I need to search file in directory using partial name.
Ex:
Directory : c:\Path Filename : Error_005296-895632-12563.xml Partial file name: 005296-895632-12563 I have tried below.
Directory.GetFiles("c:\Path", "*005296-895632-12563*.xml", SearchOption.AllDirectories). But it didn't work
Sample file names are :
Error_005296-895632-12563.xml 005296-895632-12563_Response.xml Duplicate_005296-895632-12563_Response.xml You can create a extension method and pass the array of partial names which you want to find.
Call the extension method like this
DirectoryInfo dir = new DirectoryInfo(@"c:\demo"); FileInfo[] files = dir.GetFilesBypartialName("Anc_def_", "ABC_123", "12_qweqweqw_123").ToArray(); below is the extension method
public static class DirectoryFindFile { public static IEnumerable<FileInfo> GetFilesBypartialName(this DirectoryInfo dirInfo, params string[] partialFilenames) { if (partialFilenames == null) throw new ArgumentNullException("partialFilenames"); var lstpartialFilenames = new HashSet<string>(partialFilenames, StringComparer.OrdinalIgnoreCase); return dirInfo.EnumerateFiles() .Where(f => lstpartialFilenames.Contains(f.Name)); } public static IEnumerable<FileInfo> GetFilesBypartialFilenamesAllDir(this DirectoryInfo dirInfo, params string[] partialFilenames) { if (partialFilenames == null) throw new ArgumentNullException("partialFilenames"); var lstpartialFilenames = new HashSet<string>(partialFilenames, StringComparer.OrdinalIgnoreCase); return dirInfo.EnumerateFiles("*.*", SearchOption.AllDirectories) .Where(f => lstpartialFilenames.Contains(f.Name)); } } Heres a extension function I've used to search directories
public static IEnumerable<string> GetFiles(string path, string searchPatternExpression = "", SearchOption searchOption = SearchOption.AllDirectories) { Regex reSearchPattern = new Regex(searchPatternExpression); return Directory.EnumerateFiles(path, "*", searchOption).Where(file => reSearchPattern.IsMatch(System.IO.Path.GetExtension(file))); } 
string.Contains