# Dictionary

**Dictionary** "TKey, TValue" shablonidagi klass bo'lib, **System.Collection.Generics** namespace sida joylashgan. **Dictionary** kalitlar va qiymatlar to'plami bo'lib, boshqa to'plamlar kabi kalit/qiymat ko'rinishida element qabul qiladi. **Hashtable** dan farqi, **Dictionary** da qidirish tizimi tezroq

```csharp
    using System.Collections.Generic;
```

{% hint style="info" %}
**MUHIM QOIDALAR!**

• Kalitlar bir xil bo'lmasligi kerak

• Kalit null qiymat qabul qilmaydi
{% endhint %}

## Misol:

```csharp
     Dictionary<string, string> Mdic = new Dictionary<string, string>();

            Mdic.Add("1", ".NET");   //1 juftliklar soni
            Mdic.Add("2", "C#");     //2
            Mdic.Add("3", "Asp.NET");//3
            Mdic.Add("4", "LINQ");   //4

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            foreach (var item in Mdic)
            {
                Console.WriteLine($"Kalit = {item.Key}  Qiymat = {item.Value}");
            }
```

![](https://2189654329-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-ML4YbrwilsjU6IyB7jd%2Fsync%2Fc941f720f357f1c9939a464e2184a86790439d23.png?generation=1626090811158744\&alt=media)

```csharp
    Dictionary<string, string> Mdic = new Dictionary<string, string>();

            Mdic.Add("1", ".NET");   //1 juftliklar soni
            Mdic.Add("2", "C#");     //2
            Mdic.Add("3", "Asp.NET");//3
            Mdic.Add("4", "LINQ");   //4

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            Dictionary<string, string>.KeyCollection KColl = Mdic.Keys;

            foreach (var item in KColl)
            {
                 Console.WriteLine($"kalit - {item}");
     }
```

![](https://2189654329-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-ML4YbrwilsjU6IyB7jd%2Fsync%2F36563b6261017dd51dac79eb1349e1d5d592dc71.png?generation=1626090810906692\&alt=media)

```csharp
    Dictionary<string, string> Mdic = new Dictionary<string, string>();

            Mdic.Add("1", ".NET");   //1 juftliklar soni
            Mdic.Add("2", "C#");     //2
            Mdic.Add("3", "Asp.NET");//3
            Mdic.Add("4", "LINQ");   //4

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            Dictionary<string, string>.ValueCollection VColl = Mdic.Values;

            foreach (var item in VColl)
            {
                Console.WriteLine($"qiymat - {item}");
            }
```

![](https://2189654329-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-ML4YbrwilsjU6IyB7jd%2Fsync%2Fe0f3da6aad9add932ea2e72d9458a849528ea4ad.png?generation=1626090810929496\&alt=media)

```csharp
   static void Main(string[] args)
        {
            Dictionary<string, string> Mdic = new Dictionary<string, string>();

            Mdic.Add("1", ".NET");   //1 juftliklar soni
            Mdic.Add("2", "C#");     //2
            Mdic.Add("3", "Asp.NET");//3
            Mdic.Add("4", "LINQ");   //4

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            Console.WriteLine("Clear........");
            Mdic.Clear(); // hamma elementlarni o`chirib yuboradi

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");
        }
```

![](https://2189654329-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-ML4YbrwilsjU6IyB7jd%2Fsync%2F1cc74aac3f0532d94f00908b086d922f34972500.png?generation=1626090811253187\&alt=media)

```csharp
    static void Main(string[] args)
        {
            Dictionary<string, string> Mdic = new Dictionary<string, string>();

            Mdic.Add("1", ".NET");   //1 juftliklar soni
            Mdic.Add("2", "C#");     //2
            Mdic.Add("3", "Asp.NET");//3
            Mdic.Add("4", "LINQ");   //4

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            foreach (var item in Mdic)
            {
                Console.WriteLine($"kalit - {item.Key}   qiymat - {item.Value}");
            }

            Console.WriteLine("****************************");

            Mdic.Remove("1"); //kaliti 1 ga teng bo`lgan juftlikni o`chirib tashlaydi
            Mdic.Remove("2"); //kaliti 2 ga teng bo`lgan juftlikni o`chirib tashlaydi

            Console.WriteLine($"juftliklar soni : {Mdic.Count}");

            foreach (var item in Mdic)
            {
                Console.WriteLine($"kalit - {item.Key}   qiymat - {item.Value}");
            }
        }
```

![](https://2189654329-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-ML4YbrwilsjU6IyB7jd%2Fsync%2Fb048916b2d2c9063b0cd42948c753cd72da27035.png?generation=1626090811088573\&alt=media)