File Class Provides static methods for the creation, copying, deletion, moving, and opening of files, and aids in the creation of FileStream objects. : File « File Directory « VB.Net





File Class Provides static methods for the creation, copying, deletion, moving, and opening of files, and aids in the creation of FileStream objects.

 

Imports System
Imports System.IO

Public Class Test
    Public Shared Sub Main()
        Dim path As String = "c:\temp\MyTest.txt"
        If File.Exists(path) = False Then
            Using sw As StreamWriter = File.CreateText(path)
                sw.WriteLine("A")
                sw.WriteLine("B")
                sw.WriteLine("C")
                sw.Flush()
           End Using
        End If
        Using sr As StreamReader = File.OpenText(path)
            Do While sr.Peek() >= 0
                Console.WriteLine(sr.ReadLine())
            Loop
        End Using
    End Sub
End Class

   
  










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12.File Class provides static methods for the creation, copying, deletion, moving, and opening of files
13.Open path in string to read
14.Create Text file with File.CreateText
15.File.AppendAllLines (String, IEnumerable(String)) appends lines to a file, and then closes the file.
16.File.AppendAllText opens a file, appends string to the file, and then closes the file.
17.File.AppendAllText appends string to the file, creating the file if it does not already exist.
18.File.AppendText creates a StreamWriter that appends UTF-8 encoded text to an existing file.
19.File.Copy copies an file to a new file.
20.File.Create creates or overwrites a file in the specified path.
21.File.Create creates or overwrites the specified file.
22.File.CreateText creates or opens a file for writing UTF-8 encoded text.
23.File.Decrypt decrypts a file that was encrypted using the Encrypt method.
24.File.Exists determines whether the specified file exists.
25.File.GetAccessControl gets a FileSecurity object that encapsulates the access control list (ACL) entries
26.File.GetAttributes gets the FileAttributes of the file on the path.
27.File.GetCreationTime returns the creation date and time of the specified file or directory.
28.File.GetLastAccessTime returns the date and time the specified file or directory was last accessed.
29.File.GetLastWriteTime returns the date and time the specified file or directory was last written to.
30.File.Move moves a specified file to a new location, providing the option to specify a new file name.
31.File.Open opens a FileStream on the specified path with read/write access.
32.File.Open opens a FileStream on the specified path, with the specified mode and access.
33.File.Open opens a FileStream on the specified path, with mode setting and sharing option.
34.File.OpenRead opens an existing file for reading.
35.File.OpenText opens an existing UTF-8 encoded text file for reading.
36.File.OpenWrite opens an existing file or creates a new file for writing.
37.File.ReadAllLines opens a text file, reads all lines of the file, and then closes the file.
38.File.ReadAllLines opens a file, reads all lines of the file with the specified encoding, and then closes the file.
39.File.ReadLines reads the lines of a file.
40.Use Linq to search and read files
41.File.Replace replaces the contents with the contents of another file
42.File.SetLastAccessTime sets the date and time the specified file was last accessed.
43.File.SetLastWriteTime sets the date and time that the specified file was last written to.
44.File.Exists Method tests whether the specified file exists.
45.File.GetAttributes Gets the FileAttributes of the file on the path.