UTILITY: Formattare la dimensione di un file in C#

C#Copia

public string FormatFileSize(long size)
{
	if(size > 1073741824) 
	{
		return String.Format("{0:#,##0.0} GB", size / 1073741824.0);
	} 
	else if(size > 1048576) 
	{
		return String.Format("{0:#,##0.0} MB", size / 1048576.0);
	} 
	else if(size > 1024) 
	{
		return String.Format("{0:#,##0.0} kB", size / 1024.0);
	} 
	else 
	{
		return String.Format("{0:#,##0} B", size);
	}
}