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private void button1_Click(object sender, EventArgs e)
{
string path = @"c:\temp\myTest.text";
if (!File.Exists(path))
{
// Create a file to write to.
using (StreamWriter sw = File.CreateText(path))
{
sw.WriteLine("hello");
sw.WriteLine("and");
sw.WriteLine("welcome");
}
}
// open the file to read form.
using (StreamReader sr = File.OpenText (path))
{
string s = "";
while ((s = sr .ReadLine ()) != null)
{
MessageBox .Show (s);
richTextBox1.Text = s;
}

}
}

private void button2_Click(object sender, EventArgs e)
{
DriveInfo [] allDrives = DriveInfo .GetDrives ();
foreach (DriveInfo d in allDrives)
{
MessageBox .Show ("=المشغل ", d.Name);
if (d .IsReady == true)
{
MessageBox .Show (" =عنوان المشغل "+ d .VolumeLabel );
richTextBox1 .Text =d .VolumeLabel ;
MessageBox .Show (" =ملف النظام "+ d .DriveFormat);
richTextBox1 .Text =d .DriveFormat ;
MessageBox.Show(" = المساحة المتاحة حاليا" + d.AvailableFreeSpace);
richTextBox1 .Text = d.TotalFreeSpace .ToString ();
MessageBox .Show (" = إجمالى حجم المشغل " + d.TotalSize );
richTextBox1 .Text = d.TotalSize .ToString ();
}
}
}
}
}