Code Clinic: C#

Explore solutions to common C# programming challenges—and compare the results with other programming languages—in this installment of the Code Clinic series.

Introduction

• Welcome
• What you should know
• Exercise files
• Getting the most from Code Clinic

1. Problem 1: Pond Oreille

• Intro: The weather at Pond Oreille
• Solution overview
• Explore the data with Excel
• Explore the Visual Studio solution
• Create a new TryParse method
• Testing with sample data
• Filter data using LINQ
• Math.NET "linear" fit to find the slope
• Data visualization with LiveCharts
• Conclusion

2. Problem 2: Where Am I?

• Intro: Where am I?
• Solution overview
• Using the GeoCoordinateWatcher
• Sign up for Map Image REST API
• Call the Map Image REST API
• Conclusion

3. Problem 3: Eight Queens

• Intro: Eight queens
• Solution overview
• Eight queens test cases
• Check for attacks across rows
• Check for attacks on diagonals
• Find solutions with recursion
• Debug recursive calls
• Find all solutions
• Check "found" solutions against "known"
• Conclusion

4. Problem 4: Accessing Peripherals

• Intro: Accessing peripherals
• Solution overview
• Create WinForms project with NAudio
• Using class SignalGenerator
• Experiment with TrackBar controls
• Tracking MouseMove over a panel
• Calculate relative mouse movement
• Calculate changes in volume and frequency
• Conclusion

5. Problem 5: Facial Recognition

• Intro: Facial recognition
• Solution overview
• Create a prompt with arguments
• Using the API URL and API key
• Using class HttpWebRequest
• Parse JSON response with JArray
• Convert rectangles to polygons
• Using SharpImage method DrawPolygon
• Display output image
• Conclusion

6. Problem 6: Real-Time Information Dashboard

• Intro: Real-time information dashboard
• Solution overview
• NuGet and FactoryTelemetry
• LiveCharts AngularGauge XAML
• LiveCharts CartesianChart XAML
• Configuring data binding
• Load data into CharValues
• Data binding gauge to property
• X-axis label formatter
• Set up for a dynamic x-axis
• Calculating x-axis range dynamically
• Adding multiple line series
• Conclusion

Conclusion

• Next steps