FredGrit

2024年9月21日

WPF Combobox switch up and down then show the big picture in the right part

摘要： <ComboBox x:Name="cbx" Grid.Row="0" Grid.Column="0" SelectedIndex="0" ItemsSource="{StaticResource booksData}" FontSize="20" Foreground="Red" Vertical 阅读全文

posted @ 2024-09-21 17:41 FredGrit 阅读(40) 评论(0) 推荐(0)

WPF Combobox show Image and textblock via DataTemplate

摘要： <ComboBox Grid.Row="0" Grid.Column="0" SelectedIndex="0" ItemsSource="{StaticResource booksData}" FontSize="20" Foreground="Red" VerticalAlignment="St 阅读全文

posted @ 2024-09-21 16:56 FredGrit 阅读(40) 评论(0) 推荐(0)

WPF dynamically generate grid with calculated rows and columns, put the custom control in the specified cell of grid and never overlap or intersect

摘要： private void FillGridRandomly() { rowsColsSet = new HashSet<XY>(); if (gd != null) { gd.Children.Clear(); } for (int i = 0; i < 50; i++) { while (true 阅读全文

posted @ 2024-09-21 14:58 FredGrit 阅读(35) 评论(0) 推荐(0)

WPF Canvas show custom control with ellipse filled with image and text,peridoically update via System.Timers.Timer and toggle on pause resume via button

摘要： //custom control <UserControl x:Class="WpfApp389.ElpImageTbk" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schema 阅读全文

posted @ 2024-09-21 14:20 FredGrit 阅读(41) 评论(0) 推荐(0)

WPF ListBox ListBox.ItemTemplate DataTemplate Custom UserControl

摘要： <ListBox.ItemTemplate> <DataTemplate> <local:ImageTbk UCImgUrl="{Binding DataContext.ImgUrl, RelativeSource={RelativeSource Mode=FindAncestor,Ancestor 阅读全文

posted @ 2024-09-21 13:45 FredGrit 阅读(148) 评论(0) 推荐(0)

2024年9月20日

WPF ScrollViewer.IsDeferredScrollingEnabled is true can enhance the performance hugely when there is huge items and open virtualpanel

摘要： When an items control is using a virtualizing panel and it contains a large number of complex items, setting IsDeferredScrollingEnabled to true can re 阅读全文

posted @ 2024-09-20 17:31 FredGrit 阅读(50) 评论(0) 推荐(0)

WPF DataGrid ItemsSource StaticResource

摘要： //xaml <Window x:Class="WpfApp386.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/ 阅读全文

posted @ 2024-09-20 16:23 FredGrit 阅读(40) 评论(0) 推荐(0)

WPF data list acted as static resource

摘要： public class MyData : ObservableCollection<string> { public MyData() { for(int i=0;i<100000;i++) { Add($"{i+1}__{Guid.NewGuid().ToString("N")}"); } } 阅读全文

posted @ 2024-09-20 16:11 FredGrit 阅读(45) 评论(0) 推荐(0)

WPF behavior InvokeCommandAction CommadParameter pass selectedItem of currentcontrol

摘要： <ListBox x:Name="lbx" SelectedIndex="0" ItemsSource="{Binding BooksCollection,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" VirtualizingPanel.IsCo 阅读全文

posted @ 2024-09-20 11:46 FredGrit 阅读(60) 评论(0) 推荐(0)

WPF behavior InvokeCommandAction CommandParameter

摘要： <ListBox x:Name="lbx" SelectedIndex="0" ItemsSource="{Binding BooksCollection,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}" VirtualizingPanel.IsCo 阅读全文

posted @ 2024-09-20 11:38 FredGrit 阅读(67) 评论(0) 推荐(0)

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