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Read CSV File in ASP.NET Core & Web Forms (C#, VB.NET)
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To read a CSV file in ASP.NET, accept the upload, parse it with a real CSV parser, validate each record, and show the rows in a ...
Merge Multiple PDF Files Into Single PDF Using Itextsharp in C#
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Introduction To merge multiple PDF files into one using iTextSharp in C#, you create a Document , attach a P...
How to Extract Tables from a PDF to Excel with Python (Camelot vs. pypdf)
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Copying a table out of a PDF and pasting it into Excel is slow, and it's easy to shift a column or drop a row without noticing. If ...
Secure JWT Authentication with HttpOnly Refresh Tokens in ASP.NET Core Web API
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The short answer: Don't store JSON Web Tokens (JWTs) in localStorage , because any JavaScript running on your page can read them. In AS...
Angular Signals vs. RxJS: Where Each One Belongs in Real-World Enterprise Apps
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The short answer: Use Angular Signals for synchronous state that a component owns and shows in its template, such as counters, toggles...
Upgrade to .NET 10 from .NET 8/9: Common Build Errors, Breaking Changes, and How to Fix Them
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The short answer: To upgrade to .NET 10 from .NET 8 or 9, install the .NET 10 SDK, change your target framework moniker (TFM) to net...
Migrate Roles to Policy-Based Authorization in ASP.NET Core
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Many ASP.NET Core projects start the same way. Someone adds [Authorize(Roles = "Admin")] to a controller, it works, and the team ...
C# Records vs Classes vs Structs: Which Should You Use?
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Every C# codebase eventually forces this decision: should this type be a class, a struct, or a record? The question looks trivial until...
ASP.NET Core Dependency Injection Interview Questions (30)
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Introduction If you're preparing for a .NET developer interview, dependency injection questions will come up — not as a formality,...
Razor Pages ASP.NET Core FAQ: 27 Beginner Questions
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Razor Pages in ASP.NET Core: What This FAQ Covers Razor Pages is a page-based way to build server-rendered web apps in ASP.NET Core. E...
Angular Change Detection Performance: OnPush and Signals
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If you're building an Angular front end that talks to an ASP.NET Core Web API, you've probably hit this wall: the API responds in 40...