find max numeric value with LINQ

[John]

Here is my vb code, it keeps returning 999 even though my max value is 1264?

Dim dbInv As New DataCustomerDat aContext
Dim inv = (From s In dbInv.ARIentrie s _
Where s.OwnerID = hfOwnerID.Value _
And s.Disabled = False _
And Linq.SqlClient. SqlMethods.Like (s.InvoiceNumbe r, "%[0-9][^A-Z][^a-z]") _
Select s.InvoiceNumber ).Max



Thanks John