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Programming Articles
Page 58 of 2547
Capacity of a List in C#
The Capacity property of a List in C# represents the total number of elements the internal array can hold before needing to be resized. This is different from the Count property, which represents the actual number of elements currently stored in the list. Understanding capacity is important for performance optimization, as the list automatically doubles its capacity when more space is needed, which involves allocating a new array and copying existing elements. Syntax Following is the syntax to get the capacity of a list − int capacity = listName.Capacity; You can also set ...
Read MoreHow to get the Unix timestamp in C#
A Unix timestamp is a system for describing time as the number of seconds that have elapsed since January 1, 1970, at 00:00:00 UTC. This epoch time is widely used across different operating systems and programming languages for consistent time representation. Unix timestamps are particularly useful for storing dates in databases, comparing times across different time zones, and working with APIs that expect epoch time values. What is Unix Timestamp? The Unix timestamp represents time as a single integer value − the count of seconds since the Unix epoch (January 1, 1970, UTC). This makes it timezone-independent ...
Read MoreConvert the value of the current DateTime object to UTC in C#
To convert the value of the current DateTime object to Coordinated Universal Time (UTC), C# provides the ToUniversalTime() method. This method converts a local time or unspecified DateTime to its equivalent UTC representation. Syntax Following is the syntax for the ToUniversalTime() method − DateTime utcDateTime = localDateTime.ToUniversalTime(); Return Value The ToUniversalTime() method returns a new DateTime object that represents the UTC equivalent of the original DateTime. If the original DateTime's Kind property is DateTimeKind.Utc, it returns the same value unchanged. Local Time to UTC Conversion ...
Read MoreWhat is if/then directives for debug vs release in C#?
In C#, conditional compilation directives like #if DEBUG allow you to include or exclude code based on the build configuration. Visual Studio provides two main build configurations: Debug mode for development and debugging, and Release mode for final production builds. The #if DEBUG directive enables code to execute only when compiled in Debug mode. In Release mode, this code is completely excluded from compilation, making it useful for debugging statements, logging, and development-only features. Syntax Following is the basic syntax for conditional compilation directives − #if DEBUG // Code executed only ...
Read MoreWhat are built-in message handlers in Asp.Net webAPI C#?
A message handler is a class that receives an HTTP request and returns an HTTP response. Message handlers derive from the abstract HttpMessageHandler class and provide us the opportunity to process, edit, or decline an incoming request before it reaches the HttpControllerDispatcher. Message handlers are executed much earlier in the request processing pipeline, making them ideal for implementing cross-cutting concerns in Web API. They form a chain of classes that process HTTP requests and responses through a pipeline. ASP.NET Web API Message Handler Pipeline ...
Read MoreGet the hash code for the current Decimal instance in C#
The GetHashCode() method in C# returns a 32-bit signed integer hash code for the current Decimal instance. This hash code is used internally by collections like HashSet and Dictionary to efficiently store and retrieve decimal values. Hash codes are essential for the proper functioning of hash-based collections, as they provide a quick way to categorize and locate objects. Two Decimal instances that are equal will always return the same hash code, but different decimal values may occasionally produce the same hash code (hash collision). Syntax Following is the syntax for getting the hash code of a Decimal ...
Read MoreHow to sort a list of complex types using Comparison delegate in C#?
Sorting a list of complex types in C# can be achieved using the Comparison delegate with the Sort() method. The List.Sort() method has an overload that accepts a Comparison delegate, allowing you to define custom sorting logic for complex objects. The Comparison delegate represents a method that compares two objects of the same type and returns an integer indicating their relative order. Syntax Following is the syntax for the Sort() method using a Comparison delegate − public void Sort(Comparison comparison) The comparison delegate signature is − public delegate int Comparison(T x, ...
Read MoreC# String Properties
The String class in C# provides essential properties that allow you to access and examine string data. The two primary properties are Chars for accessing individual characters and Length for determining the string size. String Properties Following are the key properties of the String class in C# − Property Description Chars Gets the Char object at a specified position in the current String object using indexer syntax. Length Gets the number of characters in the current String object. Syntax Following is the syntax ...
Read MoreWhat is the difference between Monitor and Lock in C#?
Both Monitor and lock provide thread synchronization mechanisms in C#, but they serve different purposes. The lock statement is a simplified syntax that internally uses Monitor.Enter and Monitor.Exit with proper exception handling. Monitor offers more advanced features for complex threading scenarios. Syntax Following is the syntax for using lock statement − lock (lockObject) { // critical section code } Following is the syntax for using Monitor class − Monitor.Enter(lockObject); try { // critical section code } finally { Monitor.Exit(lockObject); } ...
Read MoreDifference Between C# and C++
C# and C++ are both powerful programming languages, but they serve different purposes and have distinct characteristics. Understanding their differences helps developers choose the right language for their projects. What is C#? C# is a general-purpose object-oriented programming language developed by Anders Hejlsberg and his team at Microsoft. It is pronounced as 'C sharp' and is considered a pure object-oriented programming language that runs on the .NET framework. Key characteristics of C# include − Automatic memory management through garbage collection Platform-specific (primarily Windows, though .NET Core enables cross-platform development) No ...
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