mvc fill dropdownlist

i use this code to fill dropdownlist

ViewData["projectType"] = new SelectList  
  (_dataManager.Project.ProjectTypeList(), "Id", "Name");

but what i must do if i want to use not one table column but two or more columns? for example

ViewData["projectType"] = new SelectList  
  (_dataManager.Project.ProjectTypeList(), "Id", "Name1"+"Name2");

Just add a property to your model ViewModel:

public partial class Project
{
    public string FullName 
    {
        get { return Name1 + Name2; }
    }
}

and use this property:

ViewData["projectType"] = new SelectList(
    _dataManager.Project.ProjectTypeList(), 
    "Id", 
    "FullName"
);