回答編集履歴
2
見直しキャンペーン中
test
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`ControlStoryboardAction`を`DataTrigger`でキックすればいいでしょう。
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[ControlStoryboardAction · microsoft/XamlBehaviorsWpf Wiki](https://github.com/microsoft/XamlBehaviorsWpf/wiki/ControlStoryboardAction)
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を`DataTrigger`でキックすればいいでしょう。
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VMからどう動かすかわからないので、雑にタイマーでランダムに動かしました。
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データの持ち方(`HorizontalAlignment`等)はご一考ください。
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見直しキャンペーン中
test
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[ControlStoryboardAction · microsoft/XamlBehaviorsWpf Wiki](https://github.com/microsoft/XamlBehaviorsWpf/wiki/ControlStoryboardAction)
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を`DataTrigger`でキックすればいいでしょう。
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VMからどう動かすかわからないので、雑にタイマーでランダムに動かしました。
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データの持ち方(`HorizontalAlignment`等)はご一考ください。
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VMからどう動かすかわからないので、雑にタイマーでランダムに動かしました。
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データの持ち方(HorizontalAlignment等)はご一考ください。
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```x
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```xml
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<Window
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x:Class="Questions300617.Views.MainWindow"
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xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
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xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
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xmlns:behaviors="http://schemas.microsoft.com/xaml/behaviors"
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xmlns:l="http://schemas.livet-mvvm.net/2011/wpf"
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xmlns:vm="clr-namespace:Questions300617.ViewModels"
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Width="500"
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Height="150">
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<Window.DataContext>
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<vm:MainWindowViewModel />
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</Window.DataContext>
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<Window.Resources>
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<Storyboard x:Key="LR1">
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<DoubleAnimation
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Storyboard.TargetName="rect"
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Storyboard.TargetProperty="(Canvas.Left)"
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To="10"
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Duration="0:0:0.5" />
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</Storyboard>
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<Storyboard x:Key="LR2">
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<DoubleAnimation
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Storyboard.TargetName="rect"
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Storyboard.TargetProperty="(Canvas.Left)"
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To="70"
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Duration="0:0:0.5" />
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</Storyboard>
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<Storyboard x:Key="LR3">
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<DoubleAnimation
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Storyboard.TargetName="rect"
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Storyboard.TargetProperty="(Canvas.Left)"
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To="130"
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Duration="0:0:0.5" />
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</Storyboard>
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<Storyboard x:Key="UD1">
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<DoubleAnimation
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Storyboard.TargetName="rect"
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Storyboard.TargetProperty="(Canvas.Top)"
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To="20"
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Duration="0:0:0.5" />
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</Storyboard>
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<Storyboard x:Key="UD2">
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<DoubleAnimation
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Storyboard.TargetName="rect"
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Storyboard.TargetProperty="(Canvas.Top)"
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To="40"
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Duration="0:0:0.5" />
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</Storyboard>
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<Storyboard x:Key="UD3">
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<DoubleAnimation
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Storyboard.TargetName="rect"
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Storyboard.TargetProperty="(Canvas.Top)"
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To="60"
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Duration="0:0:0.5" />
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</Storyboard>
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</Window.Resources>
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<behaviors:Interaction.Triggers>
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<behaviors:EventTrigger EventName="ContentRendered">
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<l:LivetCallMethodAction MethodName="Initialize" MethodTarget="{Binding}" />
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</behaviors:EventTrigger>
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<behaviors:EventTrigger EventName="Closed">
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<l:DataContextDisposeAction />
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</behaviors:EventTrigger>
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<behaviors:EventTrigger EventName="Closed">
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<l:DataContextDisposeAction />
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</behaviors:EventTrigger>
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<behaviors:DataTrigger Binding="{Binding HorizontalAlignment}" Value="Left">
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource LR1}" />
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</behaviors:DataTrigger>
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<behaviors:DataTrigger Binding="{Binding HorizontalAlignment}" Value="Center">
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource LR2}" />
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</behaviors:DataTrigger>
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<behaviors:DataTrigger Binding="{Binding HorizontalAlignment}" Value="Right">
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource LR3}" />
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</behaviors:DataTrigger>
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<behaviors:DataTrigger Binding="{Binding
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<behaviors:DataTrigger Binding="{Binding VerticalAlignment}" Value="Top">
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource UD1}" />
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</behaviors:DataTrigger>
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<behaviors:DataTrigger Binding="{Binding
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<behaviors:DataTrigger Binding="{Binding VerticalAlignment}" Value="Center">
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource UD2}" />
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</behaviors:DataTrigger>
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<behaviors:DataTrigger Binding="{Binding VerticalAlignment}" Value="
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<behaviors:DataTrigger Binding="{Binding VerticalAlignment}" Value="Bottom">
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource UD
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource UD3}" />
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</behaviors:DataTrigger>
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<behaviors:DataTrigger Binding="{Binding VerticalAlignment}" Value="Center">
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource UD2}" />
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</behaviors:DataTrigger>
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<behaviors:DataTrigger Binding="{Binding VerticalAlignment}" Value="Bottom">
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<behaviors:ControlStoryboardAction Storyboard="{StaticResource UD3}" />
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</behaviors:DataTrigger>
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</behaviors:Interaction.Triggers>
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<Grid>
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<Canvas>
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<Rectangle
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x:Name="rect"
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Canvas.Left="10"
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Canvas.Top="20"
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Width="40"
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Height="20"
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Fill="LightBlue"
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Stroke="DarkGray"
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StrokeThickness="2" />
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</Canvas>
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</Grid>
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</Window>
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```
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```
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```cs
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using System;
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using System.Windows;
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using System.Windows.Threading;
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using Livet;
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namespace Questions300617.ViewModels
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{
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public class MainWindowViewModel : ViewModel
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{
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private readonly Random random = new Random();
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private DispatcherTimer timer;
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private HorizontalAlignment _HorizontalAlignment;
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public HorizontalAlignment HorizontalAlignment
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{
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get => _HorizontalAlignment;
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set => RaisePropertyChangedIfSet(ref _HorizontalAlignment, value);
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}
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private VerticalAlignment _VerticalAlignment;
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public VerticalAlignment VerticalAlignment
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{
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get => _VerticalAlignment;
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set => RaisePropertyChangedIfSet(ref _VerticalAlignment, value);
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}
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public void Initialize()
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{
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timer = new DispatcherTimer { Interval = TimeSpan.FromSeconds(1), };
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timer.Tick += (s, e) =>
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{
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if(random.Next(2) == 0)
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{
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HorizontalAlignment = (HorizontalAlignment)random.Next(3);
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}
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else
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{
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VerticalAlignment = (VerticalAlignment)random.Next(3);
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}
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};
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timer.Start();
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}
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}
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}
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```
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長いのでボタンは省略しましたが、あってもOKです。
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