System.InvalidCastException In C#: Causes, Fixes, And Best Practices
System.InvalidCastException occurs when casting incompatible types. Use 'is' or 'as' for safe casting, validate types before casting, and leverage conversion APIs to avoid runtime errors.
Introduction Have you ever tried fitting a square peg into a round hole? That’s essentially what happens when a System.InvalidCastException occurs in C#. This runtime exception is thrown when you try to convert one type of object into another type that it cannot fit into. Let’s break it down with relatable examples and fixes that you’ll remember for life. What is System.InvalidCastException? This exception arises when a type conversion is invalid or impossible at runtime. It often happens when: Casting between unrelated types. Unboxing a value into an incompatible type. Casting obj...