C# Refresher

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C# refresher course is a practical 3-day training program designed for developers and IT professionals who want to review and strengthen their existing C# programming knowledge. Participants will revisit essential C# concepts while exploring object-oriented programming, collections, generics, LINQ, delegates, exception handling, asynchronous programming, and modern C# features. Through hands-on exercises and real-world development scenarios, learners can reinforce their skills, improve coding practices, and prepare for new C# development projects.

 

Duration 3 days – 21 hrs

 

Overview

 

The C# Refresher Course is a practical 3-day training program designed for developers and IT professionals who already have experience with C# and want to refresh, strengthen, and update their programming skills. The course provides a structured review of essential C# concepts while introducing advanced features and development practices that can help participants become more confident and effective when working on real-world applications.

Participants will revisit important topics such as C# syntax, data types, control structures, methods, object-oriented programming, collections, generics, and exception handling. The training also explores commonly used features such as LINQ, lambda expressions, delegates, events, asynchronous programming, and resource management, allowing learners to reinforce their existing knowledge while improving their understanding of modern C# development.

The C# Refresher Course combines instructor-led discussions, practical coding exercises, debugging activities, and real-world programming scenarios. Participants will have opportunities to apply concepts directly using Visual Studio, identify common coding issues, and practice writing cleaner, more efficient, and maintainable C# applications.

By the end of the training, participants will have a stronger command of essential and advanced C# concepts, improved confidence in developing and debugging applications, and a refreshed foundation for taking on new development projects, advanced C# training, or .NET application development tasks.

 

Learning Objectives

 

  • Revisit and understand the core concepts of C# programming.
  • Utilize advanced C# features and best practices.
  • Write efficient and maintainable C# code.
  • Implement object-oriented programming principles effectively.
  • Work with collections, generics, and LINQ for data manipulation.
  • Handle exceptions and manage resources properly.
  • Develop and debug C# applications using Visual Studio.

 

Audience

 

  • Developers with prior C# experience seeking a refresher.
  • Software engineers looking to reinforce their C# skills.
  • IT professionals transitioning to C# development.
  • Anyone preparing for advanced C# development projects.

 

Pre- requisites

  • Basic understanding of C# programming.
  • Familiarity with object-oriented programming concepts.
  • Experience with Visual Studio or similar IDEs.

 

Course Content

 

Module 1: Introduction and Core Concepts Review

  • Overview of C# and .NET
  • Key features of C#
  • Setting up the development environment
  • Writing and running basic C# programs

 

Module 2: Data Types and Variables

  • Value types and reference types
  • Declaring and initializing variables
  • Type conversion and casting
  • Working with strings and dates

 

Module 3: Control Structures

  • Conditional statements (if, else, switch)
  • Looping constructs (for, foreach, while, do-while)
  • Using break, continue, and goto
  • Exception handling with try, catch, finally

 

Module 4: Methods and Functions

  • Declaring and invoking methods
  • Method parameters and return types
  • Method overloading
  • Understanding ref and out parameters

 

Module 5: Object-Oriented Programming (OOP)

  • OOP principles (encapsulation, inheritance, polymorphism, abstraction)
  • Defining and using classes and objects
  • Constructors and destructors
  • Inheritance and method overriding
  • Abstract classes and interfaces

 

Module 6: Collections and Generics

  • Working with arrays and collections
  • Using List, Dictionary, Queue, and Stack
  • Introduction to generics
  • Using generic collections and methods

 

Module 7: LINQ (Language Integrated Query)

  • Introduction to LINQ
  • Writing LINQ queries
  • Using LINQ to Objects, LINQ to XML, and LINQ to SQL
  • Understanding lambda expressions

 

Module 8: Delegates and Events

  • Understanding delegates
  • Creating and using delegates
  • Events and event handling
  • Using built-in delegates (Func, Action, Predicate)

 

Module 9: Error Handling and Resource Management

  • Handling exceptions effectively
  • Custom exceptions
  • Using using statement for resource management
  • Implementing IDisposable interface

 

Module 10: Advanced C# Features

  • Working with anonymous methods and expressions
  • Understanding and using attributes
  • Exploring reflection and dynamic types
  • Asynchronous programming with async and await

 

Module 11: Working with Visual Studio

  • Overview of Visual Studio features
  • Using the debugger
  • Writing and running unit tests
  • Productivity tools and extensions

 

Module 12: Practical Exercises and Projects

  • Hands-on coding exercises
  • Real-world application development scenarios
  • Group projects and collaborative coding
  • Review and feedback on code

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  • Explain warehouse processes and their impact on inventory accuracy and service performance.
  • Evaluate warehouse layouts, storage systems, and product locations.
  • Identify appropriate controls for receiving, put-away, storage, picking, and dispatch.
  • Apply First-In, First-Out (FIFO) and First-Expired, First-Out (FEFO) principles.
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  • Identify causes of inventory discrepancies and recommend corrective actions.
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  • Interpret warehouse productivity and inventory performance KPIs.
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        Target Audience  
  • Warehouse supervisors, team leaders, and managers.
  • Inventory controllers and stock control personnel.
  • Logistics and distribution supervisors.
  • Internal auditors and operational compliance personnel.
  • Supply chain and operations professionals.
  • Personnel responsible for reviewing warehouse controls and performance.
  Prerequisites  
  • Basic familiarity with warehouse, logistics, or inventory activities.
  • General understanding of business processes and operational documentation.
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  • Basic spreadsheet skills are helpful.
  • No prior experience with a specific Warehouse Management System (WMS) is required.
   

Course Outline

  Day 1: Warehouse Processes, Layout, and Storage Controls Module 1: Warehouse Operations and Process Controls  
  • Warehouse roles within the supply chain.
  • End-to-end flow: receiving, put-away, storage, replenishment, picking, packing, and dispatch.
  • Physical stock movement and corresponding system transactions.
  • Responsibilities, authorization, and segregation of duties.
  • Common operational weaknesses and audit evidence.
  Module 2: Warehouse Layout and Storage Systems  
  • Functional zones, movement paths, and space utilization.
  • Receiving, storage, picking, staging, and dispatch areas.
  • Storage options: floor stacking, shelving, pallet racking, and bin storage.
  • Fixed and dynamic location systems.
  • Product slotting based on movement, size, handling needs, and compatibility.
  • Layout bottlenecks and their effects on productivity and inventory control.
  Module 3: Receiving and Put-Away  
  • Purchase orders, delivery documents, and expected receipts.
  • Quantity, condition, and item identification checks.
  • Recording shortages, overages, damage, and discrepancies.
  • Controls for acceptance, quarantine, and release.
  • Put-away rules and location confirmation.
  • Traceability through labels, barcodes, lot numbers, and serial numbers.
  • Timely recording of receipts and stock movements.
  Module 4: Storage, Stock Rotation, and Replenishment  
  • Storage discipline and location integrity.
  • FIFO and FEFO principles, applications, and limitations.
  • Batch, lot, and expiry-date management.
  • Controls for slow-moving, obsolete, damaged, and expired stock.
  • Replenishment of picking locations.
  • Supervision and review of stock rotation compliance.
    Day 2: Order Fulfillment and Inventory Accuracy Module 5: Picking Strategies and Order Fulfillment  
  • Discrete, batch, zone, and wave picking.
  • Selecting picking strategies for different order profiles.
  • Pick paths, location sequencing, and travel reduction.
  • Replenishment coordination and stock availability.
  • Picking verification and error prevention.
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  • Handling short picks, substitutions, cancellations, and returns.
  Module 6: Inventory Records and Accuracy Controls  
  • Item master data, units of measure, and location records.
  • On-hand, available, allocated, and quarantined stock.
  • Transaction controls for receipts, transfers, issues, returns, and adjustments.
  • Common causes of physical and system stock mismatches.
  • Barcode scanning and WMS control points.
  • Inventory reconciliation and supporting documentation.
  • Measuring inventory accuracy and interpreting discrepancies.
  Module 7: Cycle Counting and Physical Inventory  
  • Cycle counting versus full physical inventory.
  • ABC classification and risk-based count priorities.
  • Count frequency based on value, movement, and discrepancy history.
  • Count preparation, blind counting, and movement controls.
  • Recounts, variance investigation, and adjustment approval.
  • Root cause analysis and corrective action follow-up.
  • Reviewing the effectiveness of the counting program.
  Module 8: Shrinkage Reduction and Inventory Protection  
  • Sources of shrinkage: loss, damage, theft, misplacement, and recording errors.
  • Access controls and accountability for stock movements.
  • Controls for high-value and sensitive inventory.
  • Returns, write-offs, scrap, and disposal controls.
  • Exception reporting and unusual transaction patterns.
  • Investigating recurring losses and unexplained adjustments.
  • Preventive and detective controls for shrinkage reduction.
    Day 3: Performance Management, Process Review, and Improvement Module 9: Warehouse Productivity and Inventory KPIs  
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  • Put-away productivity and replenishment performance.
  • Picking productivity and order accuracy.
  • Inventory accuracy and cycle count variance.
  • Space utilization and storage capacity.
  • Shrinkage, damage, and expiry indicators.
  • Defining KPI formulas, data sources, and reporting boundaries.
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      Module 10: Supervising and Auditing Warehouse Processes  
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  • Reviewing approvals, access rights, and segregation of duties.
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  • Documenting findings with clear supporting evidence.
  • Prioritizing corrective actions and tracking closure.
  Module 11: Warehouse Improvement Planning  
  • Identifying bottlenecks, unnecessary movement, and rework.
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  • Standardizing transaction recording and exception handling.
  • Assigning improvement owners and measurable targets.
  • Monitoring results and sustaining operational improvements.
  Module 12: Capstone — Warehouse Operations and Inventory Improvement Plan  
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