File handling(CREATE,READ,WRITE,APPEND,OPEN)

//CREATE AND WRITE A FILE
        string x=TextBox1.Text;
        string fileloc = @"C:\Users\abc\Documents\Visual Studio 2010\WebSites\filehandling\" + x + ".txt";
        FileStream fs ;
        fs = File.Create(fileloc);
        fs.Close();

  // WRITE IN A FILE
        StreamWriter sw = new StreamWriter(fileloc);
        sw.WriteLine(TextBox2.Text);
        sw.Close();

//APPEND A FILE
        string x = TextBox1.Text;
         string fileloc = @"C:\Users\abc\Documents\Visual Studio 2010\WebSites\filehandling\" + x + ".txt";
        StreamWriter sw = File.AppendText(fileloc);
        sw.WriteLine(TextBox2.Text);
        sw.Close();

// READ A FILE
string x = TextBox1.Text;
         string fileloc = @"C:\Users\abc\Documents\Visual Studio 2010\WebSites\filehandling\" + x + ".txt";
         StreamReader sw=new StreamReader(fileloc);
         TextBox2.Text = sw.ReadToEnd();
         sw.Close();

// OPEN A FILE AS A FILE
string x = TextBox1.Text;
        string fileloc = @"C:\Users\abc\Documents\Visual Studio 2010\WebSites\filehandling\" + x + ".txt";
        System.Diagnostics.Process.Start(fileloc);