c-sharp
C# programming language and .NET ecosystem
Fix slow WPF custom drawing in C# during panning and zooming with thousands of points/lines. Use DrawingVisual, StreamGeometry batching, viewport culling, freezing, and transforms to achieve WinForms/Qt speeds.
Learn how to test if an XElement contains an 'id' XML attribute in C# using element.Attribute('id') != null. Compare with alternatives like Attributes('id').Any() for reliable XML parsing in Visual Studio 2022 projects.
Learn how to create a custom ListBox in C# WinForms using Visual Studio 2022 for music players. Enable owner-drawn mode, handle DrawItem event, add MP3 metadata, album art, and selections beyond basic BackColor changes.
Step-by-step path for modernizing legacy WinForms apps on .NET Framework 3.5 with God Object code-behind. Upgrade to 4.8, implement MVP pattern, refactor, and migrate to modern .NET with risks and roadmap.
Learn how to reference Avalonia theme colors and brushes in XAML and code for custom UI elements. Use DynamicResource, TryGetResource, and ColorPaletteResources to match Fluent or Simple themes dynamically across light and dark variants.
Resolve System.IO.FileNotFoundException when using ScottPlot WpfPlotGL with .NET 10.0. Learn about OpenTK compatibility issues, assembly binding redirects, and step-by-step solutions for WPF plotting in C# on Windows 11.