i want to delete files with given extension [closed]

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I want to develop a C# application that allows users to give an extension (example: *.mp3) And then the application will remove all files that contains this extension from the hard disk.

Answer 1

This is just an example to delete files with .msi extension in C drive,

DirectoryInfo Dr = new DirectoryInfo(@"C:\");
FileInfo[] files = Dr.GetFiles("*.msi").Where(p => p.Extension == ".msi").ToArray();
foreach (FileInfo file in files)
    try
    {
        file.Attributes = FileAttributes.Normal;
        File.Delete(file.FullName);
    }
    catch 
    {
    }

To get all extensions,

public List<FileInfo> GetFiles(string path, params string[] extensions)
{
    List<FileInfo> list = new List<FileInfo>();
    foreach (string ext in extensions)
        list.AddRange(new DirectoryInfo(path).GetFiles("*" + ext).Where(p =>
              p.Extension.Equals(ext,StringComparison.CurrentCultureIgnoreCase))
              .ToArray());
    return list;
}

Answer 2

Put needed path in below code and use a foreach and File.Delete.

Use

var files = System.IO.Directory.GetFiles(path, "*.txt");

Answer 3

You can use Directory.EnumerateFiles(string path, string searchPattern, SearchOption searchOption) :

var files = Directory.EnumerateFiles(directoryPath, "*.mp3", SearchOption.AllDirectories);
foreach (var item in files)
{
   try
   {
       File.Delete(item);
   }
   catch (Exception)
   { //log exception}
}