insert testing

gistfile1.cs

vcdb_VehiclePart vp = new vcdb_VehiclePart();
try {
    vp = db.vcdb_VehicleParts.Where(x => x.VehicleID.Equals(vehicle.ID) && x.PartNumber.Equals(vpart.partID)).First();
} catch {
    vp = new vcdb_VehiclePart {
        PartNumber = vpart.partID,
        VehicleID = vehicle.ID
    };
    db.vcdb_VehicleParts.InsertOnSubmit(vp);
    db.SubmitChanges();
}