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Showing posts with the label .net

Troubleshooting Guide: Windows 11 Taskbar Not Showing - How to Fix It

  If your Windows 11 taskbar is not showing, you can try several troubleshooting steps to resolve the issue. Here are some potential solutions you can try:

Resolving Cross-Origin Resource Sharing Disabled in .Net

To resolve CORS (Cross-Origin Resource Sharing) disabled in .NET, you need to enable CORS in your .NET application. CORS is a mechanism that allows web browsers to make cross-origin requests to a different domain. Here's how you can enable CORS in a .NET application: Install the Microsoft.AspNetCore.Cors NuGet package: Open the NuGet Package Manager console in Visual Studio and run the following command: Install - Package Microsoft . AspNetCore . Cors Open the Startup.cs file in your .NET project. In the ConfigureServices method, add the CORS service configuration using the AddCors method. This enables CORS for your application. You can specify various options within the AddCors method to configure CORS behavior. Here's a basic example that allows all origins, methods, and headers: public void ConfigureServices ( IServiceCollection services ) { services.AddCors(options => { options.AddDefaultPolicy(builder => { builder.AllowAn

Choosing the Right XML Class: XDocument vs XmlDocument - A Comparative Analysis

XDocument and XmlDocument are both classes provided by the .NET framework for working with XML data. While they serve similar purposes, there are some differences between them. Namespace : XDocument belongs to the LINQ to XML namespace ( System.Xml.Linq ), which was introduced in .NET Framework 3.5. On the other hand, XmlDocument belongs to the traditional XML processing namespace ( System.Xml ), available since earlier versions of the .NET Framework. Simplicity and ease of use : XDocument is generally considered to be more modern, flexible, and easier to work with compared to XmlDocument . It provides a more intuitive API based on LINQ (Language Integrated Query), allowing you to query, manipulate, and create XML data in a more straightforward and concise manner. Functionalities : XDocument supports various features like LINQ querying, functional construction, and functional updates. It also provides easier access to attributes and elements. On the other hand, XmlDocument provi

Choosing the Right Numeric Data Type in .NET: Exploring decimal, float, and double

  In .NET, decimal, float, and double are data types used to represent numbers with fractional parts. However, there are differences between them in terms of their precision, range, and intended usage. Here's an explanation of each type: decimal : The decimal type is a 128-bit data type specifically designed for financial and monetary calculations where precision is crucial. It offers a high level of precision, with 28-29 significant digits and a smaller range compared to float and double. Decimal is suitable for representing currency values, calculations involving money, or any scenario where accuracy is paramount. float : The float type is a 32-bit single-precision floating-point data type. It provides a larger range of values compared to decimal but sacrifices precision. It can store numbers with approximately 7 significant digits. Float is typically used when memory usage or performance is a concern, and the precision requirement is not as critical. It is commonly used in scien

Creating Excel Files in C# Without Microsoft Office: A Guide Using EPPlus Library

  To create an Excel (.XLS and .XLSX) file in C# without installing Microsoft Office, you can make use of third-party libraries that provide Excel manipulation capabilities. One popular library is EPPlus, which is a free open-source library for creating and manipulating Excel files in C#. Here's how you can use EPPlus to create an Excel file: Install EPPlus: Use NuGet Package Manager to install the EPPlus library into your C# project. You can do this by right-clicking on your project in Visual Studio, selecting "Manage NuGet Packages," and searching for "EPPlus" to install it. Import EPPlus namespace: In your C# code file, import the EPPlus namespace using the following statement: using OfficeOpenXml; Create a new Excel file and add data: Use the EPPlus library to create an Excel package, add worksheets, and populate them with data. Here's an example that creates a simple Excel file with a single worksheet and some data: // Create a new Excel package using