ถามเกี่ยวกับเรื่อง การสุ่ม สร้าง password อัติโนมัติ

' VB.NET
Public Function GetRandomPasswordUsingGUID(ByVal length as Integer) as String  
  'Get the GUID
  Dim guidResult as String = System.Guid.NewGuid().ToString()
  
  'Remove the hyphens
  guidResult = guidResult.Replace("-", String.Empty)
  
  'Make sure length is valid
  If length <= 0 OrElse length > guidResult.Length Then
    Throw New ArgumentException("Length must be between 1 and " & guidResult.Length)
  End If
  
  'Return the first length bytes
  Return guidResult.Substring(0, length)
End Function


// C#
public string GetRandomPasswordUsingGUID(int length)
{
  // Get the GUID
  string guidResult = System.Guid.NewGuid().ToString();
  
  // Remove the hyphens
  guidResult = guidResult.Replace("-", string.Empty);
  
  // Make sure length is valid
  if (length <= 0 || length > guidResult.Length)
    throw new ArgumentException("Length must be between 1 and " + guidResult.Length);
  
  // Return the first length bytes
  return guidResult.Substring(0, length);
}