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Programming Articles
Page 67 of 2547
How to run an external application through a C# application?
An external application can be run from a C# application using the Process class. A process is a program that is running on your computer. This can be anything from a small background task, such as a spell-checker or system events handler, to a full-blown application like Notepad. Each process provides the resources needed to execute a program and is started with a single thread, known as the primary thread. Processes are heavily dependent on system resources, while threads require minimal resources. The Process class is present in the System.Diagnostics namespace. Syntax Following is the basic syntax ...
Read MoreCheck if a SortedSet object is a proper superset of the specified collection in C#
To check if a SortedSet object is a proper superset of a specified collection in C#, use the IsProperSupersetOf() method. A proper superset contains all elements of another collection plus at least one additional element. Syntax The syntax for the IsProperSupersetOf() method is − public bool IsProperSupersetOf(IEnumerable other) Parameters other − The collection to compare with the current SortedSet. Return Value Returns true if the current SortedSet is a proper superset of the specified collection; otherwise, false. Proper Superset Relationship ...
Read MoreWhat is the use of the Configure() method of startup class in C# Asp.net Core?
The Configure() method in ASP.NET Core's Startup class is used to define the application's request pipeline. This method configures how the application handles incoming HTTP requests and outgoing responses using middleware components. The Configure() method is called at runtime after the ConfigureServices() method. It receives an IApplicationBuilder instance from the built-in IoC container, which is used to add middleware to the request pipeline. Syntax Following is the basic syntax of the Configure() method − public void Configure(IApplicationBuilder app, IWebHostEnvironment env) { // Configure middleware pipeline } Parameters The ...
Read MoreGet or set the number of elements that the ArrayList can contain in C#
The Capacity property of an ArrayList in C# gets or sets the number of elements that the ArrayList can contain without resizing. This is different from the Count property, which represents the actual number of elements currently stored in the ArrayList. When elements are added and the capacity is exceeded, the ArrayList automatically doubles its capacity to accommodate more elements. Syntax Following is the syntax for getting the capacity − int capacity = arrayList.Capacity; Following is the syntax for setting the capacity − arrayList.Capacity = newCapacity; Understanding Capacity vs ...
Read MoreWhat is the use of "Map" extension while adding middleware to C# ASP.NET Core pipeline?
The Map extension method in ASP.NET Core is used for conditional middleware execution based on the request path. It allows you to branch the middleware pipeline and execute different middleware components for specific URL paths, creating a more organized and efficient request handling system. Middleware components are assembled into an application pipeline to handle requests and responses. Each component can choose whether to pass the request to the next component and perform actions before and after the next component is invoked. Syntax Following is the syntax for using the Map extension method − app.Map("/path", appBuilder ...
Read MoreCheck if ValueTuple Instances are Equal in C#
In C#, ValueTuple is a structure type that can be used to create a lightweight, self-describing tuple that can contain multiple fields. Comparing two ValueTuple instances for equality is a common requirement in various programming scenarios. This article will guide you through the process of checking if two ValueTuple instances are equal in C#. Understanding ValueTuples in C# Introduced in C# 7.0, a ValueTuple is a value type representation of the Tuple. It is a structure that allows an ordered sequence of two or more elements, known as items, to be bundled together. This structure can be used ...
Read MoreWhat is the difference between IApplicationBuilder.Use() and IApplicationBuilder.Run() C# Asp.net Core?
We can configure middleware in the Configure method of the Startup class using IApplicationBuilder instance. The two primary methods for adding middleware are Run() and Use(), each serving different purposes in the middleware pipeline. Run() is an extension method that adds a terminal middleware to the application's request pipeline, meaning it terminates the pipeline and does not call the next middleware. Use() allows middleware to pass control to the next component in the pipeline. Syntax Following is the syntax for the Run() method − public static void Run(this IApplicationBuilder app, RequestDelegate handler) Following ...
Read MoreCheck if the SortedSet contains a specific element in C#
The SortedSet class in C# provides the Contains() method to check if a specific element exists in the sorted set. This method returns true if the element is found, otherwise false. Syntax Following is the syntax for the Contains() method − bool Contains(T item) Parameters item − The element to locate in the SortedSet. Return Value Returns true if the SortedSet contains the specified element; otherwise, false. Using Contains() with String Elements Example using System; using System.Collections.Generic; public class Demo { ...
Read MoreGet or Set the value associated with specified key in Hashtable in C#
In C#, you can get or set the value associated with a specified key in a Hashtable using the indexer hashtable[key]. This provides a convenient way to access and modify values using their keys. Syntax Following is the syntax for getting a value from a Hashtable − object value = hashtable[key]; Following is the syntax for setting a value in a Hashtable − hashtable[key] = value; Getting Values from Hashtable You can retrieve values from a Hashtable using the key as an index. If the key doesn't exist, it ...
Read MoreChecking if Two ValueTuple T1 are Equal or Not in C#
ValueTuple in C# is a structure used to represent a data structure that can hold more than one value of differing types. Introduced in C# 7.0, ValueTuples are a significant improvement over classic tuples as they provide semantic names to the fields and better performance. This article demonstrates how to compare two instances of ValueTuple to check if they are equal. Understanding ValueTuple in C# ValueTuple is a value type representation of the Tuple class. Unlike reference-type Tuples, ValueTuples are stored on the stack and allow you to create tuples with named fields, making your code more readable ...
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