How to create a StringDictionary in C# (original) (raw)

Last Updated : 27 Feb, 2019

StringDictionary() constructor is used to initialize a new instance of the StringDictionary class which will be empty and will have the default initial capacity. StringDictionary is a specialized collection. This class comes under the System.Collections.Specialized namespace. It only allows string keys and string values. It suffers from performance problems. It implements a hash table with the key and the value strongly typed to be strings rather than objects.Syntax:

public StringDictionary ();

Example 1:

csharp `

// C# Program to illustrate how // to create a StringDictionary using System; using System.Collections; using System.Collections.Specialized;

class Geeks {

// Main Method
public static void Main(String[] args)
{

    // sd is the StringDictionary object
    // StringDictionary() is the constructor
    // used to initializes a new
    // instance of the StringDictionary class
    StringDictionary sd = new StringDictionary();

    // Count property is used to get the
    // number of elements in StringDictionary
    // It will give 0 as no elements
    // are present currently
    Console.WriteLine(sd.Count);
}

}

Example 2:

csharp `

// C# Program to illustrate how // to create a StringDictionary using System; using System.Collections; using System.Collections.Specialized;

class Geeks {

// Main Method
public static void Main(String[] args)
{

    // sd is the StringDictionary object
    // StringDictionary() is the constructor
    // used to initializes a new
    // instance of the StringDictionary class
    StringDictionary sd = new StringDictionary();

    Console.Write("Before Add Method: ");

    // Count property is used to get the
    // number of elements in StringDictionary
    // It will give 0 as no elements
    // are present currently
    Console.WriteLine(sd.Count);

    // Adding key/value pairs in sd
    sd.Add("1", "C");
    sd.Add("2", "C++");
    sd.Add("3", "Java");
    sd.Add("4", "Python");
    sd.Add("5", "C#");
    sd.Add("6", "HTML");

    Console.Write("After Add Method: ");

    // Count property is used to get the
    // number of elements in sd
    Console.WriteLine(sd.Count);
}

}

Output:

Before Add Method: 0 After Add Method: 6

Reference:

https://docs.microsoft.com/en-us/dotnet/api/system.collections.specialized.stringdictionary.-ctor?view=netframework-4.7.2

How to create a StringDictionary in C# (original) (raw)

Similar Reads