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Get an ICollection containing the keys in ListDictionary in C#
To get an ICollection containing the keys in ListDictionary, the code is as follows −
Example
using System;
using System.Collections;
using System.Collections.Specialized;
public class Demo {
public static void Main(){
ListDictionary listDict = new ListDictionary();
listDict.Add("1", "Laptop");
listDict.Add("2", "Tablet");
listDict.Add("3", "Desktop");
listDict.Add("4", "Speaker");
listDict.Add("5", "Earphone");
listDict.Add("6", "Headphone");
ICollection col = listDict.Keys;
foreach(String s in col){
Console.WriteLine(s);
}
}
}Output
This will produce the following output −
1 2 3 4 5 6
Example
Let us see another example −
using System;
using System.Collections;
using System.Collections.Specialized;
public class Demo {
public static void Main(){
ListDictionary listDict = new ListDictionary();
listDict.Add("A", "Tom");
listDict.Add("B", "John");
listDict.Add("C", "Kevin");
listDict.Add("D", "Tim");
ICollection col = listDict.Keys;
foreach(String s in col){
Console.WriteLine(s);
}
}
}Output
This will produce the following output −
A B C D
Updated on: 06-Dec-2019
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