SAHASRA TECHNOLOGIES
Beginner to intermediate curriculum · VB.NET & Legacy Microsoft ApplicationsVB.NET & Legacy Microsoft Applications
A focused legacy-maintenance track. C# remains the primary modern .NET language; VB.NET is included for students who may encounter existing Microsoft applications.
- Duration
- 14–18 classes
- Per class
- 90 minutes
Curriculum PDF: save the complete VB.NET & Legacy Microsoft Applications syllabus for offline reference.
Learning objective
Read common VB.NET syntax, follow application flow, debug existing code and make small safe changes.
Recommended class plan
14–18 classes · 90 minutes per class
2–3 classes per week
Technologies
- VB.NET
- .NET
- ADO.NET basics
Tools
- Visual Studio
- Debugger
- SQL Server
Curriculum modules
Basic Foundations → Practical Skills → Guided Application
- 1
VB.NET Syntax
Variables, types, conditions, loops, Functions, Subs and arrays.
- 2
Objects & Errors
Classes, objects, properties, OOP basics, collections and exception handling.
- 3
Legacy Application Flow
Database connectivity basics, reading existing code and comparing VB.NET with C#.
- 4
Maintenance Practice
Debug a small existing application and implement a controlled change.
Beginner topics
Start Here and Build Comfort
- VB.NET syntax
- Functions and Subs
- Arrays and collections
- Classes and objects
Intermediate topics
Progress After the Basics Are Clear
- Database connectivity basics
- Reading existing modules
- Debugging legacy code
- VB.NET-to-C# comparison
Practical learning
Practise, Submit, Build and Explain
Practical exercises
- Translate simple C# into VB.NET
- Trace an existing event handler
- Fix a database connection error
Assignments
- Document one legacy module
- Implement a validated maintenance change
Mini projects
- Legacy Employee Lookup Maintenance
Industry habits throughout the track
Terminology, Debugging and Responsible AI
Industry terminology
- Legacy application
- Code-behind
- Maintenance
- Regression
- Connection string
Debugging exercises
- Breakpoint through an event
- Investigate a Nothing reference
- Trace a failed SQL command
AI learning exercises
- Ask AI to compare equivalent C# and VB.NET code
- Use AI to explain unfamiliar legacy code, then verify it
Topics intentionally excluded
Advanced Topics Come Later
Quality fundamentals are more valuable than an overloaded syllabus. These topics are outside this track:
- New large VB.NET application design
- Advanced framework internals
- Complex migration projects
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