cannot update. please help

[john-qin]

I am using sql server 2008. I got this error message "Cannot implicitly convert type 'int' to 'XDocImportSvc.Models.CorvelRequest" when i tried to update a record, couldn't figure out what the problem is. Please help.

    public CorvelRequest InsertCorvelRequest(CorvelRequest item)
    {
        if (item.Id > 0)
        {
            return _db.CorvelRequest.Update(item);
        }
        else
        {
            return _db.CorvelRequest.Insert(item);
        }
    }

Insert works. i can insert it to the DB , but update failed. I also tried UpdateById, got the same error. item is the same for both insert and update except for update Id is not 0.

[john-qin]

fixed.