FredGrit

2025年10月12日

C# console get current screen DPI from user32.dll and gdi32.dll

摘要： using System.Runtime.InteropServices; namespace ConsoleApp24 { internal class Program { [DllImport("user32.dll")] static extern bool SetProcessDPIAwar 阅读全文

posted @ 2025-10-12 16:55 FredGrit 阅读(7) 评论(0) 推荐(0)

C# OpenCVSharp4 draw mask on picture with specified x, y, width and height

摘要： Install-Package OpenCVSharp4; Install-Package OpenCVSharp4.runtime.win; //csproj file <Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <OutputType>Ex 阅读全文

posted @ 2025-10-12 16:41 FredGrit 阅读(5) 评论(0) 推荐(0)

C# OpenCVSharp4 Blur

摘要： Install-Package OpencvSharp4; Install-Package OpenCVSharp4.runtime.win; //Update csproj file <Project Sdk="Microsoft.NET.Sdk"> <PropertyGroup> <Output 阅读全文

posted @ 2025-10-12 15:54 FredGrit 阅读(7) 评论(0) 推荐(0)

C# NUnit

摘要： Install-Package NUnit; Install-Package NUnit3TestAdapter; Install-Package Microsoft.Net.Test.Sdk; Install-Package Moq; using Moq; using NUnit.Framewor 阅读全文

posted @ 2025-10-12 14:33 FredGrit 阅读(7) 评论(0) 推荐(0)

2025年10月11日

C# send and receive via Tcp TcpClient

摘要： //Sender using System.Net.Sockets; using System.Security.AccessControl; namespace ConsoleApp18 { internal class Program { static async Task Main(strin 阅读全文

posted @ 2025-10-11 17:42 FredGrit 阅读(12) 评论(0) 推荐(0)

C# Send and receive big file via stream

摘要： //sender; class FileSender { private readonly HttpClient _httpClient; public FileSender() { _httpClient = new HttpClient { Timeout = TimeSpan.FromHour 阅读全文

posted @ 2025-10-11 14:10 FredGrit 阅读(5) 评论(0) 推荐(0)

2025年10月9日

WPF mvvm datagrid export as pdf via iTextSharp

摘要： Install-Package iTextSharp; public ICommand ExportAsPDFCommand { get; private set; } ExportAsPDFCommand = new DelCommand(async (obj) => await ExportAs 阅读全文

posted @ 2025-10-09 21:32 FredGrit 阅读(8) 评论(0) 推荐(0)

WPF Epplus export 10M+ items in excel with multiple sheets batch by batch

摘要： Install-Package Epplus; private async Task ExportAsExcelCommandExecuted(object? obj) { try { await PopulateStatusMsg($"Start exporting"); exportedIdx 阅读全文

posted @ 2025-10-09 19:49 FredGrit 阅读(8) 评论(0) 推荐(0)

2025年10月8日

C# access mysql and retrieve data via dapper batch by batch

摘要： Install-Package Mysql.Data; Install-Package Dapper; using Dapper; using MySql.Data.MySqlClient; using System.Data; using System.Diagnostics; namespace 阅读全文

posted @ 2025-10-08 21:30 FredGrit 阅读(7) 评论(0) 推荐(0)

WPF Prism IRegionManager, IContainerRegistry implements IOC, IModule implements module management,IEventAggregator implements message broadcast via Publish,Subscribe,PubSubEvent<T>

摘要： //Install-Package for the whole solution Get-Project -All | Install-Package Prism.Wpf; Get-Project -All | Install-Pacjage Prism.DryIoc; The whole stru 阅读全文

posted @ 2025-10-08 17:02 FredGrit 阅读(9) 评论(0) 推荐(0)

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