MongoDB storage generic list set

   Protected     Virtual  Configurationbuilder getconfiguration ()
{
VaR Builder  =     New  Configurationbuilder ();
Builder. readconnectionstringfromappsettings (  "  Tests  "  );
  Return Builder;
}
  //  Data ing Class (Key, value)  
    Class  Listinfo
{
  Public     Int  Key {  Get  ;  Set  ;}
  Public    Object  Value {  Get  ;  Set  ;}
}
  Static     Void  Main (  String  [] ARGs)
{
VaR config  =     New  Configurationbuilder ();
 //  Comment out from here  
  Config. Mapping (Mapping  =>  
{
Mapping. defaultprofile (Profile  =>  
{
Profile. subclassesare (T  =>  T. issubclassof (  Typeof  (Listinfo )));
});
Mapping. Map  < Listinfo  >  ();
});

Config. connectionstring (  "  Server = 127.0.0.1  "  );
  Using  (Mongo  =     New  Mongo (config. buildconfiguration ()))
{
Mongo. Disconnect ();
Mongo. Connect ();
  Try 
{
VaR DB  =  Mongo. getdatabase (  "  Testdb  "  );
VaR collection  =  DB. getcollection  <  Listinfo  >  ();
  //  To add information, you can open comments.  
 Listinfo list  =  Bindvendor ();
Collection. Save (list );
VaR Coll  =  DB. getcollection (  "  Listinfo  "  );
VaR info  =  Coll. Find (  New  Document (). Add (  "  Key "  ,  7888  ). Documents. tolist ();
  String  Showinfo  =     ""  ;
  Foreach  (Document item  In  Info)
{

VaR listd  = Item. Values. tolist ();
Showinfo  + =     "  No:  "     +  Listd [  1  ];
List  <  Document  >  Items  = (Listd [  2  ]  As  List  <  Document  >  );
  Foreach  (VAR Item1  In  Items)
{
VaR item2  =  Item1.tolist ()[  1 ]. Value;
Showinfo  + =     "  Name:  "     +  Item2;
}

}
Console. writeline (showinfo );
}
  Catch  {}
}
Console. readkey ();
}

  # Region  Set Information 

  # Region  Add information to combine  
  Private     Static  Listinfo bindvendor ()
{
Vendor Square  =     New  Vendor ()
{
Vendorid  =     2 ,
Vendorname  =     "  Xijiao Auto Parts City  "  ,
Itemid  =  Datetime. Now. Second
};
List  <  Vendor  >  List  =     New List  <  Vendor  >  ();
List. Add (square );
Listinfo  =     New  Listinfo ()
{
Key  =     7888  ,
Value  =  List
};
 Return  Listinfo;
}
  # Endregion  
  # Region  Entity class  
  Class  Vendor
{
  Public     Int  Vendorid {  Get  ;  Set  ;}
 Public     String  Vendorname {  Get  ;  Set  ;}
  Public     Int  Itemid {  Get  ;  Set  ;}
}
  # Endregion 

  # Endregion