Create GUID of Custom Format...

Question

.NET Allows to create GUID in pre-determined format..

I want to create it with my custom format..

Is it possible?how?

Answer 1

There may be other ways, but what follows is a method I need to use a .NET Guid within PL/SQL editor (the bytes are in a different ordering):

  var bytes = guid.ToByteArray();
  var oraBytes =
    new[]
      {
        bytes[3], bytes[2], bytes[1], bytes[0],
        bytes[5], bytes[4],
        bytes[7], bytes[6],
        bytes[8], bytes[9], bytes[10], bytes[11], bytes[12], 
        bytes[13], bytes[14], bytes[15]
      };

  Guid g = new Guid(oraBytes);
  return g.ToString("N").ToUpperInvariant();

It may give you some inspiration in laying out the bytes as you need them.

Answer 2

from msdn :

public Guid(
    string g
)

g:

Type: System..::.String A String that contains a GUID in one of the following formats ('d' represents a hexadecimal digit whose case is ignored): 32 contiguous digits: dddddddddddddddddddddddddddddddd -or- Groups of 8, 4, 4, 4, and 12 digits with hyphens between the groups. The entire GUID can optionally be enclosed in matching braces or parentheses: dddddddd-dddd-dddd-dddd-dddddddddddd -or- {dddddddd-dddd-dddd-dddd-dddddddddddd} -or- (dddddddd-dddd-dddd-dddd-dddddddddddd) -or- Groups of 8, 4, and 4 digits, and a subset of eight groups of 2 digits, with each group prefixed by "0x" or "0X", and separated by commas. The entire GUID, as well as the subset, is enclosed in matching braces: {0xdddddddd, 0xdddd, 0xdddd,{0xdd,0xdd,0xdd,0xdd,0xdd,0xdd,0xdd,0xdd}} All braces, commas, and "0x" prefixes are required. All embedded spaces are ignored. All leading zeroes in a group are ignored. The digits shown in a group are the maximum number of meaningful digits that can appear in that group. You can specify from 1 to the number of digits shown for a group. The specified digits are assumed to be the low order digits of the group.