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Guid.TryParse Method

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

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

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

Parameters

input
Type: System.String
The GUID to convert.
result
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 Demo(outputBlock As System.Windows.Controls.TextBlock)
      Dim originalGuid As Guid = Guid.NewGuid()
      ' Create an array of string representations of the GUID.
      Dim stringGuids() As String = { originalGuid.ToString("B"),
                                      originalGuid.ToString("D"),
                                      originalGuid.ToString("X") }

      ' Parse each string representation.
      Dim newGuid As Guid
      For Each stringGuid In stringGuids
         If Guid.TryParse(stringGuid, newGuid) Then
            outputBlock.Text += String.Format("Converted {0} to a Guid", 
                                              stringGuid) + vbCrLf
         Else
            outputBlock.Text += String.Format("Unable to convert {0} to a Guid", 
                                              stringGuid) + vbCrLf
         End If     
      Next                                      
   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


Silverlight

Supported in: 5, 4

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

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