How to Create a new Guid CRM 2011 C# xRM Empty Guid or Null Guid

 How to Create/Generate a New GUID using Vb.Net, C# and Vb.Script

 Suppose i have got a guid in Query String like


http://localhost:3214/Default.aspx?id=9D2B0228-4D0D-4C23-8B49-01A698857709


or

like this

// Without Dashes
http://localhost:3214/Default.aspx?id=9D2B02284D0D4C238B4901A698857709










if (Request.QueryString["id"] != null)

string Id = Request.QueryString["id"];

Guid guid = new Guid(Id);

if(guid!= Guid.Empty)
{
  //Use id here to retreive the record.
}