How to find the file by its partial name?

Question

How can I get the full filename?

For example:

I have a file named 171_s.jpg that is stored on the hard disc.

I need to find the file by its partial name, i.e. 171_s, and get the full name.

How can I implement this?

Answer 1

Here's an example using GetFiles():

static void Main(string[] args) {     string partialName = "171_s";     DirectoryInfo hdDirectoryInWhichToSearch = new DirectoryInfo(@"c:\");     FileInfo[] filesInDir = hdDirectoryInWhichToSearch.GetFiles("*" + partialName + "*.*");      foreach (FileInfo foundFile in filesInDir)     {         string fullName = foundFile.FullName;         Console.WriteLine(fullName);     }     } 

Answer 2

Update - Jakub answer is more efficient way to do. ie, use System.IO.Directory.GetFiles() http://msdn.microsoft.com/en-us/library/ms143316.aspx

The answer has been already posted, however for an easy understanding here is the code

string folderPath = @"C:/Temp/"; DirectoryInfo dir= new DirectoryInfo(folderPath); FileInfo[] files = dir.GetFiles("171_s*", SearchOption.TopDirectoryOnly); foreach (var item in files) {     // do something here }