У меня есть прямоугольник со стилем, определенным в , но привязка данных в этом стиле не работает? Как решить проблему?
Если я переопределить прямоугольник, он работает (но анимация не работает). но если я переместил его в стиль, он больше не работает.
<UserControl x:Class="MyProject.WPF.Controls.UI_MovingLine"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:local="clr-namespace:AutinPower.WPF.Controls"
mc:Ignorable="d"
Height="8" Width="auto">
<Rectangle x:Name="rectangleLine" Width="auto" Height="auto" Margin="0">
<Rectangle.Style>
<Style TargetType="{x:Type Rectangle}">
<Setter Property="RenderTransform">
<Setter.Value>
<RotateTransform Angle="0" />
</Setter.Value>
</Setter>
<Setter Property="Fill">
<Setter.Value>
<VisualBrush TileMode="Tile" Viewport="0,0,10,8" ViewportUnits="Absolute" Viewbox="0,0,8,8" ViewboxUnits="Absolute">
<VisualBrush.Transform>
<TranslateTransform X="0" Y="0" />
</VisualBrush.Transform>
<VisualBrush.Visual>
<Grid x:Name="gridMoving">
<Polygon x:Name="polygonMovingBack" Fill="{Binding LineBackColor}" Points="0,0 8,0 8,8 0,8" />
<Polygon x:Name="polygonMoving" Fill="{Binding LineBackgroundColor}" Points="{Binding IndicationShape}" />
</Grid>
</VisualBrush.Visual>
</VisualBrush>
</Setter.Value>
</Setter>
<Style.Triggers>
<DataTrigger Binding="{Binding AnimationStart}" Value="Start">
<DataTrigger.EnterActions>
<BeginStoryboard x:Name="StartAnimation">
<Storyboard>
<DoubleAnimation
From="0"
To="10"
RepeatBehavior="Forever"
Storyboard.TargetProperty="(Rectangle.Fill).(VisualBrush.Transform).(TranslateTransform.X)"
Duration="0:0:0.1" />
</Storyboard>
</BeginStoryboard>
</DataTrigger.EnterActions>
</DataTrigger>
<DataTrigger Binding="{Binding AnimationStart}" Value="Stop">
<DataTrigger.EnterActions>
<StopStoryboard x:Name="StopAnimation" BeginStoryboardName="StartAnimation"/>
</DataTrigger.EnterActions>
</DataTrigger>
</Style.Triggers>
</Style>
</Rectangle.Style>
</Rectangle>
</UserControl>
код позади
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using MyProject.Enum;
namespace MyProject.WPF.Controls
{
/// <summary>
/// Interaction logic for UI_MovingLine.xaml
/// </summary>
public partial class UI_MovingLine : UserControl, INotifyPropertyChanged
{
#region properties
public PointCollection IndicationPoints
{
get
{
return (PointCollection)GetValue(IndicationPointsProperty);
}
set
{
SetValue(IndicationPointsProperty, value);
}
}
public SolidColorBrush LineBackgroundColor
{
get
{
return (SolidColorBrush)GetValue(LineBackgroundColorProperty);
}
set
{
SetValue(LineBackgroundColorProperty, value);
}
}
public SolidColorBrush LineBackColor
{
get
{
return (SolidColorBrush)GetValue(LineBackColorProperty);
}
set
{
SetValue(LineBackColorProperty, value);
}
}
public PowerSystem.TransmitLineStatus TransmitLineStatus { get => _transmitLineStatus; set => _transmitLineStatus = value; }
public string AnimationStart {
get => _animationStart;
set {
_animationStart = value;
NotifyPropertyChanged("AnimationStart");
} }
public Action<object[]> NotifyUI { get; set; }
#endregion
#region fields
private PowerSystem.TransmitLineStatus _transmitLineStatus;
private Storyboard _storyboard;
private string _animationStart;
#endregion
public UI_MovingLine()
{
InitializeComponent();
rectangleLine.DataContext = this;
//gridMoving.DataContext = this;
//polygonMoving.DataContext = this;
AnimationStart = "Start";
}
public event PropertyChangedEventHandler PropertyChanged;
private void NotifyPropertyChanged(string info)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(info));
}
}
public static readonly DependencyProperty IndicationPointsProperty
= DependencyProperty.Register("IndicationPoints", typeof(PointCollection), typeof(UI_MovingLine), new PropertyMetadata(new PointCollection(new List<Point> { new Point(0, 0), new Point(4, 0), new Point(8, 4), new Point(4, 8), new Point(0, 8), new Point(4, 4) })/*, new PropertyChangedCallback(OnIndicationPointsChanged)*/));
public static readonly DependencyProperty LineBackgroundColorProperty
= DependencyProperty.Register("LineBackgroundColor", typeof(SolidColorBrush), typeof(UI_MovingLine), new PropertyMetadata(new SolidColorBrush(Colors.Gray)/*, new PropertyChangedCallback(OnLineBackgroundColorChanged)*/));
public static readonly DependencyProperty LineBackColorProperty
= DependencyProperty.Register("LineBackColor", typeof(SolidColorBrush), typeof(UI_MovingLine), new PropertyMetadata(new SolidColorBrush(Colors.Gray)/*, new PropertyChangedCallback(OnLineBackColorChanged)*/));
public static readonly DependencyProperty AnimationStartProperty
= DependencyProperty.Register("AnimationStart", typeof(string), typeof(UI_MovingLine), new PropertyMetadata("Stop"/*, new PropertyChangedCallback(AnimationStartChanged)*/));
public void LineMovingToNomal()
{
try
{
IndicationPoints = new PointCollection(new List<Point> { new Point(0, 0), new Point(4, 0), new Point(8, 4), new Point(4, 8), new Point(0, 8), new Point(4, 4) });
LineBackgroundColor = new SolidColorBrush(Colors.DodgerBlue);
LineBackColor = new SolidColorBrush(Colors.White);
AnimationStart = "Start";
}
catch
{
}
}
}
привязка данных в стиле должна работать правильно