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Founded by passionate advocates of learning and innovation, Learni set out to make professional training accessible to everyone, everywhere in the world. Our team works in the largest cities such as Paris, Lyon, Marseille, and internationally, to support talents and organizations in their skills development.
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30 free minutes with a training advisor — no commitment.
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Discover step-by-step methods to master bookkeeping and accounting fundamentals in April 2026. Explore online courses, tools, practice tips, and future trends like AI integration for aspiring professionals.
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Don't let this gap widen
Without this training, your C# code risks time-consuming bugs: 40% of dev time lost to debugging according to Stack Overflow, unhandled exceptions causing 25% of production crashes (Microsoft report).
Lose contracts to competitors fluent in async/LINQ, multiply overtime on mediocre performance, stagnate in your career while 70% of advanced .NET devs earn +20% salary (Glassdoor).
Avoid costly rewrites at 10k€/project, train to code robustly and deliver 2x faster.
The Training C# Intermediate - Master Advanced OOP and LINQ training is delivered in-person or remotely (blended-learning, e-learning, virtual classroom, remote in-person). At Learni, a Qualiopi-certified training organization, each program is designed to maximize skills acquisition, regardless of the training mode chosen.
The trainer alternates between demonstrative, interrogative, and active methods (through practical exercises and/or real-world scenarios). This pedagogical approach ensures concrete and directly applicable learning in the workplace.
To ensure the quality of the Training C# Intermediate - Master Advanced OOP and LINQ training, Learni provides the following teaching resources:
For in-house training at a location external to Learni, the client ensures and commits to having all necessary teaching materials (IT equipment, internet connection...) for the proper conduct of the training action in accordance with the prerequisites indicated in the communicated training program.
The assessment of skills acquired during the Training C# Intermediate - Master Advanced OOP and LINQ training is carried out through:
Learni is committed to the accessibility of its professional training programs. All our training programs are accessible to people with disabilities. Our teams are available to adapt teaching methods to your specific needs. Do not hesitate to contact us for any accommodation request.
Learni training programs are available for inter-company and intra-company settings, both in-person and remote. Registration is possible up to 48 business hours before the start of training. Our programs are eligible for OPCO, Pôle emploi, and FNE-Formation funding. Contact us to discuss your training project and funding possibilities.
Dive into advanced OOP mechanisms in C#, model abstract classes and interfaces using Visual Studio, complete exercises on simulated multiple inheritance, create practical UML diagrams, to design solid architectures that will boost your projects starting tomorrow.
Anticipate and track errors with advanced try-catch, implement a custom logging system, use Visual Studio breakpoints and watches on real failing app cases, to deliver reliable code that avoids costly production outages.
Transform your data in the blink of an eye with LINQ, chain queries on collections, integrate Entity Framework for smooth SQL databases, test on concrete datasets like e-commerce sales, and save hours with intelligent processing that will impress your teams.
Make your apps ultra-responsive by mastering async/await and Tasks, simulate asynchronous API calls, manage threading without blocking, apply to a smooth user interface case, for performance that triples customer satisfaction.
Synthesize everything by refactoring a complete project with patterns like Singleton or Factory, integrate unit tests via MSTest, optimize for scalability, deliver a ready-to-use portfolio app, and leave certified with skills that open doors.
Target audience
Junior .NET developers, beginner C# programmers, software engineers upskilling.
Prerequisites
Basic knowledge of C#, object-oriented programming, use of Visual Studio.
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