This documentation is archived and is not being maintained.

Guid.TryParse Method

Updated: August 2011

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

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

Public Shared Function TryParse ( _
	input As String, _
	<OutAttribute> ByRef result As Guid _
) As Boolean


Type: System.String
The GUID to convert.
Type: System.Guid%
The structure that will contain the parsed value.

Return Value

Type: System.Boolean
true if the parse operation was successful; otherwise, false.

This method returns false if input is Nothing or not in a recognized format, and does not throw an exception.

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 TryParse method to convert the strings back to Guid values.

Module Example
   Public Sub Main()
      Dim originalGuid As Guid = Guid.NewGuid()
      ' Create an array of string representations of the GUID.
      Dim stringGuids() As String = { originalGuid.ToString("B"),
                                      originalGuid.ToString("X") }

      ' Parse each string representation.
      Dim newGuid As Guid
      For Each stringGuid In stringGuids
         If Guid.TryParse(stringGuid, newGuid) Then
            Console.WriteLine("Converted {0} to a Guid", stringGuid)
            Console.WriteLine("Unable to convert {0} to a Guid", 
         End If     
   End Sub
End Module
' 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.