using MongoDB.Bson;
using MongoDB.Driver;
using System;
using System.Collections.Generic;
 
class Program
{
    static void Main(string[] args)
    {
        var client = new MongoClient("mongodb://localhost:27017");
        var database = client.GetDatabase("SchoolDB");
        var collection = database.GetCollection<BsonDocument>("students");
 
        // ایجاد جدول دانش‌آموزان
        collection.CreateIfNotExists();
    }
}

using MongoDB.Bson;
using MongoDB.Driver;
using System;
using System.Collections.Generic;
 
class Program
{
    static void Main(string[] args)
    {
        var client = new MongoClient("mongodb://localhost:27017");
        var database = client.GetDatabase("SchoolDB");
        var collection = database.GetCollection<BsonDocument>("students");
 
        // درج دانش‌آموزان
        var students = new List<BsonDocument>
        {
            new BsonDocument { { "name", "Alice" }, { "age", 20 }, { "major", "Computer Science" } },
            new BsonDocument { { "name", "Bob" }, { "age", 22 }, { "major", "Mathematics" } },
            new BsonDocument { { "name", "Charlie" }, { "age", 21 }, { "major", "Physics" } }
        };
 
        collection.InsertMany(students);
    }
}

using MongoDB.Bson;
using MongoDB.Driver;
using System;
using System.Collections.Generic;
 
class Program
{
    static void Main(string[] args)
    {
        var client = new MongoClient("mongodb://localhost:27017");
        var database = client.GetDatabase("SchoolDB");
        var collection = database.GetCollection<BsonDocument>("students");
 
        // دریافت همه دانش‌آموزان
        var students = collection.Find(new BsonDocument()).ToList();
        foreach (var student in students)
        {
            Console.WriteLine(student.ToJson());
        }
    }
}

using MongoDB.Bson;
using MongoDB.Driver;
using System;
 
class Program
{
    static void Main(string[] args)
    {
        var client = new MongoClient("mongodb://localhost:27017");
        var database = client.GetDatabase("SchoolDB");
        var collection = database.GetCollection<BsonDocument>("students");
 
        // تغییر سن دانش‌آموز Alice به 21
        collection.UpdateOne(new BsonDocument { { "name", "Alice" } }, Builders<BsonDocument>.Update.Set("age", 21));
 
        // به‌روزرسانی نام دانش‌آموز Charlie به "Charles"
        collection.UpdateOne(new BsonDocument { { "name", "Charlie" } }, Builders<BsonDocument>.Update.Set("name", "Charles"));
    }
}

using MongoDB.Bson;
using MongoDB.Driver;
using System;
 
class Program
{
    static void Main(string[] args)
    {
        var client = new MongoClient("mongodb://localhost:27017");
        var database = client.GetDatabase("SchoolDB");
        var collection = database.GetCollection<BsonDocument>("students");
 
        // حذف دانش‌آموز Bob
        collection.DeleteOne(new BsonDocument { { "name", "Bob" } });
    }
}