C# FileInfo - FileInfo Class in C# with Examples
C# FileInfo - FileInfo Class in C# with Examples
- In C# File info class is used to deal with file and its operations and it uses Stream Writer class to write data to the file.
- It provides methods and properties that are used to create, delete and read file and it is a part of system.IO namespace.
Syntax
[SerializableAttribute] [ComVisibleAttribute(true)] public sealed class FileInfo : FileSystemInfo
File Info Constructors
| Constructor | Description |
|---|---|
| File Info (String) | It is used to initialize a new instance of the File Info class which acts as a wrapper for a file path. |
File Info Properties
| Properties | Description |
|---|---|
| Attributes | It is used to get or set the attributes for the current file or directory. |
| Creation Time | It is used to get or set the creation time of the current file or directory. |
| Directory | It is used to get an instance of the parent directory. |
| Directory Name | It is used to get a string representing the directory's full path. |
| Exists | It is used to get a value indicating whether a file exists. |
| Full Name | It is used to get the full path of the directory or file. |
| Is Read Only | It is used to get or set a value that determines if the current file is read only. |
| Last Access Time | It is used to get or set the time from current file or directory was last accessed. |
| Length | It is used to get the size in bytes of the current file. |
| Name | It is used to get the name of the file. |
File Info Methods
| Methods | Description |
|---|---|
| Append Text () | It is used to create a Stream Writer that appends text to the file represented by this instance of the File Info. |
| Copy to String () | It is used to copy an existing file to a new file. |
| Create () | It is used to create a file. |
| Create Text () | It is used to create a Stream Writer that writes a new text file. |
| Decrypt () | It is used to decrypt a file that was encrypted by the current account using the Encrypt method. |
| Delete () | It is used to permanently delete a file. |
| Encrypt () | It is used to encrypt a file so that only the account used to encrypt the file can decrypt it. |
| Get Access Control () | It is used to get a File Security object that encapsulates the access control list (ACL) entries. |
| Move To (String) | It is used to move a specified file to a new specified location. |
| Open (File mode) | It is used to open a file in the specified mode. |
| Open Read () | It is used to create a read-only File Stream. |
| Open Text () | It is used to create a Stream Reader with UTF8 encoding that reads from an existing text file. |
| Open Write () | It is used to create a write-only File Stream. |
| Refresh () | It is used to refresh the state of the object. |
| Replace (String) | It is used to replace the contents of a specified file with the file described by the current File Info object. |
| To String () | It is used to return the path as a string. |
Sample Code
using System;
using System.IO;
namespace CSharpProgram
{
class Program
{
static void Main(string[] args)
{
try
{
// Specifying file location
string loc = "F:\\abc.txt";
// Creating FileInfo instance
FileInfo file = new FileInfo(loc);
// Creating an empty file
file.Create();
Console.WriteLine("File is created Successfuly");
}catch(IOException e)
{
Console.WriteLine("Something went wrong: "+e);
}
}
}
}
Output
File is created Successfuly