FredGrit

2024年8月28日

WPF thumb Drag DragDelta,DragStarted,DragCompleted

摘要： //xaml <Window x:Class="WpfApp302.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/ 阅读全文

posted @ 2024-08-28 18:05 FredGrit 阅读(50) 评论(0) 推荐(0)

WPF LiveCharts.Wpf

摘要： //xaml <Window x:Class="WpfApp299.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/ 阅读全文

posted @ 2024-08-28 16:37 FredGrit 阅读(94) 评论(0) 推荐(0)

WPF Canvas mouse move event implement drag function

摘要： using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System 阅读全文

posted @ 2024-08-28 15:44 FredGrit 阅读(33) 评论(0) 推荐(0)

WPF C# Task run method System.InvalidOperationException: 'The calling thread must be STA, because many UI components require this.'

摘要： Task.Run(() => { InitData(); }); The calling thread must be STA, because many UI components require this. The solution is make sure current method in 阅读全文

posted @ 2024-08-28 14:32 FredGrit 阅读(61) 评论(0) 推荐(0)

2024年8月27日

C# reflection pros and cons

摘要： Copy from https://www.erikzhou.com/blogs/reflection_in_csharp/ Pros and Cons of Reflection Reflection is a powerful tool, but it comes with its own se 阅读全文

posted @ 2024-08-27 18:51 FredGrit 阅读(55) 评论(0) 推荐(0)

C# reflection slower 2.19X+ than direct

摘要： using System.Diagnostics; using System.IO; using System.Reflection; using System.Text; namespace ConsoleApp58 { internal class Program { static List<B 阅读全文

posted @ 2024-08-27 18:38 FredGrit 阅读(32) 评论(0) 推荐(0)

C# yield keyword relieve congest and consume at the same time with produce

摘要： using System.Threading; namespace ConsoleApp57 { internal class Program { static void Main(string[] args) { PrintNumers(); Console.WriteLine("Hello, W 阅读全文

posted @ 2024-08-27 17:54 FredGrit 阅读(41) 评论(0) 推荐(0)

C# generate thumbnailimage via System.Drawing

摘要： using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows; using System 阅读全文

posted @ 2024-08-27 17:25 FredGrit 阅读(50) 评论(0) 推荐(0)

C# COM interact with Excel via Com Microsoft.Office.Interop.Excel,write content to sheet cell

摘要： 1.Add Com Reference,Microsoft.Office.Interop.Excel 2. using Microsoft.Office.Interop.Excel; using System; using System.IO; using System.Runtime.Compil 阅读全文

posted @ 2024-08-27 16:27 FredGrit 阅读(47) 评论(0) 推荐(0)

C# BinaryFormatter Serialize and Deserialize

摘要： using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Runtime.Serialization.Formatters.Binary; using System 阅读全文

posted @ 2024-08-27 15:32 FredGrit 阅读(42) 评论(0) 推荐(0)

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