Can someone explain how one can handle a filesharing.

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C#

HI guys,

-So i have an application which will log its data into abc.txt file.

-This application is shared between 15-20 people which all of them need to log in
abc.txt file aswell.

- I have another application which will read data from abc.txt file to generate some
statistics about this application

I will show you some code how i am handling this filesharig thing.

in my logging :

<appender name="TestAppender" type="log4net.Appender.RollingFileAppender">
  <lockingmodel type="log4net.Appender.FileAppender+MinimalLock"/>
  <param name="File" value="c://temp//abc.txt" /> //temporary path for question.
  <param name="AppendToFile" value ="true"/>
  <encoding value="utf-8" />
  <rollingStyle value="Date" />
  <layout type="log4net.Layout.PatternLayout">
    <conversionPattern value="%date %level [%thread] %type.%method   %message%n" />
  </layout>
</appender>

in my application where i am reading the data from abc.txt to generate statistics :

string[] inputFilePaths = Directory.GetFiles("\\Path to directory where abc.txt is");


           DateTime now = DateTime.Now;
           string[] thisMonth = inputFilePaths.Where(f => IsThisMonth(now, f)).ToArray();

           using (StreamWriter outputStream = new StreamWriter("//path to a file where i want to write a motnh statistics.. abc.txt is included",false))
           {
               foreach (var inputFilePath in inputFilePaths)
               {
                   using (var inputStream = new StreamReader(inputFilePath))
                   {
                      outputStream.Write(inputStream.ReadToEnd());
                   }

               }
           }

Method i am using for the above one :

private bool IsThisMonth(DateTime now, string path)
      {
          DateTime dt;
          if (!DateTime.TryParseExact(Path.GetExtension(path),
                                      ".yyyy-MM-dd",
                                      CultureInfo.InvariantCulture,
                                      DateTimeStyles.None,
                                      out dt))
          {
              return true;
          }
          return dt.Year == now.Year && dt.Month == now.Month;
      }

now when it comes to this line :

using (var inputStream = new StreamReader(inputFilePath))

an error will appear : S

System.IO.IOException: 'The process cannot access the file '@.txt' because it is being used by another process.'

What I have tried:

Can someone explain to me how this things work and what is a solution for this.

I have found that i need to include fileshare but i do not have an idea how to do so.

Thanks for helping me out and if you have any query do not hesitate to ask me. Im still a student and need to learn these things because they can be useful in future.