.ToSelectList parameters error to display in dropdownlist

I am having some trouble figuring out what parameters to pass in my .ToSelectList() so i can display my results in a dropdown list box. I have two IQueryable items and i want to display the results together in one dropdown. I don't have to compare and match it is simply grap and display. A sample of how the results look like is:

Teacher
Doctor
Nurse
Engineer
Jack Smith
Tim Jones
Jill Jack

Here is how my code looks so far:

IQueryable<Report_JobResults> jobs=
            _jobsReportRepository.summaryGetJob().OrderBy(o=>o.JobName);

IQueryable<Report_nameResult> users =
           _nameReportRepository.summaryGetName().OrderBy(n => n.FirstName).The开发者_JAVA百科nBy(
               n => n.LastName);

//Here is where i display results into a dropdown box.

view.Results=jobs.Select(o => o.jobId).ToList().Union(users.Select(u =>     u.userId).ToList()).ToSelectList();

I am not sure what the parameters will be in the .ToSelectList()

Help will be very much appreciated. :)

thanks

---

You can try

var results = jobs.Select(o => o.jobId).Union(users.Select(u => u.userId))
    .Select( i => new SelectListItem
    {
        Text = i,
        Value = i
    };

and use results for in Html.DropDownListFor().