I have some Images in a folder. The images can be easily transferred from the First to the Second folder. So far, everything seems to be ok, but how to pass an image from the First directory to the Second directory which is identical to the image that already exists in the Second folder? In simple terms: How to update or overwrite the files in this Second folder? Many thanks in advance for your help!
string pathName = #"C:\Users\Desktop\Images\Second\";
foreach (var file in Directory.EnumerateFiles(#"C:\Users\Desktop\Images\"))
{
if (!Directory.Exists(pathName))
{
Directory.CreateDirectory(pathName);
}
string destFile = Path.Combine(pathName, Path.GetFileName(file));
if (!File.Exists(destFile))
{
File.Move(file, destFile);
}
}
UPDATE:
I forgot, that method Move has third parameter bool overwrite. You can use it
File.Move(file, destFile, true);
You will find more info here
You can use File.OpenRead, File.OpenWrite and stream.CopyTo methods for this task
if (!File.Exists(destFile))
{
File.Move(file, destFile);
}
else
{
using (var sourceStream = File.OpenRead(file))
using (var desStream = File.OpenWrite(destFile))
sourceStream.CopyTo(desStream);
}
The move method can have a third parameter a boolean to override
Move(String, String, Boolean)
Moves a specified file to a new location, providing the options to specify a new file name and to overwrite the destination file if it already exists.
Check https://learn.microsoft.com/en-us/dotnet/api/system.io.file.move?view=net-5.0
Or You can use File.replace() if the File exist in destination to save a backup of the deleted file.
public static void Replace (string sourceFileName, string destinationFileName, string? destinationBackupFileName);
it will be like this
string pathName = #"C:\Users\Desktop\Images\Second\";
foreach (var file in Directory.EnumerateFiles(#"C:\Users\Desktop\Images\"))
{
if (!Directory.Exists(pathName))
{
Directory.CreateDirectory(pathName);
}
string destFile = Path.Combine(pathName, Path.GetFileName(file));
string backupFile = 'Some place to backup the deleted image'.
if (!File.Exists(destFile))
{
File.Move(file, destFile);
}
else
{
File.Replace(file, destFile, backupFile);
}
}
you can check https://learn.microsoft.com/en-us/dotnet/api/system.io.file.replace?view=net-5.0 for documentations
Related
What is the best way to move directory with all its contents(files or folders) in C#?
I used the following codes, but it throws The Directory is not empty exception :
Microsoft.VisualBasic.FileIO.FileSystem.MoveDirectory(sourceFullName, destFullName, true);
Directory.Move(sourceFullName, destFullName); //Added in edit
MSDN example enough for this.
string sourceDirectory = #"C:\source";
string destinationDirectory = #"C:\destination";
try
{
Directory.Move(sourceDirectory, destinationDirectory);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
Even, as MSDN says, you will get an IOException if:
An attempt was made to move a directory to a different volume.
destDirName already exists.
The sourceDirName and destDirName parameters refer to the same file
or directory.
So, verify whether any of above is causing for error.
Also, you might consider deleting existing directory before moving. This would avoid raising error if error is due to 2nd option mention above.
if(Directory.Exists(destinationDirectory) == false)
{
Directory.Move(sourceDirectory, destinationDirectory);
}
else
{
//Delete existing directory
//But make sure you really want to delete.
}
You can try this
DirectoryInfo dir = new DirectoryInfo(source);
dir.MoveTo(newLocation);
Use System.Io.
string source = #"c:\new";
string dest = #"c:\newnew";
Directory.Move(source, dest);
here is a example ...you should move all files before move directory
string fileName = "test.txt";
string sourcePath = #"C:\Users\Public\TestFolder";
string targetPath = #"C:\Users\Public\TestFolder\SubDir";
// Use Path class to manipulate file and directory paths.
string sourceFile = System.IO.Path.Combine(sourcePath, fileName);
string destFile = System.IO.Path.Combine(targetPath, fileName);
// To copy a folder's contents to a new location:
// Create a new target folder, if necessary.
if (!System.IO.Directory.Exists(targetPath))
{
System.IO.Directory.CreateDirectory(targetPath);
}
// To copy a file to another location and
// overwrite the destination file if it already exists.
System.IO.File.Copy(sourceFile, destFile, true);
// To copy all the files in one directory to another directory.
// Get the files in the source folder. (To recursively iterate through
// all subfolders under the current directory, see
// "How to: Iterate Through a Directory Tree.")
// Note: Check for target path was performed previously
// in this code example.
if (System.IO.Directory.Exists(sourcePath))
{
string[] files = System.IO.Directory.GetFiles(sourcePath);
// Copy the files and overwrite destination files if they already exist.
foreach (string s in files)
{
// Use static Path methods to extract only the file name from the path.
fileName = System.IO.Path.GetFileName(s);
destFile = System.IO.Path.Combine(targetPath, fileName);
System.IO.File.Copy(s, destFile, true);
}
}
else
{
Console.WriteLine("Source path does not exist!");
}
Use this would help you:
string sourceDir = #"c:\test";
string destinationDir = #"c:\test1";
try
{
// Ensure the source directory exists
if (Directory.Exists(sourceDir) == true )
{
// Ensure the destination directory doesn't already exist
if (Directory.Exists(destinationDir) == false)
{
// Perform the move
Directory.Move(sourceDir, destinationDir);
}
else
{
// Could provide the user the option to delete the existing directory
// before moving the source directory
}
}
else
{
// Do something about the source directory not existing
}
}
catch (Exception)
{
// TODO: Handle the exception that has been thrown
}
What about the following solution, it works well :
public static void DeleteDirectory(string targetDir)
{
string[] files = Directory.GetFiles(targetDir, "*", SearchOption.AllDirectories);
foreach (string file in files)
File.Delete(file);
new Microsoft.VisualBasic.Devices.Computer().FileSystem.DeleteDirectory(targetDir, DeleteDirectoryOption.DeleteAllContents);
}
public static void MoveDirectory(string source, string dest)
{
new Microsoft.VisualBasic.Devices.Computer().FileSystem.CopyDirectory(source, dest, true);
DeleteDirectory(source);
}
I have researched all the articles here and on Google. While some seem to be what I need I continue to run into this problem. I could certainly use some assistance getting this resolved once and for all.
I want to copy a Customize.xml file from the server and have it replace the current file in all user profiles. I would prefer to make this so that it will run for anyone that logs on each time. Any assistance figuring this out and getting it to work would be greatly appreciated.
using System;
using System.Configuration;
using System.IO;
namespace copy_delete_move_files
{
public class SimpleFileCopy
{
public static object Logger { get; private set; }
static void Main()
{
string fileName = "Customize.xml";
string sourcePath = #"\\serverpath\c$\TestFolder";
string targetPath = #"\\desktoppath\c$\%USERPROFILE%\APPDATA\Roaming\Litera\Customize";
// Use Path class to manipulate file and directory paths.
string sourceFile = Path.Combine(sourcePath, fileName);
string destFile = Path.Combine(targetPath, fileName);
// To copy a folder's contents to a new location:
// Create a new target folder, if necessary.
if (!Directory.Exists(targetPath))
{
Directory.CreateDirectory(targetPath);
}
// To copy a file to another location and
// overwrite the destination file if it already exists.
File.Copy(sourceFile, destFile, true);
// To copy all the files in one directory to another directory.
// Get the files in the source folder.
// Note: Check for target path was performed previously
// in this code example.
if (Directory.Exists(sourcePath))
{
string[] files = Directory.GetFiles(sourcePath);
// Copy the files and overwrite destination files if they already exist.
foreach (string s in files)
{
// Use static Path methods to extract only the file name from the path.
fileName = Path.GetFileName(s);
destFile = Path.Combine(targetPath, fileName);
File.Copy(s, destFile, true);
}
}
else
{
Console.WriteLine("Source path does not exist!");
}
// Keep console window open in debug mode.
Console.WriteLine("Press any key to exit.");
Console.ReadKey();
}
}
}
I have a problem with a zip file replacing an existing file. I have looked at other examples on here and I still can't seem to figure it out...
I have a loop that writes some stats of the file extracted into a textbox. I think that its this line:
if (!System.IO.File.Exists(fileUnzipFullName))
My Code:
public void UnzipFileNew()
{
richTextBox1.AppendText("\r\n" + "EXTRACTING!");
String rootpath = Environment.CurrentDirectory;
//This stores the path where the file should be unzipped to,
//including any subfolders that the file was originally in.
string fileUnzipFullPath;
//This is the full name of the destination file including
//the path
string fileUnzipFullName;
//Opens the zip file up to be read
using (ZipArchive archive = ZipFile.OpenRead(#"update.zip"))
{
//Loops through each file in the zip file
foreach (ZipArchiveEntry file in archive.Entries)
{
//Outputs file information to the Textbox
richTextBox1.AppendText("\r\n");
richTextBox1.AppendText("File Name: "+ file.Name);
richTextBox1.AppendText("\r\n");
richTextBox1.AppendText("File Size: bytes "+ file.Length);
richTextBox1.AppendText("\r\n");
richTextBox1.AppendText("Compression Ratio: "+ ((double)file.CompressedLength / file.Length).ToString("0.0%"));
richTextBox1.AppendText("\r\n");
//Identifies the destination file name and path
fileUnzipFullName = Path.Combine(rootpath, file.FullName); //fileUnzipFullName = Path.Combine(#"Example\", file.FullName);
//Extracts
if (!System.IO.File.Exists(fileUnzipFullName))
{
fileUnzipFullPath = Path.GetDirectoryName(fileUnzipFullName);
//Creates the directory if it doesn't exist
Directory.CreateDirectory(fileUnzipFullPath);
//Extracts the file to (potentially new) path
file.ExtractToFile(fileUnzipFullName);
}
}
}
}
if (!System.IO.File.Exists(fileUnzipFullName)) will indeed prevent you even trying to extract the file if it already exists. So you will need to remove this or change it as per your use case.
Additionally, the ExtractToFile method will throw an IOException if the file already exists as you are using it. Fortunately, MSDN reveals that there is an overload with a boolean flag for overwriting:
public static void ExtractToFile(
this ZipArchiveEntry source,
string destinationFileName,
bool overwrite
)
So instead of
file.ExtractToFile(fileUnzipFullName);
use
file.ExtractToFile(fileUnzipFullName, true);
Using your code, this will indiscriminately overwrite all files with the ones extracted from the zip:
//Extracts
//if (!System.IO.File.Exists(fileUnzipFullName))
//{
fileUnzipFullPath = Path.GetDirectoryName(fileUnzipFullName);
//Creates the directory if it doesn't exist
Directory.CreateDirectory(fileUnzipFullPath);
//Extracts the file to (potentially new) path
file.ExtractToFile(fileUnzipFullName, true);
//}
What is the best way to move directory with all its contents(files or folders) in C#?
I used the following codes, but it throws The Directory is not empty exception :
Microsoft.VisualBasic.FileIO.FileSystem.MoveDirectory(sourceFullName, destFullName, true);
Directory.Move(sourceFullName, destFullName); //Added in edit
MSDN example enough for this.
string sourceDirectory = #"C:\source";
string destinationDirectory = #"C:\destination";
try
{
Directory.Move(sourceDirectory, destinationDirectory);
}
catch (Exception e)
{
Console.WriteLine(e.Message);
}
Even, as MSDN says, you will get an IOException if:
An attempt was made to move a directory to a different volume.
destDirName already exists.
The sourceDirName and destDirName parameters refer to the same file
or directory.
So, verify whether any of above is causing for error.
Also, you might consider deleting existing directory before moving. This would avoid raising error if error is due to 2nd option mention above.
if(Directory.Exists(destinationDirectory) == false)
{
Directory.Move(sourceDirectory, destinationDirectory);
}
else
{
//Delete existing directory
//But make sure you really want to delete.
}
You can try this
DirectoryInfo dir = new DirectoryInfo(source);
dir.MoveTo(newLocation);
Use System.Io.
string source = #"c:\new";
string dest = #"c:\newnew";
Directory.Move(source, dest);
here is a example ...you should move all files before move directory
string fileName = "test.txt";
string sourcePath = #"C:\Users\Public\TestFolder";
string targetPath = #"C:\Users\Public\TestFolder\SubDir";
// Use Path class to manipulate file and directory paths.
string sourceFile = System.IO.Path.Combine(sourcePath, fileName);
string destFile = System.IO.Path.Combine(targetPath, fileName);
// To copy a folder's contents to a new location:
// Create a new target folder, if necessary.
if (!System.IO.Directory.Exists(targetPath))
{
System.IO.Directory.CreateDirectory(targetPath);
}
// To copy a file to another location and
// overwrite the destination file if it already exists.
System.IO.File.Copy(sourceFile, destFile, true);
// To copy all the files in one directory to another directory.
// Get the files in the source folder. (To recursively iterate through
// all subfolders under the current directory, see
// "How to: Iterate Through a Directory Tree.")
// Note: Check for target path was performed previously
// in this code example.
if (System.IO.Directory.Exists(sourcePath))
{
string[] files = System.IO.Directory.GetFiles(sourcePath);
// Copy the files and overwrite destination files if they already exist.
foreach (string s in files)
{
// Use static Path methods to extract only the file name from the path.
fileName = System.IO.Path.GetFileName(s);
destFile = System.IO.Path.Combine(targetPath, fileName);
System.IO.File.Copy(s, destFile, true);
}
}
else
{
Console.WriteLine("Source path does not exist!");
}
Use this would help you:
string sourceDir = #"c:\test";
string destinationDir = #"c:\test1";
try
{
// Ensure the source directory exists
if (Directory.Exists(sourceDir) == true )
{
// Ensure the destination directory doesn't already exist
if (Directory.Exists(destinationDir) == false)
{
// Perform the move
Directory.Move(sourceDir, destinationDir);
}
else
{
// Could provide the user the option to delete the existing directory
// before moving the source directory
}
}
else
{
// Do something about the source directory not existing
}
}
catch (Exception)
{
// TODO: Handle the exception that has been thrown
}
What about the following solution, it works well :
public static void DeleteDirectory(string targetDir)
{
string[] files = Directory.GetFiles(targetDir, "*", SearchOption.AllDirectories);
foreach (string file in files)
File.Delete(file);
new Microsoft.VisualBasic.Devices.Computer().FileSystem.DeleteDirectory(targetDir, DeleteDirectoryOption.DeleteAllContents);
}
public static void MoveDirectory(string source, string dest)
{
new Microsoft.VisualBasic.Devices.Computer().FileSystem.CopyDirectory(source, dest, true);
DeleteDirectory(source);
}
I need to copy a file to another path, leaving the original where it is.
I also want to be able to rename the file.
Will FileInfo's CopyTo method work?
Have a look at File.Copy()
Using File.Copy you can specify the new file name as part of the destination string.
So something like
File.Copy(#"c:\test.txt", #"c:\test\foo.txt");
See also How to: Copy, Delete, and Move Files and Folders (C# Programming Guide)
Yes. It will work: FileInfo.CopyTo Method
Use this method to allow or prevent overwriting of an existing file. Use the CopyTo method to prevent overwriting of an existing file by default.
All other responses are correct, but since you asked for FileInfo, here's a sample:
FileInfo fi = new FileInfo(#"c:\yourfile.ext");
fi.CopyTo(#"d:\anotherfile.ext", true); // existing file will be overwritten
I tried to copy an xml file from one location to another. Here is my code:
public void SaveStockInfoToAnotherFile()
{
string sourcePath = #"C:\inetpub\wwwroot";
string destinationPath = #"G:\ProjectBO\ForFutureAnalysis";
string sourceFileName = "startingStock.xml";
string destinationFileName = DateTime.Now.ToString("yyyyMMddhhmmss") + ".xml"; // Don't mind this. I did this because I needed to name the copied files with respect to time.
string sourceFile = System.IO.Path.Combine(sourcePath, sourceFileName);
string destinationFile = System.IO.Path.Combine(destinationPath, destinationFileName);
if (!System.IO.Directory.Exists(destinationPath))
{
System.IO.Directory.CreateDirectory(destinationPath);
}
System.IO.File.Copy(sourceFile, destinationFile, true);
}
Then I called this function inside a timer_elapsed function of certain interval which I think you don't need to see. It worked. Hope this helps.
You could also use File.Copy to copy and File.Move to rename it afterwords.
// Copy the file (specify true or false to overwrite or not overwrite the destination file if it exists.
File.Copy(mySourceFileAndPath, myDestinationFileAndPath, [true | false]);
// EDIT: as "astander" notes correctly, this step is not necessary, as File.Copy can rename already...
// However, this code could be adapted to rename the original file after copying
// Rename the file if the destination file doesn't exist. Throw exception otherwise
//if (!File.Exists(myRenamedDestinationFileAndPath))
// File.Move(myDestinationFileAndPath, myRenamedDestinationFileAndPath);
//else
// throw new IOException("Failed to rename file after copying, because destination file exists!");
EDIT
Commented out the "rename" code, because File.Copy can already copy and rename in one step, as astander noted correctly in the comments.
However, the rename code could be adapted if the OP desired to rename the source file after it has been copied to a new location.
string directoryPath = Path.GetDirectoryName(destinationFileName);
// If directory doesn't exist create one
if (!Directory.Exists(directoryPath))
{
DirectoryInfo di = Directory.CreateDirectory(directoryPath);
}
File.Copy(sourceFileName, destinationFileName);
File::Copy will copy the file to the destination folder and File::Move can both move and rename a file.
This is what I did to move a test file from the downloads to the desktop.
I hope its useful.
private void button1_Click(object sender, EventArgs e)//Copy files to the desktop
{
string sourcePath = #"C:\Users\UsreName\Downloads";
string targetPath = Environment.GetFolderPath(Environment.SpecialFolder.Desktop);
string[] shortcuts = {
"FileCopyTest.txt"};
try
{
listbox1.Items.Add("Starting: Copy shortcuts to dektop.");
for (int i = 0; i < shortcuts.Length; i++)
{
if (shortcuts[i]!= null)
{
File.Copy(Path.Combine(sourcePath, shortcuts[i]), Path.Combine(targetPath, shortcuts[i]), true);
listbox1.Items.Add(shortcuts[i] + " was moved to desktop!");
}
else
{
listbox1.Items.Add("Shortcut " + shortcuts[i] + " Not found!");
}
}
}
catch (Exception ex)
{
listbox1.Items.Add("Unable to Copy file. Error : " + ex);
}
}
TO Copy The Folder I Use Two Text Box To Know The Place Of Folder And Anther Text Box To Know What The Folder To Copy It And This Is The Code
MessageBox.Show("The File is Create in The Place Of The Programe If you Don't Write The Place Of copy And You write Only Name Of Folder");// It Is To Help The User TO Know
if (Fromtb.Text=="")
{
MessageBox.Show("Ples You Should Write All Text Box");
Fromtb.Select();
return;
}
else if (Nametb.Text == "")
{
MessageBox.Show("Ples You Should Write The Third Text Box");
Nametb.Select();
return;
}
else if (Totb.Text == "")
{
MessageBox.Show("Ples You Should Write The Second Text Box");
Totb.Select();
return;
}
string fileName = Nametb.Text;
string sourcePath = #"" + Fromtb.Text;
string targetPath = #"" + Totb.Text;
string sourceFile = System.IO.Path.Combine(sourcePath, fileName);
string destFile = System.IO.Path.Combine(targetPath, fileName);
if (!System.IO.Directory.Exists(targetPath))
{
System.IO.Directory.CreateDirectory(targetPath);
//when The User Write The New Folder It Will Create
MessageBox.Show("The File is Create in "+" "+Totb.Text);
}
System.IO.File.Copy(sourceFile, destFile, true);
if (System.IO.Directory.Exists(sourcePath))
{
string[] files = System.IO.Directory.GetFiles(sourcePath);
foreach (string s in files)
{
fileName = System.IO.Path.GetFileName(s);
destFile = System.IO.Path.Combine(targetPath, fileName);
System.IO.File.Copy(s, destFile, true);
}
MessageBox.Show("The File is copy To " + Totb.Text);
}
Old Question,but I would like to add complete Console Application example, considering you have files and proper permissions for the given folder, here is the code
class Program
{
static void Main(string[] args)
{
//path of file
string pathToOriginalFile = #"E:\C-sharp-IO\test.txt";
//duplicate file path
string PathForDuplicateFile = #"E:\C-sharp-IO\testDuplicate.txt";
//provide source and destination file paths
File.Copy(pathToOriginalFile, PathForDuplicateFile);
Console.ReadKey();
}
}
Source: File I/O in C# (Read, Write, Delete, Copy file using C#)
File.Move(#"c:\filename", #"c:\filenamet\filename.txt");