How Can I Dynamically Retrieve Property Values in C# by Name?

Property Value Retrieval by Name

An object's property values can be accessed by their respective names, enabling programmatic manipulation and retrieval of data. In certain scenarios, it's desirable to retrieve property values dynamically based on variable property names. This question explores a method to achieve such a functionality.

Method:

The following C# method leverages reflection to obtain the property value of an object based on a specified property name:

public string GetPropertyValue(object obj, string propertyName)
{
    return obj.GetType().GetProperty(propertyName).GetValue(obj, null);
}

Usage:

To retrieve the value of the "Make" property from the "car" object:

string make = GetPropertyValue(car, "Make");

Implementation:

The method works as follows:

1. Determine Property Info: Using the GetProperty method on the object's type, the property's metadata is obtained.
2. Retrieve Property Value: The GetValue method is called on the property info to extract the actual value.
3. Specify Default Parameters: The null parameter in GetValue indicates that the property is accessed directly on the object, without passing any parameter.

Additional Points:

• This method works for both public and private properties, provided they have getters.
• Reflection can impact performance, so use it judiciously for optimal efficiency.
• For more complex scenarios, custom implementations can be created to handle property types, inheritance, etc.

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