Formatting the result of DriveInfo's TotalSize in C#

Question

So we all know that the following code will return a long:

DriveInfo myDrive = new DriveInfo("C:\\");
long size = myDrive.TotalSize;
Console.WriteLine("Drive Size is: {0}", size);

The output will be something like this:

Drive Size is: 114203439104

So I think this means that the drive has a total size of around 114 GigaBytes.

However, I want to get this into the following format:

114.2 MB

Is there a really quick and easy way of doing this?

Thanks in advance.

Answer 1

I think that is 114 GB but hey. Anyway, I would write a helper function for this. Something like...

public string GetSize(long size)
{
   string postfix = "Bytes";
   long result = size;
   if(size >= 1073741824)//more than 1 GB
   {
      result = size / 1073741824;
      postfix = "GB";
   }
   else if(size >= 1048576)//more that 1 MB
   {
      result = size / 1048576;
      postfix = "MB";
   }
   else if(size >= 1024)//more that 1 KB
   {
      result = size / 1024;
      postfix = "KB";
   }

   return result.ToString("F1") + " " + postfix;
}

EDIT: As pointed out, I had complete forgot to deal with the size (code amended)