SPListItem.UniqueId property

Gets the GUID that uniquely identifies the item for the internal database.

Namespace:  Microsoft.SharePoint
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)

'Declaration
Public ReadOnly Property UniqueId As Guid
    Get
'Usage
Dim instance As SPListItem
Dim value As Guid

value = instance.UniqueId

public Guid UniqueId { get; }

Type: System.Guid
A System.Guid object that identifies the item.

SPListItem class

SPListItem members

Microsoft.SharePoint namespace