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NetStatusSharp

中文说明

NetStatusSharp is a lightweight Windows network connection monitor for inspecting and filtering local IPv4 and IPv6 TCP and UDP connections by process.

NetStatusSharp light interface

Features

  • View process name, PID, address family, local endpoint, remote endpoint, and TCP state
  • Filter by process name, PID, local port, remote port, protocol, IP version, and TCP state
  • IPv6 endpoints are shown as [address]:port, and the IP column distinguishes IPv4 from IPv6
  • Light, high-DPI WPF interface with row virtualization, column sorting, and multi-row copy
  • Column headers show ascending and descending sort indicators, and columns can be resized by dragging
  • Column widths are remembered and restored on the next launch (%APPDATA%\NetStatusSharp\layout.json)
  • Asynchronous, cancellable refreshes that keep the interface responsive
  • The refresh button turns into "stop" in place while a scan runs, so the header area never flickers
  • Resolve each PID only once per refresh and filter connections before loading process metadata
  • Optional five-second automatic refresh with result count, duration, and update time

Keyboard shortcuts

  • F5: refresh
  • Enter: apply text-box filters
  • Esc: cancel the active refresh
  • Ctrl+L: clear filters
  • Ctrl+C: copy selected connections

Solution layout

  • NetStatusSharp/: .NET 8 WPF application, MVVM, theme, and connection query service
  • NetStatusAPI/: wrapper for the native Windows TCP and UDP connection tables
  • NetStatusSharp.sln: Visual Studio solution

Technical details

  • Target framework: .NET 8 (net8.0-windows)
  • UI: WPF
  • Native APIs: GetExtendedTcpTable and GetExtendedUdpTable, including AF_INET6
  • Current connection scope: IPv4 and IPv6
  • Platform: Windows 10 or later

Build and run

Use Visual Studio 2022 with the .NET desktop development workload or the .NET 8 SDK.

dotnet build .\NetStatusSharp.sln -c Release
dotnet run --project .\NetStatusSharp\NetStatusSharp.csproj -c Release

The regular build requires the .NET 8 Desktop Runtime. To create a self-contained single-file build:

dotnet publish .\NetStatusSharp\NetStatusSharp.csproj -c Release -r win-x64 --self-contained true -p:PublishSingleFile=true -p:IncludeNativeLibrariesForSelfExtract=true

The GitHub Release workflow automatically creates a self-contained win-x64 archive.

License

This project is licensed under the Selective Freedom License (SFL) v1.0. See the LICENSE file.