MongoDB Mongo CSHARP driver source code analysis (1)

MongoDB Mongo csharp driver: https://github.com/mongodb/mongo-csharp-driver/downloads

For details, visit the official MongoDB website.

The following example shows a simple query:

 //  Create a database connection. The default local connection port is 27017.  
  Mongoserver Server  =  Login server. Create ();
  //  Obtain the database. If not, it is automatically created. 
  Relational Database  =  Server. getdatabase (  "  Mydatabase  "  );
  //  Get collection set  
  Mongocollection things  =  Database. getcollection (  "  Things "  );
  Try  
{
  //  Open connection  
  Server. Connect ();
  //  Set the query condition X like (3, 4)  
  Queryconditionlist Condition  =     New  Queryconditionlist ( "  X  "  );
Condition. In (  New  Bsonarray (). Add (  New  Bsonint32 (  3  ). Add (  New  Bsonint32 (  4  )));
Mongocursor  <  Bsondocument >  Cur  =  Things. findas  <  Bsondocument  >  (Condition );
  Foreach  (Bsondocument item  In  Cur)
{
MessageBox. Show (item [  "  J  " ]. Asdouble. tostring ());
}
}
  Finally  
{
  //  Close connection  
  Server. Disconnect ();
} 

In Mongo CSHARP driver, there are mainly driver and bson packages.In the above example, we use several classes

Mongoserver

Relational Database

Collections collection

Queryconditionlist

Mongocursors

In the future, we will first analyze these categories to implement database addition, deletion, modification, and query functions.