Query from multiple tables

Please try like this...

gvIncidents.DataSource =

from i in db.Incidents

from it in db.IncidentTypes

where (i.IncidentTypeId == it.IncidentTypeId)

orderby i.IncidentId descending

select new { IncidentId = i.IncidentId,

DateEntered = i.DateEntered,

EnteredBy = i.EnteredBy,

SchoolId = i.SchoolId,

CallerName = i.CallerName,

ParentIds = i.ParentIds,

StudentIds = i.StudentIds,

IncidentTypeName = it.IncidentTypeName };