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c#multithreadingfile-iothread-safetystreamwriter

How to write lines to a text file thread safe - multi threading

I just tried this and it failed

public MainWindow()
{
    InitializeComponent();
}

private void Button_Click_1(object sender, RoutedEventArgs e)
{

    Task.Factory.StartNew(() =>
    {
        writeFile();
    });

}

TextWriter myWriter = new StreamWriter("deneme.txt");

void writeFile()
{
    for (int k = 0; k < 10000; k++)
    {
        int irTempPara = k;
        Task.Factory.StartNew(() =>
        {
            writeFileForReal(irTempPara);
        });
        System.Threading.Thread.Sleep(10);
    }
}

void writeFileForReal(int srParameter)
{
    for (int k = 0; k < 999999999; k++)
    {
        myWriter.WriteLineAsync(srParameter + "_" + k);
    }
}

It is c# 4.5 WPF application

So what method would you suggest for writing lines to a text file most effeciently and multi threading

Solution

  • How about this?

    TextWriter.Synchronized(myWriter).WriteLine("Hello World!!!");