FredGrit

2024年9月20日

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(41) 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(62) 评论(0) 推荐(0)

WPF behavior InvokeCommndAction PassEventArgsToCommand

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

posted @ 2024-09-20 11:31 FredGrit 阅读(48) 评论(0) 推荐(0)

2024年9月19日

WPF System.Windows.Media.Color A value must be set, display ball and number in canvas ,mouse down to refresh

摘要： private Color GetRndColor() { Color cr = new Color(); cr.A = 255; cr.R = (byte)(rnd.Next(0, 255)); cr.G = (byte)(rnd.Next(0, 255)); cr.B = (byte)(rnd. 阅读全文

posted @ 2024-09-19 22:21 FredGrit 阅读(82) 评论(0) 推荐(0)

WPF Customcontrol with ellipse and textblock display randomly in canvas of mainwindow

摘要： //usercontrol.xaml <UserControl x:Class="WpfApp381.ElpImgTbk" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schema 阅读全文

posted @ 2024-09-19 21:55 FredGrit 阅读(44) 评论(0) 推荐(0)

WPF Element Width Height is percent of Parent element via converter ,converterparameter

摘要： //converter using System; using System.Collections.Generic; using System.Globalization; using System.Linq; using System.Text; using System.Threading.T 阅读全文

posted @ 2024-09-19 21:18 FredGrit 阅读(44) 评论(0) 推荐(0)

2024年9月18日

WPF MvvmLight Register,Send,Unregister

摘要： //Register Messenger.Default.Register<object>(this, "ShowItemsCountToken", ShowItemsCount); //Send Messenger.Default.Send<object>(obj, "ShowItemsCount 阅读全文

posted @ 2024-09-18 22:18 FredGrit 阅读(53) 评论(0) 推荐(0)

WPF ListBox ContextMenu MenuItem Command CommandParameter Path PlacementTarget

摘要： <ListBox.ContextMenu> <ContextMenu> <MenuItem Header="Export NewtonSoftJson" FontSize="50" Foreground="Red" Command="{Binding ExportNewtonJsonCmd}" Co 阅读全文

posted @ 2024-09-18 21:44 FredGrit 阅读(37) 评论(0) 推荐(0)

WPF ListBox ListBox use UserControl

摘要： //usercontrol xaml <UserControl x:Class="WpfApp379.ImgTbk" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.m 阅读全文

posted @ 2024-09-18 21:35 FredGrit 阅读(42) 评论(0) 推荐(0)

WPF Expander ExpandDirection Left,Right,Up,Down,IsExpanded property,Expanded and Collapsed event

摘要： //xaml <Window x:Class="WpfApp378.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/ 阅读全文

posted @ 2024-09-18 19:53 FredGrit 阅读(40) 评论(0) 推荐(0)

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