Custom Data Annotations ASP.NET MVC C#

I have the follwing question about MVC 2 with C#.

Here is my Model:

public class Pmjob
{
   [Tooltext="Hier soll der Name eingegeben werden"]
   [DisplayName("Type")]
   public int Name { get; set; }
}

Now I want to reach the Tooltext item in my view, e. g.:

@Html.ToolTextFor(Model => Model.Pmjob.Name)

or in the BL:

if ( Model.Pmjob.Name.Tooltext == "") {
}

Is this possible?