How to check if a file exists in a folder?

Question

I need to check if the xml file exists in the folder.

DirectoryInfo di = new DirectoryInfo(ProcessingDirectory); FileInfo[] TXTFiles = di.GetFiles("*.xml"); if (TXTFiles.Length == 0) { log.Info("no files present") } 

This is the best way to check the file in the folder.

I need to check only the xml file is present

Answer 1

This is a way to see if any XML files exist in this folder, yes.

To check for specific files, use File.Exists(path) , which will return a boolean value indicating that the file exists in path .

Answer 2

Use the FileInfo.Exists Property:

 DirectoryInfo di = new DirectoryInfo(ProcessingDirectory); FileInfo[] TXTFiles = di.GetFiles("*.xml"); if (TXTFiles.Length == 0) { log.Info("no files present") } foreach (var fi in TXTFiles) log.Info(fi.Exists); 

or File.Exists Method:

 string curFile = @"c:\temp\test.txt"; Console.WriteLine(File.Exists(curFile) ? "File exists." : "File does not exist."); 

Answer 3

To check if a file exists or not, you can use

 System.IO.File.Exists(path) 

Answer 4

Thus, we can check the existing file in a specific folder:

  string curFile = @"c:\temp\test.txt"; //Your path Console.WriteLine(File.Exists(curFile) ? "File exists." : "File does not exist."); 

Answer 5

Since no one said how to check if the file exists AND get the current folder in which the executable file is located (Working directory) :

 if (File.Exists(Directory.GetCurrentDirectory() + @"\YourFile.txt")) { //do stuff } 

@"\YourFile.txt" not case sensitive, which means that things like @"\YourFile.txt" and @"\YourFile.txt" or @"\YourFile.txt" are interpreted the same way.

Answer 6

It can be improved like this:

 if(Directory.EnumerateFileSystemEntries(ProcessingDirectory, "*.xml").ToList<string>().Count == 0) log.Info("no files present") 

As an alternative:

 log.Info(Directory.EnumerateFileSystemEntries(ProcessingDirectory, "*.xml").ToList<string>().Count + " file(s) present"); 

Answer 7

It helped me:

 bool fileExists = (System.IO.File.Exists(filePath) ? true : false); 

Answer 8

  String^ fileName = "C:\\Cal_Connect\\" + (this->cbo_Model_Name->Text) + "\\" + (this->txt_Certificate_No->Text) + "\\CUSTOMER RECORD\\" + "Status" + ".txt"; // สร้าง file CUSTOMER RECORD if (!System::IO::File::Exists(fileName)) /* ถ้าไม่มี file จะสร้าง file ใหม่ (ถ้ามีจะไม่สร้าง file) */