I have DragDrop enabled in my WinForms application, I'm getting the list of items dropped and storing them in a string array called files, then in the DragDrop event I can do something like:
foreach (string file in files)
{
MessageBox.Show(file);
}
Which would return something like:
C:\Users\MyName\document.txt
Is it possible to get just the file name + extension (e.g. document.txt)? I'm not asking for a complete solution, but could you hint me in that direction?
Use Path static function calls such as:
Path.GetFileName(someFullPath);
See msdn here.
You could also use FileInfo class ..
FileInfo fileInfo = new FileInfo(fileFullPath);
var name = fileInfo.Name;
var extension = fileInfo.Extension;
Related
Im making a mp3 player in c# and im using a autoload function and it works perfectly to load and play, but the "problem" in in the list box where the .mp3 files are displayed. it shows the file directory and file extension like this:
C:\Users\Felix\Documents\songs_here\list_1\Admiral P - Engle.mp3
and insteed of that i would like it to show:
Admiral P - Engel
is this possible and how to i do it? the file load code is:
private void PopulateListBox1(string folder)
{
string[] files = Directory.GetFiles(folder);
foreach (string file in files)
listBox1.Items.Add(file);
}
PopulateListBox1(dir1);
Thanks in advance!!
You can use Path.GetFileNameWithoutExtension.
Path.GetFileNameWithoutExtension Method (String)
Returns the file name of the specified path string without the extension.
For example:
Path.GetFileNameWithoutExtension("C:\Users\...\songs_here\list_1\Admiral P - Engle.mp3");
Would return:
Admiral P - Engle
Update:
I'm assuming from your comment that you want to display the file name but still have a reference to the path to the file to pass to your player.
You'll need to create your own class to hold the mp3 file name and path like this:
public class MusicFile
{
public string Path;
public string FileName;
public override string ToString()
{
return FileName;
}
}
private void PopulateListBox1(string folder)
{
string[] files = Directory.GetFiles(folder);
foreach (string file in files)
{
var music = new MusicFile
{
Path = file,
FileName = Path.GetFileNameWithoutExtension(file)
};
listBox1.Items.Add(music);
}
}
This shows how to loop through each item and get the path, but you could also use events such as SelectedIndexChanged depending on your needs.
foreach (var item in listBox1.Items)
{
var filepath = ((MusicFile)item).Path; // Shows the full path, pass this to the player
}
Using Linq one line code
private void PopulateListBox1(string folder)
{
listBox1.DataSource =Directory.GetFiles(folder).Select(x => Path.GetFileNameWithoutExtension(x)).ToList();
}
as the file naming pattern is the same, first you might want to check file extension with a string split on dot character on every file entry, then for each file if it is mp3 extension , split an pop the last word
This should be very simple but I'm not sure what's wrong. I'm trying to delete all the files in a folder using File.Delete.
This is what I have so far:
DirectoryInfo ImageFolder = new DirectoryInfo(Program.FolderPath + #"\Images");
foreach (var File in ImageFolder.GetFiles())
{
File.Delete(File.FullName);
}
Then the ".Delete" becomes underlined and says no overload for method delete takes 1 argument.
Any help is appreciated.
What you're seeing is called Namespace Ambiguity.
In your own code or a reference DLL you probably have a method called Delete in a Class called File that doesn't support a single string parameter.
To fix the problem fully qualify File.Delete with System.IO, eg:
System.IO.File.Delete
To delete folder full of file use:
Directory.Delete(string directoryName, bool recursive);
https://msdn.microsoft.com/en-us/library/fxeahc5f(v=vs.110).aspx
Or from your code above, use:
DirectoryInfo ImageFolder = new DirectoryInfo(Program.FolderPath + #"\Images");
foreach (var fileInfo in ImageFolder.GetFiles())
{
fileInfo.Delete(); //this is FileInfo.Delete
// or
// File.Delete(fileInfo.FullName);
// dont use reserve "File" as your variable name
}
Remember, you are calling FileInfo, not File
You have to change the naming of the variable:
DirectoryInfo ImageFolder = new DirectoryInfo(Program.FolderPath + #"\Images");
foreach (var file in ImageFolder.GetFiles())
{
File.Delete(file.FullName);
}
how can i assign a to a variable, which is located at the same project, for example at my project i created a folder named App_Data and for example the file is file.dat , how can i assign the file at a variable,.. for example:
var file = App_Data/file.dat
I need it to be assigned to a variable because i will be using that variable as a parameter to a method,.. it used to be :
var file= HttpContext.Current.Request.MapPath("/App_Data/file.dat");
but now i want the path to be at the same project
if it should be absolute path it should be fine too
The MapPath should give you the absolute location of the file on disk from a relative url to the root of your website:
var absoluteFileLocation = HostingEnvironment.MapPath("~/App_Data/file.dat");
This should return something like:
c:\inetpub\wwwroot\MyWebSite\App_Data\file.dat
UPDATE:
It looks like you are trying to retrieve the contents of the file, not the location. Here's how this could be done:
var absoluteFileLocation = HostingEnvironment.MapPath("~/App_Data/file.dat");
string fileContents = System.IO.File.ReadAllText(absoluteFileLocation);
You need to read the file using one of the available methods (Streams, Readers, etc).
The easiest would be:
string fileContent = File.ReadAllText(fileNameAndPath);
where the variable fileNameAndPath contains the full path and file name to the file as described by Darin Dimitrov.
Your intention isn't exactly clear, anyway:
if you want file stats:
System.IO.File file = new System.IO.File("~/App_Data/file.dat");
if you want the file content use:
public static string readFileContent(String filename)
{
try
{
using (System.IO.StreamReader sr = new System.IO.StreamReader(filename))
return sr.ReadToEnd();
}
catch { return String.Empty; }
}
I have the following code:
string[] files = Directory.GetFiles(#"C:\Notes", "*.txt", SearchOption.TopDirectoryOnly);
foreach(string file in files)
When I check the contents of file it has the directory path and extension. Is there a way I can just get the filename out of that?
You can use the FileInfo class:
FileInfo fi = new FileInfo(file);
string name = fi.Name;
If you want just the file name - quick and simple - use Path:
string name = Path.GetFileName(file);
You can use the following method: Path.GetFileName(file)
System.IO.FileInfo f = new System.IO.FileInfo(#"C:\pagefile.sys"); // Sample file.
System.Windows.Forms.MessageBox.Show(f.FullName); // With extension.
System.Windows.Forms.MessageBox.Show(System.IO.Path.GetFileNameWithoutExtension(f.FullName)); // What you wants.
If you need to strip away the extension, path, etc. you should fill this string into a FileInfo and use its properties or use the static methods of the Path class.
What is the simplest way to get the directory that a file is in? I'm using this to set a working directory.
string filename = #"C:\MyDirectory\MyFile.bat";
In this example, I should get "C:\MyDirectory".
If you've definitely got an absolute path, use Path.GetDirectoryName(path).
If you might only get a relative name, use new FileInfo(path).Directory.FullName.
Note that Path and FileInfo are both found in the namespace System.IO.
System.IO.Path.GetDirectoryName(filename)
Path.GetDirectoryName(filename);
You can use System.IO.Path.GetDirectoryName(fileName), or turn the path into a FileInfo using FileInfo.Directory.
If you're doing other things with the path, the FileInfo class may have advantages.
You can use Path.GetDirectoryName and just pass in the filename.
MSDN Link
If you are working with a FileInfo object, then there is an easy way to extract a string representation of the directory's full path via the DirectoryName property.
Description of the FileInfo.DirectoryName Property via MSDN:
Gets a string representing the directory's full path.
Sample usage:
string filename = #"C:\MyDirectory\MyFile.bat";
FileInfo fileInfo = new FileInfo(filename);
string directoryFullPath = fileInfo.DirectoryName; // contains "C:\MyDirectory"
Link to the MSDN documentation.
You can get the current Application Path using:
string AssemblyPath = Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly().Location).ToString();
First, you have to use System.IO namespace. Then;
string filename = #"C:\MyDirectory\MyFile.bat";
string newPath = Path.GetFullPath(fileName);
or
string newPath = Path.GetFullPath(openFileDialog1.FileName));
You can use Path.GetFullPath for most of the case.
But if you want to get the path also in the case of the file name is relatively located then you can use the below generic method:
string GetPath(string filePath)
{
return Path.GetDirectoryName(Path.GetFullPath(filePath))
}
For example:
GetPath("C:\Temp\Filename.txt") return "C:\Temp\"
GetPath("Filename.txt") return current working directory like "C:\Temp\"
In my case, I needed to find the directory name of a full path (of a directory) so I simply did:
var dirName = path.Split('\\').Last();