🎯 5 Essential Casting Techniques in C#

🎯 5 Essential Casting Techniques in C#

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📌 Why Casting Matters in C#

Casting allows you to convert one data type to another, helping you write flexible, reusable, and type-safe code. It's especially useful when dealing with base classes, interfaces, and general-purpose collections like List.

🚀 The 5 Must-Know Casting Techniques in C#

1. ✅ Explicit Casting (Manual Cast)

object obj = 123;
int x = (int)obj;

Use when you’re sure of the type. Throws an exception if it’s wrong.

2. ✅ Safe Casting using as

object obj = "hello";
string str = obj as string; // null if obj is not a string

Returns null instead of throwing exceptions. Works with reference types and nullable value types.

3. ✅ Pattern Matching with is

if (obj is int number)
{
    Console.WriteLine(number);
}

Safe and readable. Combines type check and casting.

4. ✅ Dynamic Casting

dynamic dyn = GetObject();
int x = dyn + 10;

Evaluates at runtime. Very flexible but can throw runtime exceptions if used carelessly.

5. ✅ Type Conversion using Convert Class

string input = "42";
int x = Convert.ToInt32(input);

Best for converting between strings, numbers, etc. May throw FormatException or OverflowException.

🎥 Watch the Tutorial

Learn all these techniques in detail with real-world examples in my full video:

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