Entity FrameWork 4.1

public SearchMyThings( string a, string b, int c )
{
     var mywidgets = DBContext.DbSet<Widget>();
     

     if( !a.IsNullOrEmpty )
        mywidgets = mywidgets.Where( w => w.AProperty == a );if( !b.IsNullOrEmpty )
        mywidgets = mywidgets.Where( w => w.BProperty == b );if( c > 0 )
        mywidgets = mywidgets.Where( c => c.CProperty == c );}