FredGrit

2025年9月27日

WPF draw triangle, add right button contextmenu and menuitem method,save triangle as jpeg,via rendertargetment, DrawingContext StreamGeometry,StreamGeometryContext

摘要： private void SaveTriangleAsPicture() { if (triangle == null) { MessageBox.Show("No triangle to save!"); return; } try { SaveFileDialog dialog = new Sa 阅读全文

posted @ 2025-09-27 21:06 FredGrit 阅读(22) 评论(0) 推荐(0)

WPF draw triangle and add contextmenu, menuitem programmatically

摘要： private void DrawTriangleInCanvas() { try { triangle = new Polygon() { Stroke = Brushes.Black, StrokeThickness = 3, Fill = Brushes.Red }; double heigh 阅读全文

posted @ 2025-09-27 20:45 FredGrit 阅读(13) 评论(0) 推荐(0)

WPF Prism register interface and service, view and viewmodel, IRegionManager, RequestNavigate

摘要： Install-Package Prism.DryIOC; Install-Package Prism.Wpf;Install-Package Microsoft.Xaml.Behaviors.WPF; //App.xaml <prism:PrismApplication x:Class="WpfA 阅读全文

posted @ 2025-09-27 18:53 FredGrit 阅读(30) 评论(0) 推荐(0)

2025年9月26日

WPF canvas draw ellipse,rectangle, triangle when mouse down,mouse move and mouse up

摘要： //xaml <Window x:Class="WpfApp13.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/w 阅读全文

posted @ 2025-09-26 21:51 FredGrit 阅读(16) 评论(0) 推荐(0)

WPF ItemsControl implement Select in mvvm via behavior

摘要： <Window x:Class="WpfApp11.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/20 阅读全文

posted @ 2025-09-26 17:33 FredGrit 阅读(25) 评论(0) 推荐(0)

2025年9月25日

WPF Prism ioc implemented via Prism.DryIOC

摘要： Install-Package Prism.DryIOC; Install-Packag Prism.WPF; //App.xaml <prism:PrismApplication x:Class="WpfApp7.App" xmlns="http://schemas.microsoft.com/w 阅读全文

posted @ 2025-09-25 16:33 FredGrit 阅读(30) 评论(0) 推荐(0)

WPF ListBox VirtualizingPanel.CacheLengthUnit="Item" VirtualizingPanel.CacheLength="5,5"

摘要： Install-Package Microsoft.Extensions.DependencyInjection; Totally speaking, VirtualizationPanel.CacheLengthUnit's value is item and its performance is 阅读全文

posted @ 2025-09-25 12:49 FredGrit 阅读(13) 评论(0) 推荐(0)

2025年9月24日

WPF Datagrid loaded 79M items in mvvm , Microsoft.Extensions.DependencyInjection

摘要： Install-Package Microsoft.Extensions.DependencyInjection; public async Task InitBooksCollection() { stopwatch.Start(); BooksCollection = new Observabl 阅读全文

posted @ 2025-09-24 21:09 FredGrit 阅读(41) 评论(0) 推荐(0)

WPF Prism register interface and implemented interface service

摘要： Install-Package Prism.WPF; Install-Package Prism.DryIOC; //app.xaml <prism:PrismApplication x:Class="WpfApp4.App" xmlns="http://schemas.microsoft.com/ 阅读全文

posted @ 2025-09-24 18:41 FredGrit 阅读(17) 评论(0) 推荐(0)

2025年9月23日

WPF Prism PrismApplication OnInitialized()

摘要： Install-Package Prism.Wpf; Install-Package Prism.DryIOC; //app.xaml <prism:PrismApplication x:Class="WpfApp38.App" xmlns="http://schemas.microsoft.com 阅读全文

posted @ 2025-09-23 17:08 FredGrit 阅读(22) 评论(0) 推荐(0)

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