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In real-world applications like ERP, costing, or inventory systems, it's common to represent data in a pivot format—with rows turned into columns for better analysis. But here's the challenge: what happens when the column values (types) change over t...
৫০টি ফ্রি AI টুল — এখন কাজ হবে ১০ গুণ দ্রুত ও স্মার্টভাবে! 1. ChatGPT – যেকোনো লেখা বা প্রশ্নের উত্তর দিতে পারে।2. Canva AI – ডিজাইন তৈরি ও কনটেন্ট সাজাতে AI সহায়তা।3. Pictory – লেখা থেকে অটো ভিডিও তৈরি করে।4. Copy. ai – মার্কেটিং কপিরাইটিং বা ব্ল...
In C#, when working with a DataTable, you won’t get an exception from a for loop or foreach loop if the DataTable itself is not null but has no rows. However, if the DataTable is null, then trying to loop through it will throw a NullReferenceExceptio...
Secure your Blazor app with user login, role-based access, and protected routes. 1. Key Concepts Authentication: Verify user identity (e.g., login). Authorization: Control access to resources (e.g., admin-only pages). 2. Setup Authentication Ste...
Call JavaScript from C# and vice versa, use JS isolation, and integrate JS libraries. 1. Why JavaScript Interop? Access browser APIs (e.g., localStorage, geolocation). Use existing JavaScript libraries (e.g., charts, animations). Direct DOM manipu...
Learn to manage global state, persist data, and share state across components. 1. Types of State Component State: Local to a single component (e.g., @code block variables). App State: Shared across multiple components (e.g., user preferences, shopp...
Learn parent-child component communication, lifecycle methods, and cascading values. 1. Component Parameters Pass data from a parent component to a child component using parameters. Example: Parent ➔ Child Communication ParentComponent.razor @page "/...
The component lifecycle in Blazor defines a sequence of methods that are executed as a component is initialized, rendered, updated, and disposed. Understanding these lifecycle methods helps you manage data, handle events, and optimize performance in ...
Composition is a "has-a" relationship in object-oriented programming. It describes a relationship where one class contains an instance (or instances) of another class. Importantly, the lifetime of the contained objects depends on the lifetime of the ...