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Add key and value into OrderedDictionary collection in C#
To add key and value into OrderedDictionary collection, the code is as follows −
Example
using System;
using System.Collections;
using System.Collections.Specialized;
public class Demo {
public static void Main() {
OrderedDictionary dict1 = new OrderedDictionary();
dict1.Add("A", "Books");
dict1.Add("B", "Electronics");
dict1.Add("C", "Smart Wearables");
dict1.Add("D", "Pet Supplies");
dict1.Add("E", "Clothing");
dict1.Add("F", "Footwear");
Console.WriteLine("OrderedDictionary1 elements...");
foreach(DictionaryEntry d in dict1) {
Console.WriteLine(d.Key + " " + d.Value);
}
OrderedDictionary dict2 = new OrderedDictionary();
dict2.Add("1", "One");
dict2.Add("2", "Two");
dict2.Add("3", "Three");
dict2.Add("4", "Four");
dict2.Add("5", "Five");
dict2.Add("6", "Six");
Console.WriteLine("
OrderedDictionary2 elements...");
foreach(DictionaryEntry d in dict2) {
Console.WriteLine(d.Key + " " + d.Value);
}
Console.WriteLine("
Is OrderedDictionary1 equal to OrderedDictionary2? = "+(dict1.Equals(dict2)));
}
}Output
This will produce the following output −
OrderedDictionary1 elements... A Books B Electronics C Smart Wearables D Pet Supplies E Clothing F Footwear OrderedDictionary2 elements... 1 One 2 Two 3 Three 4 Four 5 Five 6 Six Is OrderedDictionary1 equal to OrderedDictionary2? = False
Example
Let us see another example −
using System;
using System.Collections;
using System.Collections.Specialized;
public class Demo {
public static void Main() {
OrderedDictionary dict = new OrderedDictionary();
dict.Add("1", "One");
dict.Add("2", "Two");
dict.Add("3", "Three");
dict.Add("4", "Four");
dict.Add("5", "Five");
dict.Add("6", "Six");
dict.Add("7", "Seven");
dict.Add("8", "Eight");
ICollection col = dict.Values;
String[] strVal = new String[dict.Count];
col.CopyTo(strVal, 0);
Console.WriteLine("Displaying the values...");
for (int i = 0; i < dict.Count; i++) {
Console.WriteLine(strVal[i]);
}
Console.WriteLine("Is OrderedDictionary read-only? = "+dict.IsReadOnly);
Console.WriteLine("The OrderedDictionary has the key 15? = "+dict.Contains("15"));
Console.WriteLine("The OrderedDictionary has the key 5? = "+dict.Contains("5"));
}
}Output
This will produce the following output −
Displaying the values... One Two Three Four Five Six Seven Eight Is OrderedDictionary read-only? = False The OrderedDictionary has the key 15? = False The OrderedDictionary has the key 5? = True
Updated on: 05-Dec-2019
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