This documentation is archived and is not being maintained.

Guid.Parse Method

Updated: August 2011

Converts the string representation of a GUID to the equivalent Guid structure.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

public static Guid Parse(
	string input


Type: System.String
The GUID to convert.

Return Value

Type: System.Guid
A structure that contains the value that was parsed.


input is null.


input is not in a recognized format.

Use the TryParse method to catch any unsuccessful parse operations.

The following example creates a new GUID, converts it to three separate string representations by calling the ToString method with the "B", "D", and "X" format specifiers, and then calls the Parse method to convert the strings back to Guid values.

using System;

public class Example
   public static void Main()
      Guid originalGuid = Guid.NewGuid();
      // Create an array of string representations of the GUID.
      string[] stringGuids = { originalGuid.ToString("B"),
                               originalGuid.ToString("X") };

      // Parse each string representation.
      foreach (var stringGuid in stringGuids) {
         try {     
            Guid newGuid = Guid.Parse(stringGuid);
            Console.WriteLine("Converted {0} to a Guid", stringGuid);
         catch (ArgumentNullException) {
            Console.WriteLine("The string to be parsed is null.");   
         catch (FormatException) {
            Console.WriteLine("Bad format: {0}", stringGuid);
// The example displays the following output:
//    Converted {81a130d2-502f-4cf1-a376-63edeb000e9f} to a Guid
//    Converted 81a130d2-502f-4cf1-a376-63edeb000e9f to a Guid
//    Converted {0x81a130d2,0x502f,0x4cf1,{0xa3,0x76,0x63,0xed,0xeb,0x00,0x0e,0x9f}} to a Guid

.NET Framework

Supported in: 4

.NET Framework Client Profile

Supported in: 4

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.




August 2011

Replaced the example.

Information enhancement.

July 2011

Removed Exception from the list of exceptions.

Content bug fix.