Do you Need Live Online Training? Do you not have Time for Live Online? Do you Want to Start Immediately? Koenig's Flexi can help You.

Flexi is a Video Recording of Live Online + Official Courseware + Hands-On-Labs + Qubits Test

Flexi is a Unique Union of Live Online and On-Demand Learning Options.
Live Online
On Demand

C# Essentials

Includes 160+ Tests Questions (Qubits42)
Module 1: Introducing C# and the .NET Framework
  • Introduction to the .NET Framework
  • Creating Projects Within Visual Studio 2010
  • Writing a C# Application
  • Building a Graphical Application
  • Documenting an Application
  • Running and Debugging Applications by Using Visual Studio 2010
  • Introducing C# and the .NET Framework
  • Declaring Variables and Assigning Values
  • Using Expressions and Operators
  • Creating and Using Arrays
  • Using Decision Statements
  • Using Iteration Statements
  • Using C# Programming Constructs
  • Defining and Invoking Methods
  • Specifying Optional Parameters and Output Parameters
  • Declaring and Calling Methods
  • Handling Exceptions
  • Raising Exceptions
  • Handling Exceptions
  • Accessing the File System
  • Reading and Writing Files by Using Streams
  • Reading and Writing Files
  • Creating and Using Enumerations
  • Creating and Using Classes
  • Creating and Using Structs
  • Comparing References to Values
  • Creating New Types
  • Controlling Visibility of Type Members
  • Sharing Methods and Data
  • Encapsulating Data and Methods
  • Using Inheritance to Define New Reference Types
  • Defining and Implementing Interfaces
  • Defining Abstract Classes
  • Inheriting From Classes and Implementing Interfaces
  • Introduction to Garbage Collection
  • Managing Resources
  • Managing the Lifetime of Objects and Controlling Resources
  • Creating and Using Properties
  • Creating and Using Indexers
  • Overloading Operators
  • Creating and Using Properties
  • Creating and Using Indexers
  • Overloading Operators
  • Declaring and Using Delegates
  • Using Lambda Expressions
  • Handling Events
  • Decoupling Methods and Handling Events
  • Using Collections
  • Using Collections
  • Defining Generic Interfaces and Understanding Variance
  • Using Generic Methods and Delegates
  • Using Collections
  • Using Collections
  • Implementing a Custom Collection Class
  • Adding an Enumerator to a Custom Collection Class
  • Building and Enumerating Custom Collection Classes
  • Using the LINQ Extension Methods and Query Operators
  • Building Dynamic LINQ Queries and Expressions
  • Using LINQ to Query Data
  • Integrating C# Code with Ruby and Python
  • Accessing COM Components from C#
  • Integrating C# Code with Dynamic Languages and COM Components

We do not have a fresh Live Online Recording for the course. It can take 4-5 days to edit a recording. If your need is urgent, request for an un-edited version.

Flexi Video

USD 99

Official Courseware

USD 49


USD 59


USD 99

100% Secure Transaction


Q1. How long do you have access to Flexi after purchase?

A. 3 months from date of delivery.

Q2. Can the content be shared or is it only available for one user?

A. It is only for the self-use of the purchaser.

Q3. Do you have business packages that you offer to companies that would make use of these packages on a regular basis?

A. Yes, contact us for corporate packages.

Q4. What is the pass rate of students that used Flexi as their method of preparation?

A. We do not track the pass rate of Flexi students. We, however suspect that it will be lower than for Live Online.

Q5. If we buy Flexi today, and there are any updates in the course, do we get the updated recordings as well or do we need to repurchase Flexi?

A. If the latest update comes within 3 months after the sale we can give the updated version.

Q6. Can we download the videos or we stream them online?

A. Videos can only be streamed and not downloaded.

Q7. Do you have courses in languages other than English?

A. Presently Flexi is only available in English.

Feedbacks from Clients