How to rename File in FileUpload Control Asp.net? - c#

I've Method that carry the uploaded Image and I need to rename it to have Fixed Name in my application But when using File.Copy Method it returns result with (File not Exist)
I don't Know how is that
I tried This File.Copy (UploadFile.FileName, newFilName);
also not responding
string filename = Path.GetFileName(FileUpload.FileName);
string extension = Path.GetExtension(FileUpload.PostedFile.FileName);
string oldFileName = FileUpload.FileName;
string newFileName = ("aboutusImage" + extension);
File.Copy(oldFileName, newFileName);
File.Delete(oldFileName);
File.Move(FileUpload.FileName, newFileName);
FileUpload.SaveAs(Server.MapPath("~/Styles/aboutusImages/") + newFileName);
var updateAboutus = (from a in dbContext.DynamicText
where a.Id == 1
select a).Single();
updateAboutus.Id = updateAboutus.Id;
updateAboutus.Name = updateAboutus.Name;
updateAboutus.Image = Path.Combine("~/Styles/aboutusImages/", "aboutusImage.jpg");
dbContext.SaveChanges();

FileUpload.FileName property represents the file name on the client machine, not on your server.
Trying to File.Copy on it have very few possibility to succeed unless you have the same file in your own server in the current folder.
From the MSDN example
protected void UploadButton_Click(object sender, EventArgs e)
{
// Specify the path on the server to
// save the uploaded file to.
String savePath = #"c:\temp\uploads\";
// Before attempting to perform operations
// on the file, verify that the FileUpload
// control contains a file.
if (FileUpload1.HasFile)
{
String fileName = FileUpload1.FileName;
// Append the name of the file to upload to the path.
savePath += fileName;
// Call the SaveAs method to save the
// uploaded file to the specified path.
// This example does not perform all
// the necessary error checking.
// If a file with the same name
// already exists in the specified path,
// the uploaded file overwrites it.
FileUpload1.SaveAs(savePath);
Of course, the following File.Delete, File.Move have the same problem and should be removed

The name you are trying to move from is just the name that was given on the client side, not the current name on the server. It is probably on some temporary location on the server.
You probably want the FileUpload.SaveAs function.

Related

File.Copy error - C# - IOException The filename, directory name, or volume label

Trying to copy all files/directories inside a directory to a new location that I create.
Users select the 'backup drive' to work with to in a combobox, then when they click the backup desktop button it simply creates a backup directory on that drive and copies all the files into that directory.
The backup directory gets created on the drive appropriately - but the first file it hits it kicks off an error.
private void backupDesktopButton_Click(object sender, EventArgs e)
{
//set the destionationLocation to the selectedDrive
string selectedDrive = backupDriveCombo.SelectedItem.ToString();
string destinationLocation = selectedDrive+"Backups-" + DateTime.Now.Month.ToString()+"-"+DateTime.Now.Year.ToString()+"\\Desktop\\";
if (!Directory.Exists(destinationLocation))
{
Directory.CreateDirectory(destinationLocation);
}
string desktopFolder = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory);
string[] fileList = Directory.GetFiles(desktopFolder);
foreach (string file in fileList)
{
//move the file
File.Copy(file, destinationLocation);
}
}
I get the error:
IOException was unhandled.
The filename, directory name, or volume label syntax is incorrect.
In the 'Autos' window (VS2010) I see the locations are set correctly:
destinationLocation = the appropriate directory (C:\Backups-8-2016\Desktop\)
file = the appropriate first file (C:\Users\myusername\Desktop\myshortcut.url)
What am I missing? I have all rights to be able to copy/paste/create things and the directory to store it gets created - just a problem moving the file.
From the documentation https://msdn.microsoft.com/en-us/library/c6cfw35a(v=vs.110).aspx
the second parameter:
The name of the destination file. This cannot be a directory or an existing file.
you need to concat the filename to the folder.
Try something like this
string[] fileList = Directory.GetFiles(desktopFolder);
foreach (string file in fileList)
{
string targetFile = Path.Combine(destinationLocation, Path.GetFileName(file));
if (File.Exists(targetFile)) File.Delete(targetFile);
File.Copy(file, targetFile);
}

C# mass File renamer

i want to create C# mass file renamer, here is my UI
i have created tes folder, inside of tes there's a file which is 1.txt.
i want to create my program to add prefix and suffix to the files, so 1.txt will become
prefix1suffix
but then i got an error
it's said file already exist though there's only one file on tes folder, which is 1.txt how do i make it work ? where's the error comes from ?
i have tried the following code
private void Rename(string prefix, string filepath, string suffix)
{
//i don't use prefix suffix yet to make sure if my function works
DirectoryInfo d = new DirectoryInfo(filepath);
FileInfo[] file = d.GetFiles();
try
{
foreach (FileInfo f in file )
{
File.Move(f.FullName,"stackoverflow");
}
}
catch (Exception e)
{
cmd.cetakGagal(e.ToString(), title);
}
cmd.cetakSukses("Rename Success", title);
}
and it returns same error as the second picture above.
the following picture is tes folder, there's nothing in tes folder except 1.txt
You are calling File.Move() with a full path for your sourceFileName and a relative path for your destFileName. The relative file path is relative to the current working directory and not to the source file path. I expect that a stackoverflow file exists in the current working directory, most likely created the first time you ran this code.
your File.Move is changing them all to StackOverflow not using the prefix and suffix. If you only have one file in the directory it shouldn't be an issue. Are you sure there is only 1 file?
public static void Move(
string sourceFileName,
string destFileName
)
Looking at this answer might be the clue as you are specifying relative path for the destination file. To obtain the current working directory, see GetCurrentDirectory
The sourceFileName and destFileName arguments are permitted to specify
relative or absolute path information. Relative path information is
interpreted as relative to the current working directory.
You should change
File.Move(f.FullName,"stackoverflow");
to
string fileName = f.Name.Replace(f.Extenstion,string.Empty);
string newFileName = string.Format("{0}{1}{2}",prefix,fileName,suffix);
string newFileWithPath = Path.Combine(f.Directory,newFileName);
if (!File.Exists(newFileWithPath))
{
File.Move(f.FullName,newFileWithPath);
}
The code above will give you that error since, after the first run through, "stackoverflow" exists as a file. Make sure that you check if the destination file exists (using File.Exists) before calling File.Move.
Since your goal is renaming, I would suggest using a test folder filled with files rather than using a piecemeal approach. See if something like this helps:
private void Rename(string prefix, string filepath, string suffix)
{
//i don't use prefix suffix yet to make sure if my function works
DirectoryInfo d = new DirectoryInfo(filepath);
FileInfo[] file = d.GetFiles();
try
{
foreach (FileInfo f in file )
{
f.MoveTo(#filepath + #"\" + prefix + f.Name.Insert(f.Name.LastIndexOf('.'),suffix));
}
}
catch (Exception e)
{
cmd.cetakGagal(e.ToString(), title);
}
cmd.cetakSukses("Rename Success", title);
}
on a side note using a listview to display the filenames and the changes before they're committed will help prevent unwanted changes.

Save a browsed file to a pre-defined folder using c#

I am working on a WinForm Application using c#. I am using a button to browse for an image file (.jpeg or .bmp). When the user browses the file and clicks ok, on the click of another "Proceed or Update" button, I want that the browsed file should be renamed and saved to a predefined directory where all image files will be saved by default, without much user interaction!
How can I achieve this? I have used openFileDialog for browsing the file, but dont know what else to do.
//detination filename
string newFileName = #"C:\NewImages\NewFileName.jpg";
// if the user presses OK instead of Cancel
if (openFileDialog1.ShowDialog() == DialogResult.OK)
{
//get the selected filename
string filename = openFileDialog1.FileName;
//copy the file to the new filename location and overwrite if it already exists
//(set last parameter to false if you don't want to overwrite)
System.IO.File.Copy(filename, newFileName, true);
}
More information on the Copy method.
First you have to implement a copy function that can make unique file names:
private void CopyWithUniqueName(string source,
string targetPath,
string targetFileName)
{
string fileName = Path.GetFileNameWithoutExtension(targetFileName);
string extension = Path.GetExtension(targetFileName);
string target = File.Exists(Path.Combine(targetPath, targetFileName);
for (int i=1; File.Exists(target); ++i)
{
target = Path.Combine(targetPath, String.Format("{0} ({1}){2}",
targetFileName, i, extension));
}
File.Copy(source, target);
}
Then you can use it, suppose defaultTargetPath is the default target file where to copy images and defaultFileName is the default file name for images:
void button1_Click(object sender, EventArgs e)
{
if (openFileDialog1.ShowDialog() != DialogResult.OK)
return;
CopyWithUniqueName(openFileDialog1.FileName,
defaultTargetPath, defaultFileName);
}
In case of multiple selection:
foreach (string fileName in openFileDialog1.FileNames)
{
CopyWithUniqueName(fileName,
defaultTargetPath, defaultFileName);
}
You'll get this (suppose defaultFileName is "Image.png"):
Source Target
A.png Image.png
B.png Image (1).png
C.png Image (2).png
You can do that with the File.Copy()-method. Just put the predefined directory and the new filename as the destination parameter.
For more info see here

How to set physical path to upload a file in Asp.Net?

I want to upload a file in a physical path such as E:\Project\Folders.
I got the below code by searching in the net.
//check to make sure a file is selected
if (FileUpload1.HasFile)
{
//create the path to save the file to
string fileName = Path.Combine(Server.MapPath("~/Files"), FileUpload1.FileName);
//save the file to our local path
FileUpload1.SaveAs(fileName);
}
But in that, I want to give my physical path as I mentioned above. How to do this?
Server.MapPath("~/Files") returns an absolute path based on a folder relative to your application. The leading ~/ tells ASP.Net to look at the root of your application.
To use a folder outside of the application:
//check to make sure a file is selected
if (FileUpload1.HasFile)
{
//create the path to save the file to
string fileName = Path.Combine(#"E:\Project\Folders", FileUpload1.FileName);
//save the file to our local path
FileUpload1.SaveAs(fileName);
}
Of course, you wouldn't hardcode the path in a production application but this should save the file using the absolute path you described.
With regards to locating the file once you have saved it (per comments):
if (FileUpload1.HasFile)
{
string fileName = Path.Combine(#"E:\Project\Folders", FileUpload1.FileName);
FileUpload1.SaveAs(fileName);
FileInfo fileToDownload = new FileInfo( filename );
if (fileToDownload.Exists){
Process.Start(fileToDownload.FullName);
}
else {
MessageBox("File Not Saved!");
return;
}
}
Well,
you can accomplish this by using the VirtualPathUtility
// Fileupload1 is ID of Upload file
if (Fileupload1.HasFile)
{
// Take one variable 'save' for store Destination folder path with file name
var save = Server.MapPath("~/Demo_Images/" + Fileupload1.FileName);
Fileupload1.SaveAs(save);
}

How to copy a file to another path?

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");

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