How to create a GUID in C#

GUID (Globally unique identifier) is a 128-bit integer that can be used to uniquely identify something.
You may store users or products in your database and you want somehow uniquely identify each row in the database.
A common approach is to create a autoincrementing integer, another way would be to create a GUID for your products.
The GUID method can be found in the System namespace. The GUID method System.Guid.NewGuid() initializes a new instance of the GUID class.


Response.Write(@"
System.Guid.NewGuid().ToString() = " + System.Guid.NewGuid().ToString());


Response.Write(@"
System.Guid.NewGuid().ToString(""N"") = " + System.Guid.NewGuid().ToString("N"));

Response.Write(@"
System.Guid.NewGuid().ToString(""D"") = " + System.Guid.NewGuid().ToString("D"));

Response.Write(@"
System.Guid.NewGuid().ToString(""B"") = " + System.Guid.NewGuid().ToString("B"));

Response.Write(@"
System.Guid.NewGuid().ToString(""P"") = " + System.Guid.NewGuid().ToString("P"));