Скачать или смотреть Simplify Your LINQ Queries with a Generic Method

Discover how to optimize your `LINQ` queries by merging multiple conditional checks into a single, cleaner solution. Improve readability and maintainability of your code!
---
This video is based on the question https://stackoverflow.com/q/63374767/ asked by the user 'Sushma Chaudhary' ( https://stackoverflow.com/u/14092475/ ) and on the answer https://stackoverflow.com/a/63377919/ provided by the user 'Mong Zhu' ( https://stackoverflow.com/u/5174469/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Linq if else condition

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Simplify Your LINQ Queries with a Generic Method

When writing LINQ queries in C# , managing complex filtering can quickly become cumbersome. As code complexity grows, so does the potential for errors and maintenance challenges. One common problem developers face is the need for multiple if statements to apply different filters based on certain conditions. This not only makes the code lengthy but also harder to read.

In today’s guide, we’ll address a practical scenario where we can simplify your LINQ queries by merging conditional checks into a single, concise solution using a generic method. Let’s dive into the existing problem and see how we can optimize it!

The Initial Problem

Consider the following LINQ query structure:

[[See Video to Reveal this Text or Code Snippet]]

The Challenge

As you can see, the above logic involves multiple if statements that can make the code not only longer but also harder to manage. To effectively reduce this complexity, we can extract the logic into a generic method that can handle the filtering and the wildcard condition seamlessly.

The Solution: A Generic Method

Here’s how we can simplify the logic using a generic method. The idea is to create a method that takes in:

A selector function to specify which property to filter on

The value to compare against

The wild card value

Step 1: Define the Generic Method

We can define a method called EitherFilterOrWildCard as follows:

[[See Video to Reveal this Text or Code Snippet]]

Step 2: Refactor Original Queries

Now, instead of writing lengthy if statements, we can achieve the same filtering with just two lines of code:

[[See Video to Reveal this Text or Code Snippet]]

Benefits of This Approach

By implementing this change, you can optimize your LINQ queries for several reasons:

Improved Readability: Less code complexity makes it easier for you or others to understand the logic at a glance.

Reusable Code: The generic method can be reused across different parts of your application, reducing code duplication.

Maintainability: Changes can be made in one place, making future updates easy and efficient.

Conclusion

Transforming your LINQ queries from lengthy conditional checks to a streamlined solution can significantly enhance the quality of your code. The use of a generic method not only makes the code shorter but also improves its readability and maintainability.

Start applying this method to your LINQ queries today and see how much simpler your code can become! Happy coding!