VB.NET

Validate a ULID

See more ULID/UUID Examples

Checks to see if a ULID is valid.

Important: Chilkat's ULID functionality was introduced in v9.5.0.94.

VB.NET

Dim dt As New Chilkat.CkDateTime

' A ULID must be exactly 26 chars in length,
' and is composed of the following chars: 0123456789ABCDEFGHJKMNPQRSTVWXYZ
' Note: The ULID alphabet excludes the letters I, L, O, and U

' Here's a valid ULID
Dim ulid As String = "01GRGCH4J88RECEN4D4VK4F629"
Dim valid As Boolean = dt.UlidValidate(ulid)
Debug.WriteLine("valid: " & valid)

' Here's an invalid ULID
ulid = "71GRGxx4Jr8RECEN4D4VK4F62!"
valid = dt.UlidValidate(ulid)
Debug.WriteLine("valid: " & valid)