get property value from string using reflection

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## Getting Property Values from Strings Using Reflection in C#python
Reflection is a powerful feature in C# that allows you to inspect and manipulate types, fields, properties, methods, and events at runtime. This can be extremely useful when you need to work with objects where you don't know the exact type or the property names at compile time. One common use case is accessing a property value when you only have its name as a string.

This tutorial will guide you through the process of getting a property value from a string using reflection, covering various scenarios and providing code examples.

**1. Understanding the Core Concepts**

Before diving into the code, let's understand the core concepts involved:

* **`Type` Class:** The `Type` class represents a type declaration: a class type, an interface type, an array type, a value type, an enumeration type, a type parameter, a generic type definition, an open constructed generic type, a closed constructed generic type, or a composed generic type. You get a `Type` object for a class using `typeof(YourClass)` or `instance.GetType()`.

* **`PropertyInfo` Class:** The `PropertyInfo` class provides methods to discover properties of a type and to access property metadata. You get a `PropertyInfo` object by calling `Type.GetProperty(string propertyName)` or `Type.GetProperties()`.

* **`GetValue()` Method:** The `PropertyInfo.GetValue(object obj)` method retrieves the property's value for a specified object.

**2. Basic Example: Getting a Property Value by Name**

Let's start with a simple example of a class with a property and how to get its value using reflection:
**Explanation:**

1. **Get the `Type` object:** `person.GetType()` returns the `Type` object representing the `Person` class.
2. **Get the `PropertyInfo` object:** `personType.GetProperty(propertyName)` searches for a public property named `FirstName` in the `Person` class and returns a `PropertyInfo` object if found. If not found, it returns `null` ...

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