FredGrit

2024年9月1日

C# convert sql blob type to plain string

摘要： Blob stands for binary large object byte[] bytesArr= (byte[])rows[i]["congest"]; bk.Congest = Encoding.UTF8.GetString(bytesArr) public static DataSet 阅读全文

posted @ 2024-09-01 23:24 FredGrit 阅读(47) 评论(0) 推荐(0)

WPF access mysql and pass data from datagrid to mysql

摘要： //sql drop database if exists mydb; create database mydb; use mydb; drop table if exists mt; create table mt (id int auto_increment primary key, name 阅读全文

posted @ 2024-09-01 16:10 FredGrit 阅读(46) 评论(0) 推荐(0)

C# split big file into small files as, and merge the small files into big one

摘要： namespace ConsoleApp59 { internal class Program { static string path = System.IO.Path.GetDirectoryName(System.Reflection.Assembly.GetExecutingAssembly 阅读全文

posted @ 2024-09-01 13:55 FredGrit 阅读(51) 评论(0) 推荐(0)

2024年8月30日

WPF DockPanel

摘要： <Window x:Class="WpfApp313.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2 阅读全文

posted @ 2024-08-30 17:41 FredGrit 阅读(28) 评论(0) 推荐(0)

WPF automatically generate shapes fill wrappanel

摘要： //customize control //xaml <UserControl x:Class="WpfApp309.RectTbk" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http:// 阅读全文

posted @ 2024-08-30 16:52 FredGrit 阅读(42) 评论(0) 推荐(0)

WPF automatically fill WrapPanel

摘要： //xaml <Window x:Class="WpfApp309.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/ 阅读全文

posted @ 2024-08-30 16:10 FredGrit 阅读(46) 评论(0) 推荐(0)

WPF mouse down on canvas and draw shapes which render with random colors

摘要： //custom control //xaml <UserControl x:Class="WpfApp307.ElpTbk" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://sche 阅读全文

posted @ 2024-08-30 15:22 FredGrit 阅读(35) 评论(0) 推荐(0)

WPF ItemsControl IsItemsHost true

摘要： //customzie control //xaml <UserControl x:Class="WpfApp306.ElpTbk" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://s 阅读全文

posted @ 2024-08-30 15:02 FredGrit 阅读(120) 评论(0) 推荐(0)

2024年8月29日

WPF Livecharts C# Column name change

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 @ 2024-08-29 15:18 FredGrit 阅读(61) 评论(0) 推荐(0)

2024年8月28日

WPF draw thumbs on livecharts and drag drop thumb

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 21:37 FredGrit 阅读(36) 评论(0) 推荐(0)

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