Read and Write to Text Files in c#

There are many ways to read and write to text files. We will see one option here. Be sure to add using System.IO namespace.

This is a function to write to a Text File.

private bool writeToTextFile()

    {

        bool success = true;

        //path and filename

        string fileName = Server.MapPath("abc.txt");

        //data to be written in the file

        //\r\n is to insert a new line

        string data = "This is the first line \r\n" +

                      "This is the second line \r\n\r\n" +

                      "This is the third line";

        try

        {

          File.WriteAllText(fileName, data);//write the data to the text file

        }

        catch (Exception e)

        {

            Response.Output.Write(e.Message);

            success = false;

        }

        return success;

    }

In the above function,\r\n is used to insert a new line.

This function is used to read from text file.

 

      private bool readFromTextFile()

    {

        bool success = true;

        //path and filename

        string fileName = Server.MapPath("abc.txt");

        try

        {

            string data = File.ReadAllText(fileName);//read from text file

            data = data.Replace("\r\n", "");//\r\n is replaced by

            Response.Output.Write(data);           

        }

        catch (Exception e)

        {

            Response.Output.Write(e.Message);

            success = false;

        }

        return success;

    }