Skill Topic · Cinematic

📘 ASP.NET — Dependency Injection (DI)

DI = objects khud mat banao, framework se maango! 💉

Overview

📘 ASP.NET — Dependency Injection (DI) — Quick Facts

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"new Service()": B["Concrete Service"]

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B -->: "new Repo()"

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D["Controller"] -->: "IService"

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E -->: "injects"

Topic 1

📌 1. DI Kya Hai?

📚 🎯 Real-World Analogy — Restaurant Kitchen Staff 👨‍🍳 Dependency Injection = restaurant…

Topic 2

📌 2. DI Flow in ASP.NET Core

💡 🎯 Analogy — Hotel Room Service 🏨 DI Container = hotel ka room service system: 1. Hotel…

Topic 3

📌 3. Service Lifetimes

🎯 🎯 Analogy — Water Supply Types 🚰 - Transient = mineral water bottle — har baar nayi…

Topic 4

📌 4. Step-by-Step Implementation

⭐ Step 1: Interface Define Karo `csharp // ═══ Interfaces/IStudentService.cs ═══ //…

Topic 5

📌 5. Multiple Implementations

🔑 🎯 Analogy — Multiple Delivery Services 📦 - 1 interface = "deliver karo" - Multiple…

Topic 6

📌 6. DI Injection Methods

✨ 🎯 4 Ways to Inject `csharp // ═══ 1. Constructor Injection (RECOMMENDED ✅) ═══ // Sabse…

Topic 7

📌 7. Registering Groups of Services

🌟 🎯 Analogy — Organized Menu Categories 📋 Extension methods = menu ko categories me…

Topic 8

📌 8. Built-in Services & Options Pattern

🚀 Built-in Services Reference | Service | Purpose | Example |…

Topic 9

⚠️ Common Mistakes

📚 | # | Galti | Kya hota hai | Sahi tareeqa | |---|-------|-------------|--------------| |…

Topic 10

🏋️ Practice

💡 Exercise 1: Basic DI Setup (Beginner) Task: DI fundamentals practice karo -…

Topic 11

✅ Summary

🎯 🔑 Key Points: - DI = Restaurant Kitchen Staff — dependencies inject karo, khud mat banao…

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quick Quiz

Quiz — Question 1

📘 ASP.NET — Dependency Injection (DI) ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

📘 ASP.NET — Dependency Injection (DI) ka 'B -->' kya hai?

Complete! 🎉

📘 ASP.NET — Dependency Injection (DI) Complete!

Aliens School · HIEN · Cinematic Knowledge

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