How to assign Custom class as datasource in crystal report

I created crystal report and through Data-->object i generated the DataSource and i added the fields from generated Datasource. My problem is, how to assign the values to the datasource.

Is anything like grid.DataSource = MyCustomClass is available. I can't access the Database directly [its a remove service]. What is the way to assign the values.

I want some thing like

    class CustomClass
    {
      string name;  
      string number;

       public string Name
       {
       set
       {
         return name;
       }
       }

       public string Number
       {
       set
       {
           return number;
        }
       }

    }
CustomClass custom = new CustomClass ();

custom.Name = "Mohan";
custom.Number = "100";

reportViewer.DataSource = custom ;

Is it anything similar to this is available.