Develop Reference

Copy specific Folder with 3 Files only to New Folder

One Question about coding (Visual Studio C# WindowsformApplication) There have Two folder: (Source and Target) and I build 1 button "Copy".
In "Source" folder have random folders such as "20190401", "20190402", "20190403", "20180401", "20170401" and "20160401". Every these folders have [10] .txt files. What is the coding if I only want to copy all "201904**" folders with [3] .txt files inside it to "Target" folder? Here is my code for now.
Code
** private void button1_Click
{
string FROM_DIR = "C:/Users/5004117928/Desktop/Source";
string TO_DIR = "C:/Users/5004117928/Desktop/Target/";
DirectoryInfo diCopyForm = new DirectoryInfo(FROM_DIR);
DirectoryInfo[] fiDiskfiles = diCopyForm.GetDirectories();
string directname = "201904";
string filename = ".txt";
foreach (DirectoryInfo newfile in fiDiskfiles)
{
try
{
if (newfile.Name == "2019")
{
foreach (DirectoryInfo direc in newfile.GetDirectories())
if (direc.Name.StartsWith(directname))
{
int count = 0;
foreach (FileInfo file in direc.GetFiles())
{
if (file.Name.EndsWith(filename))
{
count++;
}
}
if (count == 3)
{
DirectoryCopy(direc.FullName,Path.Combine(TO_DIR,direc.Name), true);
count = 0;
}
}
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
}
}
MessageBox.Show("success");
}
private static void DirectoryCopy(string sourceDirName, string destDirName, bool copySubDirs)
{
// Get the subdirectories for the specified directory.
DirectoryInfo dir = new DirectoryInfo(sourceDirName);
if (!dir.Exists)
{
throw new DirectoryNotFoundException(
"Source directory does not exist or could not be found: "
+ sourceDirName);
}
DirectoryInfo[] dirs = dir.GetDirectories();
// If the destination directory doesn't exist, create it.
if (!Directory.Exists(destDirName))
{
Directory.CreateDirectory(destDirName);
}
// Get the files in the directory and copy them to the new location.
FileInfo[] files = dir.GetFiles();
foreach (FileInfo file in files)
{
string temppath = Path.Combine(destDirName, file.Name);
file.CopyTo(temppath, false);
}
// If copying subdirectories, copy them and their contents to new location.
if (copySubDirs)
{
foreach (DirectoryInfo subdir in dirs)
{
string temppath = Path.Combine(destDirName, subdir.Name);
DirectoryCopy(subdir.FullName, temppath, copySubDirs);
}
}
}**
I expect after I click a button,
output is automatically copy all folders Name Start With "201904**" with [3] text files inside from "Source" folder to "target" folder.

I reckon you can search the directory with names directly using linq and can copy the sub folders/files inside it like below. It will give you the flexibility of filtering folders/files/skipping/taking n folders/files
string FROM_DIR = "C:/Users/5004117928/Desktop/Source";
string TO_DIR = "C:/Users/5004117928/Desktop/Target/";
string searchText = "201904";
string extension = "txt";
IEnumerable<string> dirs = Directory.EnumerateDirectories(FROM_DIR, "*", SearchOption.AllDirectories)
.Where(dirPath=>Path.GetFileName(dirPath.TrimEnd(Path.DirectorySeparatorChar)).StartsWith(searchText));
foreach (string dir in dirs)
{
string destDirPath = dir.Replace(FROM_DIR, TO_DIR);
if (!Directory.Exists(destDirPath))
Directory.CreateDirectory(destDirPath);
//Copy all the files & Replaces any files with the same name
foreach (string newPath in Directory.EnumerateFiles(dir, string.format("*.{0}",extension),
SearchOption.AllDirectories))// Here you can skip/take n files if u need
File.Copy(newPath, newPath.Replace(FROM_DIR, TO_DIR), true);
}
Have tested with sub folders and files inside source folder as well. Hope it helps.

Move Folder and its contents to Other Folder

I am working on an asp.net application where i have to move any Folder and its contents to another. Suppose i have a Main folder and in that folder there is 3 subfolders. In each subfolder there is a file. I want to move folder and all its contents to another place. For this i used the following code
if (!Directory.Exists(#"E:\Sunny\C#FolderCopy"))
{
Directory.CreateDirectory(#"E:\Sunny\C#FolderCopy");
Directory.Move(#"E:\Sunny\C#Folder\", #"E:\Sunny\C#FolderCopy\");
}
But when the control reaches to move function The error comes as
Cannot create a file when that file already exists.
How to solve this

Directory.Move already creates the folder for you. You only need to adjust to the following:
if (!Directory.Exists(#"E:\Sunny\C#FolderCopy"))
{
Directory.Move(#"E:\Sunny\C#Folder\", #"E:\Sunny\C#FolderCopy\");
}
If you want to copy the folder (as indicated by your comment) you can use FileSystem.CopyDirectory. It is located in a Visual Basic namespace but that should be of no concern at all:
using Microsoft.VisualBasic.FileIO;
if (!Directory.Exists(#"E:\Sunny\C#FolderCopy"))
{
FileSystem.CopyDirectory(#"E:\Sunny\C#Folder\", #"E:\Sunny\C#FolderCopy\");
}
Or use this method (taken from msdn):
DirectoryCopy(".", #".\temp", true);
private static void DirectoryCopy(
string sourceDirName, string destDirName, bool copySubDirs)
{
DirectoryInfo dir = new DirectoryInfo(sourceDirName);
DirectoryInfo[] dirs = dir.GetDirectories();
// If the source directory does not exist, throw an exception.
if (!dir.Exists)
{
throw new DirectoryNotFoundException(
"Source directory does not exist or could not be found: "
+ sourceDirName);
}
// If the destination directory does not exist, create it.
if (!Directory.Exists(destDirName))
{
Directory.CreateDirectory(destDirName);
}
// Get the file contents of the directory to copy.
FileInfo[] files = dir.GetFiles();
foreach (FileInfo file in files)
{
// Create the path to the new copy of the file.
string temppath = Path.Combine(destDirName, file.Name);
// Copy the file.
file.CopyTo(temppath, false);
}
// If copySubDirs is true, copy the subdirectories.
if (copySubDirs)
{
foreach (DirectoryInfo subdir in dirs)
{
// Create the subdirectory.
string temppath = Path.Combine(destDirName, subdir.Name);
// Copy the subdirectories.
DirectoryCopy(subdir.FullName, temppath, copySubDirs);
}
}
}

Recursive Files Move.
Call this method and all it do.
public static void MoveDirectory(string source, string target)
{
var sourcePath = source.TrimEnd('\\', ' ');
var targetPath = target.TrimEnd('\\', ' ');
var files = Directory.EnumerateFiles(sourcePath, "*", SearchOption.AllDirectories)
.GroupBy(s=> Path.GetDirectoryName(s));
foreach (var folder in files)
{
var targetFolder = folder.Key.Replace(sourcePath, targetPath);
Directory.CreateDirectory(targetFolder);
foreach (var file in folder)
{
var targetFile = Path.Combine(targetFolder, Path.GetFileName(file));
if (File.Exists(targetFile)) File.Delete(targetFile);
File.Move(file, targetFile);
}
}
Directory.Delete(source, true);
}

Sub folders are not copyied

I am using the function on this SO post to copy folders content into another folder, but it's not copying the sub folders and their content.
private static void DirectoryCopy(string sourceDirName, string destDirName, bool copySubDirs)
{
DirectoryInfo dir = new DirectoryInfo(sourceDirName);
DirectoryInfo[] dirs = dir.GetDirectories();
// If the source directory does not exist, throw an exception.
if (!dir.Exists)
{
throw new DirectoryNotFoundException(
"Source directory does not exist or could not be found: "
+ sourceDirName);
}
// If the destination directory does not exist, create it.
if (!Directory.Exists(destDirName))
{
Debug.Log("Directory created.." + destDirName);
Directory.CreateDirectory(destDirName);
}
// Get the file contents of the directory to copy.
FileInfo[] files = dir.GetFiles();
foreach (FileInfo file in files)
{
// Create the path to the new copy of the file.
string temppath = Path.Combine(destDirName, file.Name);
// Copy the file.
file.CopyTo(temppath, false);
}
// If copySubDirs is true, copy the subdirectories.
if (copySubDirs)
{
foreach (DirectoryInfo subdir in dirs)
{
// Create the subdirectory.
string temppath = Path.Combine(destDirName, subdir.Name);
// Copy the subdirectories.
DirectoryCopy(subdir.FullName, temppath, copySubDirs);
}
}
}
This is how it's called:
string destingationPath = startupFolder + #"\NetworkingDemoPlayerWithNetworkAwareShooting1_Data";
DirectoryCopy("NetworkingDemoPlayerWithNetworkAwareShooting1_Data", destingationPath, true);

I agree that your code looks correct
Windows system error 112 means there is not enough space on the disk

How to copy selected folders, subfolders and files from openFileDialog in c#

I have a function that is suposed to copy all folders, subfolders files selected from openFileDialog from a location to another:
I've made this function to copy all the selected paths:
public void CopiarFicheiros(string CopyTo, List<string> FilesToCopy )
{
foreach (var item in FilesToCopy)
{
string DirectoryName = Path.GetDirectoryName(item);
string Copy = Path.Combine(CopyTo, DirectoryName);
if (Directory.Exists(Copy) && DirectoryName.ToLower() != "newclient" && DirectoryName.ToLower() != "newservice")
{
Directory.CreateDirectory(Copy);
File.Copy(item, Copy + #"\" + Path.GetFileName(item), true);
}
else File.Copy(item, CopyTo + #"\" + Path.GetFileName(item), true);
}
}
The logic is full of flaws and I'm running out of time and can't seem to find a proper solution to this.
This is how I get the selected files and folders from the dialog:
private List<string> GetFiles()
{
var Files = new List<string>();
if (openFileDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
string sFileName = openFileDialog.FileName;
string[] arrAllFiles = openFileDialog.FileNames;
Files = arrAllFiles.ToList();
}
return Files;
}
Does anyone have a better solution or a clue to what I need to change to successfully do this?
Any help is highly appreciated, thank you

Don't use OpenFileDialog to choose the folder. As the name suggests, it not made for that task. You want the FolderBrowserDialog class for this task.
How to: Copy Directories:
// Copy from the current directory, include subdirectories.
DirectoryCopy(".", #".\temp", true);
private static void DirectoryCopy(string sourceDirName, string destDirName, bool copySubDirs)
{
// Get the subdirectories for the specified directory.
DirectoryInfo dir = new DirectoryInfo(sourceDirName);
if (!dir.Exists)
{
throw new DirectoryNotFoundException(
"Source directory does not exist or could not be found: "
+ sourceDirName);
}
DirectoryInfo[] dirs = dir.GetDirectories();
// If the destination directory doesn't exist, create it.
if (!Directory.Exists(destDirName))
{
Directory.CreateDirectory(destDirName);
}
// Get the files in the directory and copy them to the new location.
FileInfo[] files = dir.GetFiles();
foreach (FileInfo file in files)
{
string temppath = Path.Combine(destDirName, file.Name);
file.CopyTo(temppath, false);
}
// If copying subdirectories, copy them and their contents to new location.
if (copySubDirs)
{
foreach (DirectoryInfo subdir in dirs)
{
string temppath = Path.Combine(destDirName, subdir.Name);
DirectoryCopy(subdir.FullName, temppath, copySubDirs);
}
}
}

How Can I Copy Directory from Source to destination Even if Directory is Empty?

Follow This Structure.
A
A1
A111
A2
A3
A4
B
My Source Address is: E:\A\A2
My Destination Address is E:\B
I want to Copy A2 in B where A2 is Empty.
If I use Code
public void DirectoryCopy(string sourceDirName, string destDirName, bool copySubDirs)
{
// Get the subdirectories for the specified directory.
DirectoryInfo dir = new DirectoryInfo(sourceDirName);
string vSourceDirName = dir.Name;
if (!dir.Exists)
{
throw new DirectoryNotFoundException(
"Source directory does not exist or could not be found: "
+ sourceDirName);
}
DirectoryInfo[] dirs = dir.GetDirectories();
// If the destination directory doesn't exist, create it.
if (!Directory.Exists(destDirName))
{
Directory.CreateDirectory(destDirName);
}
// Get the files in the directory and copy them to the new location.
FileInfo[] files = dir.GetFiles();
foreach (FileInfo file in files)
{
string temppath = Path.Combine(destDirName, file.Name);
file.CopyTo(temppath, false);
}
// If copying subdirectories, copy them and their contents to new location.
if (copySubDirs)
{
foreach (DirectoryInfo subdir in dirs)
{
string temppath = Path.Combine(destDirName,vSourceDirName,subdir.Name);
DirectoryCopy(subdir.FullName, temppath, copySubDirs);
}
}
}
This Code is from msdn
How Can I Copy this Empty Folder in C#
Blockquote

You could use the function DirectoryCopy().
Using your example try DirectoryCopy (#"E:\A\A2", #"E:\B", true) and you will get E:\B\A2 created.