Copying an existing file to a new file does not allow overwriting of existing files. [C #] public FileInfo CopyTo (string);
Copies an existing file to a new file, allowing overwriting of an existing file. [C #] public FileInfo CopyTo (string, bool);
[C #] copies files to the specified path, allowing overwriting of target files with the same name copy
Using System;
Using System.IO;
Class Test
{
public static void Main ()
{
string path = @ "C:/temp/mytest.txt";
String path2 = path + "Temp";
Try
{
Create the file and clean up handles.
using (FileStream fs = file.create (path)) {}
Ensure that's target does not exist.
File.delete (path2);
Copy the file.
File.Copy (path, path2);
Console.WriteLine ("{0} copied to {1}", path, path2);
Try to copy the same file again, which should succeed.
File.Copy (Path, path2, true);
Console.WriteLine ("The second Copy operation succeeded, which was expected.");
}
Catch
{
Console.WriteLine ("Double copy is not allowed, which be not expected.");
}
}
}
[C #] COPY to
Using System;
Using System.IO;
Class Test
{
public static void Main ()
{
string path = @ "C:/temp/mytest.txt";
String path2 = @ "C:/temp/mytest.txt" + "temp";
FileInfo fi1 = new FileInfo (path);
FileInfo fi2 = new FileInfo (path2);
Try
{
Create the file and clean up handles.
using (FileStream fs = Fi1. Create ()) {}
Ensure that's target does not exist.
Fi2. Delete ();
Copy the file.
Fi1. CopyTo (path2);
Console.WriteLine ("{0} is copied to {1}.", Path, path2);
Try to copy it again, which should succeed.
Fi1. CopyTo (path2, true);
Console.WriteLine ("The second Copy operation succeeded, which is expected.");
}
Catch
{
Console.WriteLine ("Double copying being not allowed, which are not expected.");
}
}
}
to perform this action ... |
See the example in this topic ... |
Create a text file. |
? Xml:namespace PREFIX = mshelp/> Write text to file |
Write to a text file. |
Writing text to a file |
Reads a text file. |
Reading text from a file |
Appends text to the file. |
Open and attach to a log file File.appendtext Fileinfo.appendtext |
Renames or moves the file. |
File.move Fileinfo.moveto |
Deletes a file. |
File.delete Fileinfo.delete |
Copy the file. |
File.Copy Fileinfo.copyto |
Gets the file size. |
Fileinfo.length |
Gets the file properties. |
File.getattributes |
Sets the file properties. |
File.setattributes |
Determine if the file exists. |
File.exists |
Read binary files. |
Read and write to the data file you just created |
Writes a binary file. |
Read and write to the data file you just created |
Retrieves the file name extension. |
Path.getextension |
Retrieves the fully qualified path to a file. |
Path.GetFullPath |
Retrieves the file name and extension in the path. |
Path.getfilename |
Change the file name extension. |
Path.changeextension |
Use of the Progress class
private void Copywithprogress (string[] filenames)
{
Display the ProgressBar control.
Pbar1.visible = true;
Set Minimum to 1 to represent the "a"-being copied.
Pbar1.minimum = 1;
Set Maximum to the total number of files to copy.
Pbar1.maximum = filenames. Length;
Set the initial value of the ProgressBar.
Pbar1.value = 1;
Set the "step" to a value of 1 to represent each file
being copied.
pbar1.step = 1;
//Loop through all Files to copy.
for (int x = 1; x <= filenames. Length; x + +)
{
//Copy the file and increment the ProgressBar if successful.
if (copyfile (filenames[x-1) = = True)
{
//Perform the increment On the ProgressBar.
pbar1.performstep ();
}
}
}