Question

hi guys i am stuck converting below sql to LINQ query.
all i want is to have maximum number from list of (FA-00001 ,FA-00059)

SELECT MAX(CAST(SUBSTRING(ReferenceId, PATINDEX('%-%', ReferenceId) + 1, LEN(ReferenceId) - PATINDEX('%-%', ReferenceId)) AS int)) AS MaxReferenceId FROM [ClientRC].[dbo].[EHO_Action]

is this possible to convert to LINQ? thanks

Answer 1

An alternative approach using anonymous projection:

var y = (from record in
                (from record in db.ClientRC
                select new
                {
                    Group = "x",
                    ReferenceNumber = Convert.ToInt32(record.ReferenceId.Split('-')[1])
                })
            group record by new { record.Group } into g
            select new
            {
                MaxReferenceId = g.Max(p => p.ReferenceNumber)
            });