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The IsProperSupersetOf() method in C# checks if a HashSet is a proper superset of the specified collection. A proper superset means the HashSet contains all elements of the other collection plus at least one additional element. Syntax Following is the syntax for using the IsProperSupersetOf() method − public bool IsProperSupersetOf(IEnumerable other) Parameters other − The collection to compare with the current HashSet. Return Value Returns true if the HashSet is a proper superset of the specified collection; otherwise, false. Proper Superset Relationship ... Read More
The HybridDictionary class in C# provides a CopyTo() method that allows you to copy all dictionary entries to an array of DictionaryEntry objects. This method is useful when you need to convert dictionary data into array format for processing or storage. The HybridDictionary automatically switches between a ListDictionary (for small collections) and a Hashtable (for larger collections) to optimize performance based on the number of elements. Syntax Following is the syntax for copying HybridDictionary entries to an array − hybridDictionary.CopyTo(array, arrayIndex); Parameters array − The one-dimensional array of type DictionaryEntry ... Read More
This article demonstrates how to generate odd numbers in parallel using LINQ in C#. LINQ (Language Integrated Query) provides a powerful way to query data from collections, arrays, and databases using a SQL-like syntax. When combined with parallel processing, LINQ can efficiently handle large datasets by distributing work across multiple CPU cores. Syntax Following is the syntax for generating odd numbers in parallel using LINQ − IEnumerable odds = ParallelEnumerable.Range(start, count) .Where(x => x % 2 != 0) .Select(x => x); LINQ Methods Used Where() ... Read More
The ListDictionary class in C# provides the Clear() method to remove all key-value pairs from the collection. This method is useful when you need to empty the entire dictionary without creating a new instance. Syntax Following is the syntax for the Clear() method − listDictionary.Clear(); Parameters The Clear() method takes no parameters. Return Value The method returns void and modifies the existing ListDictionary by removing all entries. Using Clear() Method Example using System; using System.Collections; using System.Collections.Specialized; public class Demo { public ... Read More
To remove all objects from a Queue in C#, use the Clear() method. This method removes all elements from the Queue and resets its count to zero. The Queue class provides this built-in method for efficient bulk removal of all elements. Syntax Following is the syntax for the Clear() − queue.Clear(); Where queue is the Queue object from which all elements will be removed. Using Clear() Method Example 1 The following example demonstrates clearing a Queue containing string elements − using System; using System.Collections.Generic; public class Demo { ... Read More
A HybridDictionary in C# is a collection that automatically switches between a ListDictionary for small collections and a Hashtable for larger collections. To count the number of key/value pairs in a HybridDictionary, we use the Count property. The HybridDictionary optimizes performance by using different internal storage mechanisms based on the number of elements. For collections with 10 or fewer items, it uses a ListDictionary, and for larger collections, it switches to a Hashtable. Syntax Following is the syntax for getting the count of key/value pairs in a HybridDictionary − HybridDictionary dictionary = new HybridDictionary(); int ... Read More
A static class is declared using the static keyword and contains only static members that belong to the class itself rather than any instance. A Singleton is a design pattern that ensures only one instance of a class can be created and provides global access to that instance. Static Class A static class cannot be instantiated and all its members must be static. It is loaded automatically by the .NET Framework before the class is referenced for the first time − Syntax public static class ClassName { public static void Method() ... Read More
The HybridDictionary class in C# provides the GetEnumerator() method to iterate through its key-value pairs. This method returns an IDictionaryEnumerator object that allows you to traverse the collection efficiently. You can also use foreach loops to iterate through a HybridDictionary. Syntax Following is the syntax for getting an enumerator from a HybridDictionary − IDictionaryEnumerator enumerator = hybridDict.GetEnumerator(); The enumerator provides these key properties − enumerator.Key // Current key enumerator.Value // Current value enumerator.Entry // Current DictionaryEntry HybridDictionary Enumeration ... Read More
A synchronized wrapper for a SortedList object provides thread-safe access to the collection in multi-threaded environments. The SortedList.Synchronized() method creates a wrapper that ensures only one thread can access the collection at a time. Syntax Following is the syntax for creating a synchronized wrapper − SortedList synchronizedList = SortedList.Synchronized(originalList); To check if a SortedList is synchronized, use the IsSynchronized property − bool isSync = sortedList.IsSynchronized; Creating a Synchronized SortedList The following example demonstrates how to create a synchronized wrapper and verify its synchronization status − using System; ... Read More
The Singleton design pattern belongs to the Creational type pattern. It ensures that only one instance of a particular class is created throughout the application lifecycle. This single instance coordinates actions across the application and provides global access to shared resources. The Singleton pattern is useful when you need exactly one instance of a class, such as for logging, caching, thread pools, or configuration settings. Implementation Guidelines Declare all constructors as private to prevent external instantiation. Provide a static property or method that returns the single instance. Store the instance in a static field to ensure ... Read More