在代码隐藏中处理事件以及在某些事件上调用视图模型的命令
Handle an event in code behind as well as Invoke a view model's command on some event
这里是概述：
我正在使用自定义控件 (CusCtrl) 来显示任务栏图标，它还有一个 Popup 属性。因此，当您单击该图标时，CusCtrl 会显示弹出窗口。
我正在使用 UserControl 设置弹出窗口的子项（比方说 UC1）。
我正在使用 ViewModel 设置 CusCtrl 的 DataContext，因此即使 UC1 也与相应的 ViewModel 绑定（比方说 VM1）
现在 UC1 有一些元素 - 标签，点击标签我需要做两件事：
在视图模型 VM1 上调用命令 -
从命令我需要将一些视图模型的属性作为参数传递并打开一些 window UI.
关闭弹出窗口 -
为此，我考虑过在 UserControl 的代码后面监听 MouseUp 事件，然后触发一个路由事件（FirePopUpClose - 此事件在 UserControl UC1 中定义），它将由应用程序处理，然后从
handler, Custom Conntrol 的 ClosePopUp 方法将被调用。
我知道如何使用 Interactivity dll 在标签上的 MouseUp 事件上调用命令，但是我怎样才能引发 FirePopUpClose 路由事件？
或者如何在标签上应用 MouseUp 事件处理程序并将命令绑定到该标签？
我什至认为这是正确的方法还是有一些更好的清洁方法来执行某些 UI 操作以及通过坚持使用 MVVM 关闭弹出窗口？
下一个解决方案呢；尝试使用 Popup.IsOpen 属性 (here is the information about, and here is the example of usage #867 – Controlling Whether a Popup Is Open Using Data Binding )。直接或通过 CusCtrl 用户控件的 DependencyProperty 将其绑定到 UC1 DataContext（您必须在封装 Popup 的控件中创建 属性）。就是这样，这样你就可以在没有事件的情况下管理弹出窗口的打开或关闭。
更新
尝试下一个：
1.主要Xaml:
<Window x:Class="PopupIsOpenDataBindingHelpAttempt.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:popupIsOpenDataBindingHelpAttempt="clr-namespace:PopupIsOpenDataBindingHelpAttempt"
xmlns:system="clr-namespace:System;assembly=mscorlib"
Title="MainWindow" Height="350" Width="525">
<Window.DataContext>
<popupIsOpenDataBindingHelpAttempt:DemoMainViewModel/>
</Window.DataContext>
<Window.Resources>
<DataTemplate x:Key="PopupInnerControlDataTemplateKey" DataType="{x:Type popupIsOpenDataBindingHelpAttempt:TaskBarDemoViewModel}">
<Grid Width="150" Height="85">
<Grid.RowDefinitions>
<RowDefinition></RowDefinition>
<RowDefinition></RowDefinition>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Text="{Binding TextString}"
Margin="5" Foreground="Red"
Width="150" TextWrapping="WrapWithOverflow"
VerticalAlignment="Stretch" HorizontalAlignment="Stretch"/>
<Button Grid.Row="1" Content="Press to close" Command="{Binding PopupInnerButtonCommand}"
VerticalAlignment="Stretch" HorizontalAlignment="Stretch"/>
</Grid>
</DataTemplate>
<Image x:Key="ImageControl" Source="Pic/2015_10_16_Bing_en-US.jpg" IsHitTestVisible="False"/>
</Window.Resources>
<Grid Width="75" Height="75" HorizontalAlignment="Center" VerticalAlignment="Center">
<popupIsOpenDataBindingHelpAttempt:TaskBarIconProjectDemo
ButtonContentProperty="{StaticResource ImageControl}"
ButtonCommandProperty="{Binding ShowPopupCommand}"
PopupIsOpenProperty="{Binding IsPopupOpen, UpdateSourceTrigger=PropertyChanged}"
PopupInnerContentControlDataContext="{Binding TaskBarDemoViewModel, UpdateSourceTrigger=PropertyChanged}"
PopupInnerContentControlContentTemplate="{StaticResource PopupInnerControlDataTemplateKey}"/>
</Grid>
2.弹窗封装XAMl:
<UserControl x:Class="PopupIsOpenDataBindingHelpAttempt.TaskBarIconProjectDemo"
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"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300" x:Name="This">
<Grid>
<Button Style="{StaticResource SpecialButtonStyle}" Command="{Binding ElementName=This, Path=ButtonCommandProperty}"
Content="{Binding ElementName=This, Path=ButtonContentProperty}"></Button>
<Popup IsOpen="{Binding ElementName=This, Path=PopupIsOpenProperty}">
<ContentControl Content="{Binding ElementName=This, Path=PopupInnerContentControlDataContext}"
ContentTemplate="{Binding ElementName=This, Path=PopupInnerContentControlContentTemplate}"/>
</Popup>
</Grid>
3.弹出封装控制代码在后面（依赖属性）：
public partial class TaskBarIconProjectDemo : UserControl
{
public static readonly DependencyProperty ButtonCommandPropertyProperty = DependencyProperty.Register("ButtonCommandProperty", typeof (ICommand), typeof (TaskBarIconProjectDemo), new PropertyMetadata(default(ICommand)));
public static readonly DependencyProperty PopupIsOpenPropertyProperty = DependencyProperty.Register("PopupIsOpenProperty", typeof (bool), typeof (TaskBarIconProjectDemo), new PropertyMetadata(default(bool)));
public static readonly DependencyProperty PopupInnerContentControlDataContextProperty = DependencyProperty.Register("PopupInnerContentControlDataContext", typeof (object), typeof (TaskBarIconProjectDemo), new PropertyMetadata(default(object)));
public static readonly DependencyProperty PopupInnerContentControlContentTemplateProperty = DependencyProperty.Register("PopupInnerContentControlContentTemplate", typeof (DataTemplate), typeof (TaskBarIconProjectDemo), new PropertyMetadata(default(DataTemplate)));
public static readonly DependencyProperty ButtonContentPropertyProperty = DependencyProperty.Register("ButtonContentProperty", typeof (object), typeof (TaskBarIconProjectDemo), new PropertyMetadata(default(object)));
public TaskBarIconProjectDemo()
{
InitializeComponent();
}
public ICommand ButtonCommandProperty
{
get { return (ICommand) GetValue(ButtonCommandPropertyProperty); }
set { SetValue(ButtonCommandPropertyProperty, value); }
}
public bool PopupIsOpenProperty
{
get { return (bool) GetValue(PopupIsOpenPropertyProperty); }
set { SetValue(PopupIsOpenPropertyProperty, value); }
}
public object PopupInnerContentControlDataContext
{
get { return (object) GetValue(PopupInnerContentControlDataContextProperty); }
set { SetValue(PopupInnerContentControlDataContextProperty, value); }
}
public DataTemplate PopupInnerContentControlContentTemplate
{
get { return (DataTemplate) GetValue(PopupInnerContentControlContentTemplateProperty); }
set { SetValue(PopupInnerContentControlContentTemplateProperty, value); }
}
public object ButtonContentProperty
{
get { return (object) GetValue(ButtonContentPropertyProperty); }
set { SetValue(ButtonContentPropertyProperty, value); }
}
}
4。查看模型：
public class DemoMainViewModel:BaseObservableObject
{
private bool _isOpen;
private TaskBarDemoViewModel _taskBarDemoViewModel;
private ICommand _showPopupCommnad;
public DemoMainViewModel()
{
TaskBarDemoViewModel = new TaskBarDemoViewModel(ClosePopup, "Here you can put your content. Go for it...");
}
private void ClosePopup()
{
IsPopupOpen = false;
}
public bool IsPopupOpen
{
get { return _isOpen; }
set
{
_isOpen = value;
OnPropertyChanged();
}
}
public TaskBarDemoViewModel TaskBarDemoViewModel
{
get { return _taskBarDemoViewModel; }
set
{
_taskBarDemoViewModel = value;
OnPropertyChanged();
}
}
public ICommand ShowPopupCommand
{
get { return _showPopupCommnad ?? (_showPopupCommnad = new RelayCommand(ShowPopup)); }
}
private void ShowPopup()
{
IsPopupOpen = true;
}
}
public class TaskBarDemoViewModel:BaseObservableObject
{
private readonly Action _closePopupCommand;
private ICommand _command;
private string _textString;
public TaskBarDemoViewModel(Action closePopupCommand, string content)
{
_closePopupCommand = closePopupCommand;
TextString = content;
}
public ICommand PopupInnerButtonCommand
{
get { return _command ?? (_command = new RelayCommand(TargetMethod)); }
}
private void TargetMethod()
{
//add your logic here
if(_closePopupCommand == null) return;
_closePopupCommand();
}
public string TextString
{
get { return _textString; }
set
{
_textString = value;
OnPropertyChanged();
}
}
}
5。按钮样式（根据需要更改）：
<Color x:Key="ButtonLowerPartKey">#FFD5E0EE</Color>
<Color x:Key="ButtonUpperPartKey">#FFEAF1F8</Color>
<Color x:Key="PressedColorButtonLowerPartKey">#FFF4C661</Color>
<Color x:Key="PressedButtonUpperPartKey">#FFF4CC87</Color>
<Color x:Key="HooveredButtonLowerPartKey">#FFFFD06D</Color>
<Color x:Key="HooveredButtonUpperPartKey">#FFFFF0DF</Color>
<Style x:Key="SpecialButtonStyle" TargetType="Button" BasedOn="{StaticResource {x:Type Button}}">
<Setter Property="Padding" Value="5">
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Grid x:Name="Grid">
<Ellipse x:Name="ButtonControlBorder" Stroke="{TemplateBinding BorderBrush}"
StrokeThickness="{TemplateBinding BorderThickness}"
Width="{TemplateBinding Width}" Height="{TemplateBinding Height}">
<Ellipse.Fill>
<LinearGradientBrush x:Name="BrushKey" MappingMode="RelativeToBoundingBox" SpreadMethod="Repeat" StartPoint="0.5,0" EndPoint="0.5,1">
<LinearGradientBrush.GradientStops>
<GradientStop Offset="0.5" Color="{StaticResource ButtonUpperPartKey}" />
<GradientStop Offset="0.5" Color="{StaticResource ButtonUpperPartKey}" />
<GradientStop Offset="0.5" Color="{StaticResource ButtonLowerPartKey}" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse x:Name="Pressed" Width="{TemplateBinding Width}" Height="{TemplateBinding Height}" Opacity="0">
<Ellipse.Fill>
<LinearGradientBrush x:Name="PressedBrushKey" MappingMode="RelativeToBoundingBox" SpreadMethod="Repeat" StartPoint="0.5,0" EndPoint="0.5,1">
<LinearGradientBrush.GradientStops>
<GradientStop Offset="0.5" Color="{StaticResource PressedButtonUpperPartKey}" />
<GradientStop Offset="0.5" Color="{StaticResource PressedButtonUpperPartKey}" />
<GradientStop Offset="0.5" Color="{StaticResource PressedColorButtonLowerPartKey}" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse x:Name="InnerPressed"
Width="{Binding ElementName=Pressed, Path=Width}" Height="{Binding ElementName=Pressed, Path=Height}"
Stroke="DarkOrange" Opacity="0" StrokeThickness="1" SnapsToDevicePixels="True" Fill="Transparent"/>
<ContentPresenter Content="{TemplateBinding Button.Content}" HorizontalAlignment="Center" VerticalAlignment="Center">
<ContentPresenter.OpacityMask>
<VisualBrush Visual="{Binding ElementName=ButtonControlBorder}" />
</ContentPresenter.OpacityMask>
</ContentPresenter>
<Grid.Triggers>
<EventTrigger RoutedEvent="Mouse.MouseEnter">
<BeginStoryboard x:Name="MouseEnterStoryboard">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BrushKey" Storyboard.TargetProperty="GradientStops[0].Color" From="{StaticResource ButtonUpperPartKey}" To="{StaticResource HooveredButtonUpperPartKey}" Duration="0:0:0.3" AutoReverse="False" />
<ColorAnimation Storyboard.TargetName="BrushKey" Storyboard.TargetProperty="GradientStops[2].Color" From="{StaticResource ButtonLowerPartKey}" To="{StaticResource HooveredButtonLowerPartKey}" Duration="0:0:0.3" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<EventTrigger RoutedEvent="Mouse.MouseLeave">
<BeginStoryboard>
<Storyboard>
<ColorAnimation Storyboard.TargetName="BrushKey" Storyboard.TargetProperty="GradientStops[0].Color" From="{StaticResource HooveredButtonUpperPartKey}" To="{StaticResource ButtonUpperPartKey}" Duration="0:0:1" AutoReverse="False" />
<ColorAnimation Storyboard.TargetName="BrushKey" Storyboard.TargetProperty="GradientStops[2].Color" From="{StaticResource HooveredButtonLowerPartKey}" To="{StaticResource ButtonLowerPartKey}" Duration="0:0:1" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Grid.Triggers>
</Grid>
<ControlTemplate.Resources>
<Storyboard x:Key="MouseUpTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="Pressed" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="MouseDownTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="Pressed" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.05" Value="0.8" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="InnerPressedMouseUpTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="InnerPressed" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="InnerPressedMouseDownTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="InnerPressed" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.05" Value="1" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</ControlTemplate.Resources>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" SourceName="Grid" Value="True">
<Setter Property="Stroke" TargetName="ButtonControlBorder">
<Setter.Value>
<SolidColorBrush Color="{StaticResource HooveredButtonLowerPartKey}">
</SolidColorBrush>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="ButtonBase.IsPressed" Value="True">
<Trigger.EnterActions>
<BeginStoryboard Storyboard="{StaticResource MouseDownTimeLine}" />
<BeginStoryboard Storyboard="{StaticResource InnerPressedMouseDownTimeLine}">
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard Storyboard="{StaticResource MouseUpTimeLine}" />
<BeginStoryboard Storyboard="{StaticResource InnerPressedMouseUpTimeLine}">
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
BaseObservableObject是INCP的简单实现。
RelayCommand是ICommand接口的简单实现
如果您对代码有疑问，我很乐意提供帮助。
此致，
这里是概述：
我正在使用自定义控件 (CusCtrl) 来显示任务栏图标，它还有一个 Popup 属性。因此，当您单击该图标时，CusCtrl 会显示弹出窗口。
我正在使用 UserControl 设置弹出窗口的子项（比方说 UC1）。
我正在使用 ViewModel 设置 CusCtrl 的 DataContext，因此即使 UC1 也与相应的 ViewModel 绑定（比方说 VM1）
现在 UC1 有一些元素 - 标签，点击标签我需要做两件事：
在视图模型 VM1 上调用命令 -
从命令我需要将一些视图模型的属性作为参数传递并打开一些 window UI.
关闭弹出窗口 -
为此，我考虑过在 UserControl 的代码后面监听 MouseUp 事件，然后触发一个路由事件（FirePopUpClose - 此事件在 UserControl UC1 中定义），它将由应用程序处理，然后从 handler, Custom Conntrol 的 ClosePopUp 方法将被调用。
我知道如何使用 Interactivity dll 在标签上的 MouseUp 事件上调用命令，但是我怎样才能引发 FirePopUpClose 路由事件？
或者如何在标签上应用 MouseUp 事件处理程序并将命令绑定到该标签？
我什至认为这是正确的方法还是有一些更好的清洁方法来执行某些 UI 操作以及通过坚持使用 MVVM 关闭弹出窗口？
下一个解决方案呢；尝试使用 Popup.IsOpen 属性 (here is the information about, and here is the example of usage #867 – Controlling Whether a Popup Is Open Using Data Binding )。直接或通过 CusCtrl 用户控件的 DependencyProperty 将其绑定到 UC1 DataContext（您必须在封装 Popup 的控件中创建 属性）。就是这样，这样你就可以在没有事件的情况下管理弹出窗口的打开或关闭。
更新 尝试下一个： 1.主要Xaml:
<Window x:Class="PopupIsOpenDataBindingHelpAttempt.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:popupIsOpenDataBindingHelpAttempt="clr-namespace:PopupIsOpenDataBindingHelpAttempt"
xmlns:system="clr-namespace:System;assembly=mscorlib"
Title="MainWindow" Height="350" Width="525">
<Window.DataContext>
<popupIsOpenDataBindingHelpAttempt:DemoMainViewModel/>
</Window.DataContext>
<Window.Resources>
<DataTemplate x:Key="PopupInnerControlDataTemplateKey" DataType="{x:Type popupIsOpenDataBindingHelpAttempt:TaskBarDemoViewModel}">
<Grid Width="150" Height="85">
<Grid.RowDefinitions>
<RowDefinition></RowDefinition>
<RowDefinition></RowDefinition>
</Grid.RowDefinitions>
<TextBlock Grid.Row="0" Text="{Binding TextString}"
Margin="5" Foreground="Red"
Width="150" TextWrapping="WrapWithOverflow"
VerticalAlignment="Stretch" HorizontalAlignment="Stretch"/>
<Button Grid.Row="1" Content="Press to close" Command="{Binding PopupInnerButtonCommand}"
VerticalAlignment="Stretch" HorizontalAlignment="Stretch"/>
</Grid>
</DataTemplate>
<Image x:Key="ImageControl" Source="Pic/2015_10_16_Bing_en-US.jpg" IsHitTestVisible="False"/>
</Window.Resources>
<Grid Width="75" Height="75" HorizontalAlignment="Center" VerticalAlignment="Center">
<popupIsOpenDataBindingHelpAttempt:TaskBarIconProjectDemo
ButtonContentProperty="{StaticResource ImageControl}"
ButtonCommandProperty="{Binding ShowPopupCommand}"
PopupIsOpenProperty="{Binding IsPopupOpen, UpdateSourceTrigger=PropertyChanged}"
PopupInnerContentControlDataContext="{Binding TaskBarDemoViewModel, UpdateSourceTrigger=PropertyChanged}"
PopupInnerContentControlContentTemplate="{StaticResource PopupInnerControlDataTemplateKey}"/>
</Grid>
2.弹窗封装XAMl:
<UserControl x:Class="PopupIsOpenDataBindingHelpAttempt.TaskBarIconProjectDemo"
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"
mc:Ignorable="d"
d:DesignHeight="300" d:DesignWidth="300" x:Name="This">
<Grid>
<Button Style="{StaticResource SpecialButtonStyle}" Command="{Binding ElementName=This, Path=ButtonCommandProperty}"
Content="{Binding ElementName=This, Path=ButtonContentProperty}"></Button>
<Popup IsOpen="{Binding ElementName=This, Path=PopupIsOpenProperty}">
<ContentControl Content="{Binding ElementName=This, Path=PopupInnerContentControlDataContext}"
ContentTemplate="{Binding ElementName=This, Path=PopupInnerContentControlContentTemplate}"/>
</Popup>
</Grid>
3.弹出封装控制代码在后面（依赖属性）：
public partial class TaskBarIconProjectDemo : UserControl
{
public static readonly DependencyProperty ButtonCommandPropertyProperty = DependencyProperty.Register("ButtonCommandProperty", typeof (ICommand), typeof (TaskBarIconProjectDemo), new PropertyMetadata(default(ICommand)));
public static readonly DependencyProperty PopupIsOpenPropertyProperty = DependencyProperty.Register("PopupIsOpenProperty", typeof (bool), typeof (TaskBarIconProjectDemo), new PropertyMetadata(default(bool)));
public static readonly DependencyProperty PopupInnerContentControlDataContextProperty = DependencyProperty.Register("PopupInnerContentControlDataContext", typeof (object), typeof (TaskBarIconProjectDemo), new PropertyMetadata(default(object)));
public static readonly DependencyProperty PopupInnerContentControlContentTemplateProperty = DependencyProperty.Register("PopupInnerContentControlContentTemplate", typeof (DataTemplate), typeof (TaskBarIconProjectDemo), new PropertyMetadata(default(DataTemplate)));
public static readonly DependencyProperty ButtonContentPropertyProperty = DependencyProperty.Register("ButtonContentProperty", typeof (object), typeof (TaskBarIconProjectDemo), new PropertyMetadata(default(object)));
public TaskBarIconProjectDemo()
{
InitializeComponent();
}
public ICommand ButtonCommandProperty
{
get { return (ICommand) GetValue(ButtonCommandPropertyProperty); }
set { SetValue(ButtonCommandPropertyProperty, value); }
}
public bool PopupIsOpenProperty
{
get { return (bool) GetValue(PopupIsOpenPropertyProperty); }
set { SetValue(PopupIsOpenPropertyProperty, value); }
}
public object PopupInnerContentControlDataContext
{
get { return (object) GetValue(PopupInnerContentControlDataContextProperty); }
set { SetValue(PopupInnerContentControlDataContextProperty, value); }
}
public DataTemplate PopupInnerContentControlContentTemplate
{
get { return (DataTemplate) GetValue(PopupInnerContentControlContentTemplateProperty); }
set { SetValue(PopupInnerContentControlContentTemplateProperty, value); }
}
public object ButtonContentProperty
{
get { return (object) GetValue(ButtonContentPropertyProperty); }
set { SetValue(ButtonContentPropertyProperty, value); }
}
}
4。查看模型：
public class DemoMainViewModel:BaseObservableObject
{
private bool _isOpen;
private TaskBarDemoViewModel _taskBarDemoViewModel;
private ICommand _showPopupCommnad;
public DemoMainViewModel()
{
TaskBarDemoViewModel = new TaskBarDemoViewModel(ClosePopup, "Here you can put your content. Go for it...");
}
private void ClosePopup()
{
IsPopupOpen = false;
}
public bool IsPopupOpen
{
get { return _isOpen; }
set
{
_isOpen = value;
OnPropertyChanged();
}
}
public TaskBarDemoViewModel TaskBarDemoViewModel
{
get { return _taskBarDemoViewModel; }
set
{
_taskBarDemoViewModel = value;
OnPropertyChanged();
}
}
public ICommand ShowPopupCommand
{
get { return _showPopupCommnad ?? (_showPopupCommnad = new RelayCommand(ShowPopup)); }
}
private void ShowPopup()
{
IsPopupOpen = true;
}
}
public class TaskBarDemoViewModel:BaseObservableObject
{
private readonly Action _closePopupCommand;
private ICommand _command;
private string _textString;
public TaskBarDemoViewModel(Action closePopupCommand, string content)
{
_closePopupCommand = closePopupCommand;
TextString = content;
}
public ICommand PopupInnerButtonCommand
{
get { return _command ?? (_command = new RelayCommand(TargetMethod)); }
}
private void TargetMethod()
{
//add your logic here
if(_closePopupCommand == null) return;
_closePopupCommand();
}
public string TextString
{
get { return _textString; }
set
{
_textString = value;
OnPropertyChanged();
}
}
}
5。按钮样式（根据需要更改）：
<Color x:Key="ButtonLowerPartKey">#FFD5E0EE</Color>
<Color x:Key="ButtonUpperPartKey">#FFEAF1F8</Color>
<Color x:Key="PressedColorButtonLowerPartKey">#FFF4C661</Color>
<Color x:Key="PressedButtonUpperPartKey">#FFF4CC87</Color>
<Color x:Key="HooveredButtonLowerPartKey">#FFFFD06D</Color>
<Color x:Key="HooveredButtonUpperPartKey">#FFFFF0DF</Color>
<Style x:Key="SpecialButtonStyle" TargetType="Button" BasedOn="{StaticResource {x:Type Button}}">
<Setter Property="Padding" Value="5">
</Setter>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate>
<Grid x:Name="Grid">
<Ellipse x:Name="ButtonControlBorder" Stroke="{TemplateBinding BorderBrush}"
StrokeThickness="{TemplateBinding BorderThickness}"
Width="{TemplateBinding Width}" Height="{TemplateBinding Height}">
<Ellipse.Fill>
<LinearGradientBrush x:Name="BrushKey" MappingMode="RelativeToBoundingBox" SpreadMethod="Repeat" StartPoint="0.5,0" EndPoint="0.5,1">
<LinearGradientBrush.GradientStops>
<GradientStop Offset="0.5" Color="{StaticResource ButtonUpperPartKey}" />
<GradientStop Offset="0.5" Color="{StaticResource ButtonUpperPartKey}" />
<GradientStop Offset="0.5" Color="{StaticResource ButtonLowerPartKey}" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse x:Name="Pressed" Width="{TemplateBinding Width}" Height="{TemplateBinding Height}" Opacity="0">
<Ellipse.Fill>
<LinearGradientBrush x:Name="PressedBrushKey" MappingMode="RelativeToBoundingBox" SpreadMethod="Repeat" StartPoint="0.5,0" EndPoint="0.5,1">
<LinearGradientBrush.GradientStops>
<GradientStop Offset="0.5" Color="{StaticResource PressedButtonUpperPartKey}" />
<GradientStop Offset="0.5" Color="{StaticResource PressedButtonUpperPartKey}" />
<GradientStop Offset="0.5" Color="{StaticResource PressedColorButtonLowerPartKey}" />
</LinearGradientBrush.GradientStops>
</LinearGradientBrush>
</Ellipse.Fill>
</Ellipse>
<Ellipse x:Name="InnerPressed"
Width="{Binding ElementName=Pressed, Path=Width}" Height="{Binding ElementName=Pressed, Path=Height}"
Stroke="DarkOrange" Opacity="0" StrokeThickness="1" SnapsToDevicePixels="True" Fill="Transparent"/>
<ContentPresenter Content="{TemplateBinding Button.Content}" HorizontalAlignment="Center" VerticalAlignment="Center">
<ContentPresenter.OpacityMask>
<VisualBrush Visual="{Binding ElementName=ButtonControlBorder}" />
</ContentPresenter.OpacityMask>
</ContentPresenter>
<Grid.Triggers>
<EventTrigger RoutedEvent="Mouse.MouseEnter">
<BeginStoryboard x:Name="MouseEnterStoryboard">
<Storyboard>
<ColorAnimation Storyboard.TargetName="BrushKey" Storyboard.TargetProperty="GradientStops[0].Color" From="{StaticResource ButtonUpperPartKey}" To="{StaticResource HooveredButtonUpperPartKey}" Duration="0:0:0.3" AutoReverse="False" />
<ColorAnimation Storyboard.TargetName="BrushKey" Storyboard.TargetProperty="GradientStops[2].Color" From="{StaticResource ButtonLowerPartKey}" To="{StaticResource HooveredButtonLowerPartKey}" Duration="0:0:0.3" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
<EventTrigger RoutedEvent="Mouse.MouseLeave">
<BeginStoryboard>
<Storyboard>
<ColorAnimation Storyboard.TargetName="BrushKey" Storyboard.TargetProperty="GradientStops[0].Color" From="{StaticResource HooveredButtonUpperPartKey}" To="{StaticResource ButtonUpperPartKey}" Duration="0:0:1" AutoReverse="False" />
<ColorAnimation Storyboard.TargetName="BrushKey" Storyboard.TargetProperty="GradientStops[2].Color" From="{StaticResource HooveredButtonLowerPartKey}" To="{StaticResource ButtonLowerPartKey}" Duration="0:0:1" />
</Storyboard>
</BeginStoryboard>
</EventTrigger>
</Grid.Triggers>
</Grid>
<ControlTemplate.Resources>
<Storyboard x:Key="MouseUpTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="Pressed" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="MouseDownTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="Pressed" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.05" Value="0.8" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="InnerPressedMouseUpTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="InnerPressed" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.25" Value="0" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
<Storyboard x:Key="InnerPressedMouseDownTimeLine">
<DoubleAnimationUsingKeyFrames BeginTime="00:00:00" Storyboard.TargetName="InnerPressed" Storyboard.TargetProperty="Opacity">
<SplineDoubleKeyFrame KeyTime="00:00:00.05" Value="1" />
</DoubleAnimationUsingKeyFrames>
</Storyboard>
</ControlTemplate.Resources>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" SourceName="Grid" Value="True">
<Setter Property="Stroke" TargetName="ButtonControlBorder">
<Setter.Value>
<SolidColorBrush Color="{StaticResource HooveredButtonLowerPartKey}">
</SolidColorBrush>
</Setter.Value>
</Setter>
</Trigger>
<Trigger Property="ButtonBase.IsPressed" Value="True">
<Trigger.EnterActions>
<BeginStoryboard Storyboard="{StaticResource MouseDownTimeLine}" />
<BeginStoryboard Storyboard="{StaticResource InnerPressedMouseDownTimeLine}">
</BeginStoryboard>
</Trigger.EnterActions>
<Trigger.ExitActions>
<BeginStoryboard Storyboard="{StaticResource MouseUpTimeLine}" />
<BeginStoryboard Storyboard="{StaticResource InnerPressedMouseUpTimeLine}">
</BeginStoryboard>
</Trigger.ExitActions>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
BaseObservableObject是INCP的简单实现。
RelayCommand是ICommand接口的简单实现
如果您对代码有疑问，我很乐意提供帮助。 此致，