Display all information of a text file

Get all information from a file

This program will print some of the information regarding file. 

• Here fi is object of FileInfo class

• We are calling a constructor with a string filepath.

    protected void Page_Load(object sender, EventArgs e)

    {

        System.IO.FileInfo fi = new FileInfo("D:\\jello.txt");

        Response.Write("Filename:-"+fi.FullName);

        Response.Write("Creation Time:-"+fi.CreationTime);

        Response.Write("File type:-" + fi.GetType);

        Response.Write("Last write time:-" + fi.LastWriteTime);

        Response.Write("File Size:-"+fi.Length);

  

    }

Rename a file in ASP.Net

Rename a file in ASP.Net using C# 

Unfortunately C# does not provide any method for file renaming. The below trick you can use to rename a file.Use the namespace to file handling purpose.

         Using System.io;

•  Just copy the file with other filename
•  Then delete the old file

    protected void Page_Load(object sender, EventArgs e)

    {

        string oldf = "D:\\hello.txt";

        string newf = "D:\\jello.txt";

        File.Copy(oldf, newf);

        File.Delete(oldf);

    }

Move file using ASP.Net

Move a file from one location to another

This program will move a file from one location to another.

• Move() method of file class is used for file movement parpuse.
• It takes two arguments, source and destination.
• The File class is located within System.io namespace
• To move entire directory we can use Move() method of Directory class.

    protected void Page_Load(object sender, EventArgs e)

    {

        string sourceFile = @"C:\Users\Public\public\test.txt";

        string destinationFile = @"C:\Users\Public\private\test.txt";

        // To move a file or folder to a new location:

        System.IO.File.Move(sourceFile, destinationFile);

        // To move an entire directory. To programmatically modify or combine

        // path strings, use the System.IO.Path class.

        System.IO.Directory.Move(@"C:\Users\Public\public\test\", @"C:\Users\Public\private");

    }

Deleting directory using ASP.Net

Deleting a directory using ASP.Net

This program will delete a directory from your system’s hard disk. Include the following namespace to write the program. It will delete all files and subdirectory also.

Using System.IO;

• Within if condition it is checking wheather directory is exhists or not.
• Within try block it will delete the directory

protected void Page_Load(object sender, EventArgs e)

    {

        if (System.IO.Directory.Exists("D:\\abc"))

        {

            try

            {

                System.IO.Directory.Delete("D:\\abc", true);

            }

            catch (System.IO.IOException ex)

            {

                Response.Write(ex.Message);

            }

        }

Delete a file from directory using ASP.Net

Delete a file from directory

This program will delete a file from directory.  Add following namespace

Using system.io;

• At first within if condition it is checking wheather file is exhists or not.
• Delete method of File class is used for file delete parpuse

            if (File.Exists(fname))

            {

                File.Delete(fname);

                this.Label1.Text = "<font color=green>" + "File deleted" + "</font>";

                show();

            }

            else

            {

                this.Label1.Text = "<font color=green>" + "File not exhists" + "</font>";

            }

Display files in a directory using ASP.Net.

Display files in a directory using ASP.Net.

This program will print all the files within a specific directory.

•  file is a string array that content all files.
•  foreach loop will copy each element within fname string.
• Within for loop each and every file will print.

  

 protected void Page_Load(object sender, EventArgs e)

    {

        string[] file = Directory.GetFiles("D://user//");

        foreach (string fname in file)

        {

           Response.write (fname);

        }

 

    }

Read text File using ASP.Net

Reading of Text file using ASP.Net

The program will read a text file and output will display in screen. I have used StreamReader class to read text file. And rd is the object of StreamReader class.

• StreamReader class is used to read the content of file.
• ReadToEnd() method of StreamReader class is used to read file upto last character.

   protected void Page_Load(object sender, EventArgs e)

    {

        StreamReader rd = new StreamReader("D:\\hello.txt");

        string val = rd.ReadToEnd();

        Response.Write(val);

   }

Create a text file using ASP.Net

Create a text file using ASP.Net C#

 

Here I am going to discuss about creation of text file in ASP.Net. I have used StreamWrite class to create the text file. This program will create a hello.txt file in your system’s D drive. You can put your path if you wish. Str is the object of StreamWriter class.

•    strin is  a object of string class
•    Write() method of StreamWrite  class is used for writing a string object within a file.
•     Close() method of StreamWriter class is used for closing the file.

protected void Page_Load(object sender, EventArgs e)

    {

        string strin = "Hello world";

        StreamWriter str = new StreamWriter("D:\\hello.txt",true);

        str.Write(strin);

        str.Close();

       

    }