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c-sharp

C# programming language and .NET development

ProgrammingC# CPU & Disk Monitoring Without Polling PerformanceCounters

Event-driven C# CPU usage and disk space monitoring on Windows 10 using .NET EventCounters and WMI events like Win32_VolumeChangeEvent. Get 90% CPU threshold alerts without constant polling for efficient resource tracking.

5 answers• 1 view
ProgrammingHow to Replace Line Breaks (\r\n, \n) in C# Strings

Learn to replace newlines like \r\n or \n in C# strings using ReplaceLineEndings, Regex.Replace, or chained methods. Handle cross-platform text from files or APIs with code examples and pitfalls.

6 answers• 1 view
ProgrammingCopy Entire Directory in C# with System.IO No Hacks

Learn to copy files, folders, and entire directories recursively or non-recursively in C# using pure System.IO. Efficient code examples avoid VB hacks, handle overwrites, and work cross-platform in .NET 8/9.

1 answer• 1 view
ProgrammingHow to Install Local .nupkg Files in Visual Studio

Learn how to install local .nupkg NuGet packages in Visual Studio for C# projects. Fix why they don't show in Add Library Package Reference and use folder sources, console, or CLI methods effectively.

1 answer• 1 view
ProgrammingIgnore Deserialization Errors in System.Text.Json

Learn to handle malformed JSON in System.Text.Json JsonSerializer.Deserialize by ignoring errors like unclosed braces or bad quotes. Use custom JsonConverters, JsonSerializerOptions, and preprocessing for tolerant deserialization like Newtonsoft.Json.

1 answer• 1 view
ProgrammingSystem.Timers.Timer vs System.Threading.Timer for .NET Games

Compare System.Timers.Timer vs System.Threading.Timer for .NET game apps with multiple timers and thread pooling. Discover why Threading.Timer offers better performance, lower overhead, and scalability for game development.

1 answer• 2 views
DatabasesCosmos DB DeleteItemAsync 404: Partition Key Fix

Fix Azure Cosmos DB DeleteItemAsync returning 404 Resource Not Found despite successful queries. Learn partition key mismatches, query projections, C# SDK fixes, and verification steps for iothub container deletes by date range.

1 answer• 1 view
ProgrammingHow to Parse Invalid XHTML with HTMLAgilityPack C#

Learn to use HTMLAgilityPack C# for parsing invalid XHTML. Basic steps include installing via NuGet, loading malformed HTML with LoadHtml, querying via XPath or LINQ, and handling parse errors with code examples for web scraping.

1 answer• 1 view
ProgrammingOptimize WPF Drawing for Fast Panning/Zooming Large Datasets

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.

1 answer• 1 view
ProgrammingCheck if XElement Has ID XML Attribute in C# Visual Studio

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.

1 answer• 1 view
ProgrammingCustom ListBox in C# WinForms: Owner-Drawn Guide

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.

1 answer• 1 view
ProgrammingWinForms Modernization: .NET Migration & MVP Guide

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.

1 answer• 1 view
ProgrammingUsing Avalonia Theme Colors and Brushes for Custom UI

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.

1 answer• 1 view
ProgrammingFix ScottPlot WpfPlotGL FileNotFoundException in .NET 10.0

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.

1 answer• 1 view