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The SortedDictionary.Values property in C# is used to get a collection containing the values in the SortedDictionary. This property returns a ValueCollection that preserves the sorted order of the original dictionary based on the keys. Syntax Following is the syntax for the Values property − public SortedDictionary.ValueCollection Values { get; } Return Value The property returns a SortedDictionary.ValueCollection containing all the values in the sorted dictionary. The values maintain the same order as their corresponding keys in the sorted dictionary. Using Values Property to Iterate Through Values The following example demonstrates ... Read More
The ListDictionary class in C# provides the Contains() method to check if a specific key exists in the collection. This method returns true if the key is found, otherwise false. ListDictionary is part of the System.Collections.Specialized namespace and is optimized for small collections. Syntax Following is the syntax for using the Contains() − public bool Contains(object key); Parameters key − The object to locate in the ListDictionary. Return Value Returns true if the ListDictionary contains an element with the specified key; otherwise, false. Using Contains() Method ... Read More
The GetTypeCode() method in C# returns a TypeCode enumeration value that identifies the specific type of a variable. For UInt64 (unsigned 64-bit integer) values, this method always returns TypeCode.UInt64, regardless of the actual numeric value stored. Syntax Following is the syntax for getting the TypeCode of a UInt64 value − TypeCode typeCode = uintValue.GetTypeCode(); Return Value The method returns TypeCode.UInt64 for all ulong variables, which represents the 64-bit unsigned integer type in the .NET type system. Using GetTypeCode() with UInt64 Values Example using System; public class Demo { ... Read More
The foreach loop in C# runs on a single thread and processes items sequentially one by one. In contrast, Parallel.ForEach utilizes multiple threads to process items concurrently, potentially improving performance for CPU-intensive operations on large collections. The key difference is that Parallel.ForEach can distribute work across multiple threads, while the standard foreach executes on a single thread. To use Parallel.ForEach, you need to import the System.Threading.Tasks namespace. Syntax Following is the syntax for a standard foreach loop − foreach (var item in collection) { // sequential processing } Following is ... Read More
The Task.WaitAll() and Task.WhenAll() methods in C# serve different purposes when working with multiple asynchronous tasks. Task.WaitAll() blocks the current thread until all tasks complete, while Task.WhenAll() returns a new task that represents the completion of all provided tasks without blocking the calling thread. Understanding the difference between these methods is crucial for building responsive applications, especially those with user interfaces where blocking the main thread can freeze the UI. Syntax Following is the syntax for Task.WaitAll() − Task.WaitAll(task1, task2, task3); // or with timeout Task.WaitAll(new Task[] { task1, task2 }, TimeSpan.FromSeconds(30)); Following ... Read More
The Random.Next() method in C# is used to generate non-negative random integers. It provides multiple overloads to control the range of generated numbers, making it useful for various scenarios like games, simulations, and testing. Syntax The Random.Next() method has three overloads − public virtual int Next(); public virtual int Next(int maxValue); public virtual int Next(int minValue, int maxValue); Parameters maxValue − The exclusive upper bound of the random number (0 to maxValue-1). minValue − The inclusive lower bound of the random number. maxValue − The exclusive upper bound of the random number ... Read More
The ListDictionary class in C# provides the IsFixedSize property to determine whether the dictionary has a fixed size. A ListDictionary is a lightweight collection that stores key-value pairs using a singly linked list implementation, making it ideal for small collections (typically 10 or fewer items). Syntax Following is the syntax for checking if a ListDictionary has a fixed size − bool isFixed = listDictionary.IsFixedSize; Return Value The IsFixedSize property returns a bool value − true − The ListDictionary has a fixed size and cannot grow or shrink false ... Read More
The Uri.HexEscape() method in C# converts a specified character into its hexadecimal equivalent representation using percent-encoding. This method is particularly useful for URL encoding where certain characters need to be represented in hexadecimal format for safe transmission in URIs. Syntax Following is the syntax − public static string HexEscape(char ch); Parameters ch − The character to convert to hexadecimal representation. Return Value Returns a string containing the hexadecimal representation of the character in the format %XX, where XX is the two-digit hexadecimal value. HexEscape Character Conversion ... Read More
In C#, Dictionary is a generic collection which is generally used to store key/value pairs. In Dictionary, the key cannot be null, but value can be. A key must be unique. Duplicate keys are not allowed if we try to use duplicate key then compiler will throw an exception. As mentioned above a value in a dictionary can be updated by using its key as the key is unique for every value. Syntax Following is the syntax for updating a dictionary value − myDictionary[myKey] = myNewValue; You can also use the TryGetValue method ... Read More
In ASP.NET Web API, parameter binding determines how action method parameters receive values from HTTP requests. The [FromUri] and [FromBody] attributes control the source of parameter data, providing explicit control over this binding process. The FromUri attribute forces Web API to bind parameters from the URI query string, route data, or headers instead of the request body. The FromBody attribute instructs Web API to read parameter values from the HTTP request body using formatters like JSON or XML. Syntax Following is the syntax for using [FromUri] attribute − public IActionResult Method([FromUri] ModelClass model) { ... Read More