)).Where((d => !d.FullName.EndsWith("TESTS"))).Where(d => !(d.GetDirectories().Length == 0 && d.GetFiles().Length == 0)).Where(d => d.GetFiles().Length > 3).ToList();
candidates.AddRange(temp);
}
}
foreach(DirectoryInfo dir in candidates)
{
Console.WriteLine(dir);
}
so now my issue is that my final list called candidates I get nothing because im getting an access issue due to one of the folders called lost+found in my subdirectories folder in the try block. I tried using try and catch to handle the exception so I could keep doing my checks I actually dont care about this folder and im trying to just ignore it but I'm not sure how to go about ignoring it out of my get directories search any thoughts? I already tried doing a filter with .where to ignore any folder that contained the folder name but that didnt work either it just stopped my program at the folder name.
I have the same question (ResourceContext.GetForCurrentView call exception) about this exception (UnauthorizedAccessException), and this link gives an answer to the reason why this happens:
http://www.blackwasp.co.uk/FolderRecursion.aspx
Short quote:
... Key amongst these is that some of the folders that you attempt to
read could be configured so that the current user may not access them.
Rather than ignoring folders to which you have restricted access, the
method throws an UnauthorizedAccessException. However, we can
circumvent this problem by creating our own recursive folder search
code. ...
solution:
private static void ShowAllFoldersUnder(string path, int indent)
{
try
{
foreach (string folder in Directory.GetDirectories(path))
{
Console.WriteLine("{0}{1}", new string(' ', indent), Path.GetFileName(folder));
ShowAllFoldersUnder(folder, indent + 2);
}
}
catch (UnauthorizedAccessException) { }
}
You can use recursion like Microsoft explains: link.

How to get all the paths of exe in my computer with c#

Yes there any way by which i can get the paths of exe? I mean suppose i have 20 exes in my local disk c i want to get the paths of the exe like "C:\myexe.exe or it can be C:\dir\myexe.exe"
string getpathforexe[] = themethord;
foreach(string printvalue in getpathforexe)
{
messagebox.show(printvalue.tostring());
}
so what will be themethord?
What you essentially need is a safe, recursive, .exe search functions on a root folder, and you can apply it anywhere.
Something like this:
public static List<string> GetAllAccessibleFiles(string path, string searchPattern) {
List<string> dirPathList = new List<string>();
try {
string[] childFilePaths = Directory.GetFiles(path, searchPattern, SearchOption.TopDirectoryOnly);
dirPathList.AddRange(childFilePaths);
foreach (string childDirPath in Directory.GetDirectories(path)) { //foreach child directory, do recursive search
List<string> grandChildDirPath = GetAllAccessibleFiles(childDirPath, searchPattern);
if (grandChildDirPath != null && grandChildDirPath.Count > 0) //this child directory has children and nothing has gone wrong
dirPathList.AddRange(grandChildDirPath); //add the grandchildren to the list
}
return dirPathList; //return the whole list found at this level
} catch (UnauthorizedAccessException ex){
//Do something if necessary
return null; //something has gone wrong, return null
}
}
Be careful of a couple of things:
Not all directories are accessible. When you try to access an unaccessible directory, you would get UnauthorizedAccessException
By using recursive search, you want your search result to be failed only on the directory where you have no access right.
Nevertheless, if you apply this to all your folders, likely you will take very long time. It is best to apply it to particular folders which you want to search for .exe files.
Explanations:
In the function, given a path, if first lists the files in the directory top folder:
string[] childFilePaths = Directory.GetFiles(path, searchPattern, SearchOption.TopDirectoryOnly);
dirPathList.AddRange(childFilePaths);
If any of your files matches your search pattern, you add those files. Then next you check each folder consisted in your path directory:
foreach (string childDirPath in Directory.GetDirectories(path)) { //foreach child directory, do recursive search
List<string> grandChildDirPath = GetAllAccessibleFiles(childDirPath, searchPattern);
if (grandChildDirPath != null && grandChildDirPath.Count > 0) //this child directory has children and nothing has gone wrong
dirPathList.AddRange(grandChildDirPath); //add the grandchildren to the list
}
If any of the directory consists of any child folders, do recursive search to the children directories, and add the results together in the dirPathList and finally returns it:
return dirPathList; //return the whole list found at this level
Then you could get all the files with ".exe".
And in the catch, you probably want to check for the unauthorized access Exception:
catch (UnauthorizedAccessException ex){
//Do something
return null; //something has gone wrong, return null
}
You use it like this:
List<string> exefiles = YourClassNameWhoHasTheMethod.GetAllAccessibleFiles(testfolder, "*.exe"));
For example, you could test it with Recycle Bin like this:
string rbin = #"C:\$Recycle.Bin";
List<string> files = GetAllAccessibleFiles(rbin, "*.exe");
And these are what I get for the files:
C:\$Recycle.Bin\S-1-5-21-3161714743-1342575415-982792061-1001\$IYFMY6V.exe
C:\$Recycle.Bin\S-1-5-21-3161714743-1342575415-982792061-1001\$RYFMY6V.exe

Continue Foreach Loop On Error

I want to continue my code when error comes up , but i dont know how ...
here's my code :
foreach(string path in Directory.GetDirectories(#"C:\", "*.*", SearchOption.AllDirectories)
{
Console.WriteLine(path);
}
And the error comes on foreach(string path in Directory.GetDirectories(#"C:\", "*.*", SearchOption.AllDirectories) and i don't know how to continue this loop
and the error :
Unauthorized access
And even i run my code as Administrator this error comes up again
Thanks,
The best is to use recursive search and not using SearchOption.AllDirectories, but rather SearchOption.TopDirectoryOnly
If you use SearchOption.AllDirectories, one access violation will break your entire loop even before any file/directory is processed. But if you use SearchOption.TopDirectoryOnly, you only skip what is inaccessible.
Thus, to do it, you can create a method which receives a directory path as input. And in that method, if the input directory have child directory(ies) (see Directory.GetDirectories(string path) method, you call the method again for each child directory (recursive call) before you process all the files in the directory. Else, get the files (see Directory.GetFiles) in the directory and process them immediately.
Then for the method above, one way is to prevent the code crash when you cannot access certain file/directory is by using try-catch block for each child directory reading and file reading. This way, if one file/folder cannot be accessed, your code will still be running, finding the processing the next file/directory.
Alternatively, you can use Directory.GetAccessControl() per child directory check to see if you have an access to a Directory before hand (this option is rather hard though).
Edit (code added):
Something like this will do:
public static List<string> GetAllAccessibleDirectories(string path, string searchPattern) {
List<string> dirPathList = new List<string>();
try {
List<string> childDirPathList = Directory.GetDirectories(path, searchPattern, SearchOption.TopDirectoryOnly).ToList(); //use TopDirectoryOnly
if (childDirPathList == null || childDirPathList.Count <= 0) //this directory has no child
return null;
foreach (string childDirPath in childDirPathList) { //foreach child directory, do recursive search
dirPathList.Add(childDirPath); //add the path
List<string> grandChildDirPath = GetAllAccessibleDirectories(childDirPath, searchPattern);
if (grandChildDirPath != null && grandChildDirPath.Count > 0) //this child directory has children and nothing has gone wrong
dirPathList.AddRange(grandChildDirPath.ToArray()); //add the grandchildren to the list
}
return dirPathList; //return the whole list found at this level
} catch {
return null; //something has gone wrong, return null
}
}
And to call it, you can do something like this
string rootpath = #"C:\DummyRootFolder";
List<string> dirList = GetAllAccessibleDirectories(rootpath, "*.*"); //you get all accessible directories here
In the dirList you will get all the directories that you search for, and if there is access violation along the way, it will only affects sub-directories search due to the try-catch block.
Note that the rootpath is excluded in the method. But if you want to add it to the list too, you could simply do
dirList.Insert(0, path); //do this after you get dirList
There are also more complicated ways of doing this by using Directory.GetAccessControl and PermissionSet
Hope it may clarify.
According to the documentation, you should look at EnumerateDirectories for performance reasons:
https://msdn.microsoft.com/en-us/library/c1sez4sc(v=vs.110).aspx
Also, it appears that this question has already been answered before:
Directory.EnumerateFiles => UnauthorizedAccessException
Hope this helps!
How about this:
foreach (string path in Directory.GetDirectories(#"C:\", "*.*", SearchOption.AllDirectories)) {
try {
Console.WriteLine(path);
} catch (Exception ex) {
Console.WriteLine("Unable to access directories in path: " + path);
}
}

Iterate through a root directory and get all files in it?

hi
i am creating a application and i want to know the each and every file which is present under that one folder .i.e. how can i iterate through a root directory and get the each files visit at list once.
If you just need to list them all at once, you can just use the overload for GetFiles that includes the option.
string[] filePaths = Directory.GetFiles(#"c:\MyDir\", "*.*", SearchOption.AllDirectories);
Obviously, in a web app you wouldn't likely have access to "c:\MyDir", so you can replace that with a variable holding the results of a MapPath call like so:
var rootDir = Server.MapPath("~/App_Data");
Use the Directory.EnumerateFiles(String, String, SearchOption) function with SearchOption.AllDirectories:
foreach (var file in Directory.EnumerateFiles(#"c:\", "*.txt", SearchOption.AllDirectories))
{
// Do stuff here
}
EnumerateFiles method is way faster than GetFiles method since it actually just returns the enumerator and does not actually access the files until they are red.
You can use the DirectoryInfo and FileInfo classes as well as a recursive function.
void Main()
{
DirectoryInfo info = new DirectoryInfo(#"C:\Personal");
ListContents(info);
}
public void ListContents(DirectoryInfo info)
{
foreach(var dir in info.GetDirectories())
{
ListContents(dir);
}
foreach(var file in info.GetFiles())
{
Console.WriteLine(file.FullName);
}
}

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