Question

how would I use stream reader to read a text file from user input (which was stream writer)?

Answer 1

Answer on question #70289, Programming & Computer Science / C#

Q: How would I use stream reader to read a text file from user input (which was stream writer)?

enter 3 param. :
1: fffffffffffffffff
2: dddddddd
3: ss
Received lines from a file:
line1: 1: fffffffffffffffff
line2: 2: dddddddd
line3: 3: ss
Only entered value from line:
param1: fffffffffffffffff
param2: dddddddd
param3: ss
1

Code:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            string[] arr_str;
            // Create file
            string path = @"D:\new_file.txt";
            FileInfo MyFile = new FileInfo(path);
            FileStream fs = MyFile.Create();
            fs.Close();
            // Getting param
            Console.WriteLine("Enter 3 param. : ");
            Console.Write("1: ");
            string param1 = Console.ReadLine();
            Console.Write("2: ");
            string param2 = Console.ReadLine();
            Console.Write("3: ");
            string param3 = Console.ReadLine();
            // Write data in file
            try
            {
                using (StreamWriter sw = new StreamWriter(path, true, System.Text.Encoding.Default))
                {
                    sw.WriteLine("1: " + param1);
                    sw.WriteLine("2: " + param2);
                    sw.WriteLine("3: " + param3);
                    sw.Close();
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            // Get data from file in array
            try
            {
                string str = "";
                int ind = 0;
                using (StreamReader sr = new StreamReader(path))
                {
                    while (sr.ReadLine() != null)
                    {
                        ind++;
                    }
                    sr.Close();
                }
                arr_str = new string[ind];
                ind = 0;
                using (StreamReader sr = new StreamReader(path))
                {
                    while ((str = sr.ReadLine()) != null)
                    {
                        arr_str[ind] = str;
                        ind++;
                    }
                    sr.Close();
                }
                // Write line from file
                Console.WriteLine();
                Console.WriteLine("Received lines from a file:");
                Console.WriteLine("line1: " + arr_str[0]);
                Console.WriteLine("line2: " + arr_str[1]);
                Console.WriteLine("line3: " + arr_str[2]);
                // Delete start symbol
                for (int i = 0; i < arr_str.Length; i++)
                {
                    arr_str[i] = arr_str[i].Substring(arr_str[i].LastIndexOf(@": ") + 1);
                }
                param1 = arr_str[0];
                param2 = arr_str[1];
                param3 = arr_str[2];
                // Write only entered value
                Console.WriteLine();
                Console.WriteLine("Only entered value from line:");
                Console.WriteLine("param1: " + arr_str[0]);
                Console.WriteLine("param2: " + arr_str[1]);
                Console.WriteLine("param3: " + arr_str[2]);
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
            Console.ReadKey();
        }
    }
}

Answer provided by www.AssignmentExpert.com