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Check if the StringDictionary contains a specific value in C#
To check if the StringDictionary contains a specific value, the code is as follows −
Example
using System;
using System.Collections;
using System.Collections.Specialized;
public class Demo {
public static void Main(){
StringDictionary strDict1 = new StringDictionary();
strDict1.Add("A", "John");
strDict1.Add("B", "Andy");
strDict1.Add("C", "Tim");
strDict1.Add("D", "Ryan");
strDict1.Add("E", "Kevin");
strDict1.Add("F", "Katie");
strDict1.Add("G", "Brad");
Console.WriteLine("StringDictionary1 elements...");
foreach(DictionaryEntry d in strDict1){
Console.WriteLine(d.Key + " " + d.Value);
}
Console.WriteLine("Does StringDictionary1 has key G? "+strDict1.ContainsKey("G"));
Console.WriteLine("Does StringDictionary1 has value Ryan? "+strDict1.ContainsValue("Ryan"));
StringDictionary strDict2 = new StringDictionary();
strDict2.Add("A", "John");
strDict2.Add("B", "Andy");
strDict2.Add("C", "Tim");
strDict2.Add("D", "Ryan");
strDict2.Add("E", "Kevin");
strDict2.Add("F", "Katie");
strDict2.Add("G", "Brad");
Console.WriteLine("
StringDictionary2 elements...");
foreach(DictionaryEntry d in strDict2){
Console.WriteLine(d.Key + " " + d.Value);
}
Console.WriteLine("
Is Dictionary2 equal to Dictionary1? = "+strDict2.Equals(strDict1));
Console.WriteLine("Does StringDictionary2 has key B? "+strDict2.ContainsKey("B"));
}
}Output
This will produce the following output −
StringDictionary1 elements... a John b Andy c Tim d Ryan e Kevin f Katie g Brad Does StringDictionary1 has key G? True Does StringDictionary1 has value Ryan? True StringDictionary2 elements... a John b Andy c Tim d Ryan e Kevin f Katie g Brad Is Dictionary2 equal to Dictionary1? = False Does StringDictionary2 has key B? True
Example
Let us see another example −
using System;
using System.Collections;
using System.Collections.Specialized;
public class Demo {
public static void Main(){
StringDictionary strDict1 = new StringDictionary();
strDict1.Add("U", "Electronics");
strDict1.Add("V", "Toys");
strDict1.Add("W", "Books");
strDict1.Add("X", "Accessories");
Console.WriteLine("StringDictionary1 elements...");
foreach(DictionaryEntry d in strDict1){
Console.WriteLine(d.Key + " " + d.Value);
}
Console.WriteLine("Does StringDictionary1 has key G? "+strDict1.ContainsKey("G"));
Console.WriteLine("Does StringDictionary1 has value Footwear? "+strDict1.ContainsValue("Footwear"));
StringDictionary strDict2 = new StringDictionary();
strDict2.Add("A", "John");
strDict2.Add("B", "Andy");
strDict2.Add("C", "Tim");
strDict2.Add("D", "Ryan");
strDict2.Add("E", "Kevin");
strDict2.Add("F", "Katie");
strDict2.Add("G", "Brad");
Console.WriteLine("
StringDictionary2 elements...");
foreach(DictionaryEntry d in strDict2){
Console.WriteLine(d.Key + " " + d.Value);
}
Console.WriteLine("
Is Dictionary2 equal to Dictionary1? = "+strDict2.Equals(strDict1));
Console.WriteLine("Does StringDictionary2 has key B? "+strDict2.ContainsKey("B"));
}
}Output
This will produce the following output −
StringDictionary1 elements... x Accessories u Electronics v Toys w Books Does StringDictionary1 has key G? False Does StringDictionary1 has value Footwear? False StringDictionary2 elements... a John b Andy c Tim d Ryan e Kevin f Katie g Brad Is Dictionary2 equal to Dictionary1? = False Does StringDictionary2 has key B? True
Updated on: 04-Dec-2019
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