wpf 中的 自定义控件的 binding

XMl 代码

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<UserControl

x:Class="Xiaowei.Controls.PermissionBlock"

xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

xmlns:local="using:Xiaowei.Controls"

xmlns:d="http://schemas.microsoft.com/expression/blend/2008"

xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"

xmlns:tk="using:Microsoft.Toolkit.Uwp.UI.Controls"

mc:Ignorable="d"

d:DesignHeight="200"

d:DesignWidth="480"

Height="76"

x:Name="permissionBlock">

<UserControl.Resources>

<Storyboard x:Name="GIFStoryBoard">

<DoubleAnimation

x:Name="GIFDoubleAnimation"

EnableDependentAnimation="True"

To="176" Duration="00:00:0.3"

Storyboard.TargetName="borderGrid"

Storyboard.TargetProperty="Height">

<DoubleAnimation.EasingFunction>

<PowerEase EasingMode="EaseInOut"/>

</DoubleAnimation.EasingFunction>

</DoubleAnimation>

<DoubleAnimation

x:Name="GIFBorderDoubleAnimation"

EnableDependentAnimation="True"

To="1" Duration="00:00:0.3"

Storyboard.TargetName="shadowBorder"

Storyboard.TargetProperty="Opacity">

<DoubleAnimation.EasingFunction>

<PowerEase EasingMode="EaseInOut"/>

</DoubleAnimation.EasingFunction>

</DoubleAnimation>

</Storyboard>

</UserControl.Resources>

<Grid x:Name="borderGrid" Height="76" VerticalAlignment="Top" Margin="0,0,0,-200">

<tk:DropShadowPanel Opacity="0"

x:Name="shadowBorder"

VerticalContentAlignment="Stretch"

Margin="14,0,14,8"

HorizontalContentAlignment="Stretch">

<Grid Background="White"

CornerRadius="7" >

</Grid>

</tk:DropShadowPanel>

<Grid Background="White" CornerRadius="7" Margin="14,0,14,8" VerticalAlignment="Stretch" PointerEntered="PointerEntered" PointerExited="PointerExited">

<Grid.RowDefinitions>

<RowDefinition Height="auto"/>

<RowDefinition Height="1*"/>

</Grid.RowDefinitions>

<Image

Width="28"

Height="28"

Margin="12,20,0,20"

HorizontalAlignment="Left"

VerticalAlignment="Center"

Source="{Binding Icon, ElementName=permissionBlock, Mode=OneWay}"

/>

<TextBlock

HorizontalAlignment="Left"

VerticalAlignment="Top"

FontSize="16"

Foreground="#272727"

Margin="48,12,0,0"

Text="{Binding Title, ElementName=permissionBlock, Mode=OneWay}">

</TextBlock>

<TextBlock

Foreground="#666666"

HorizontalAlignment="Left"

VerticalAlignment="Bottom"

FontSize="14"

FontWeight="Light"

Text="{Binding Comment, ElementName=permissionBlock, Mode=OneWay}"

Margin="48,0,0,11">

</TextBlock>

<Button

Style="{ThemeResource ButtonStyleTransBack}"

Content="开启"

Click="ActiveButton_Click"

HorizontalAlignment="Right"

Margin="0,0,25,0"

Foreground="#4367FC"

FontSize="16"/>

<Image

Grid.Row="1" Height="119" Margin="12,0,12,12"

Source="{Binding GIFSource, ElementName=permissionBlock, Mode=OneWay}"

/>

</Grid>

</Grid>

</UserControl>

C# code

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using System;

using Windows.UI;

using Windows.UI.Xaml;

using Windows.UI.Xaml.Controls;

using Windows.UI.Xaml.Media;

// The User Control item template is documented at https://go.microsoft.com/fwlink/?LinkId=234236

namespace Xiaowei.Controls

{

public sealed partial class PermissionBlock : UserControl

{

public static DependencyProperty TitleProperty { get; } = DependencyProperty.Register(

"Title", typeof(string), typeof(PermissionBlock), new PropertyMetadata("")

);

public string Title

{

get

{

return (string)GetValue(TitleProperty);

}

set

{

SetValue(TitleProperty, value);

}

}

public static DependencyProperty CommentProperty { get; } = DependencyProperty.Register(

"Comment", typeof(string), typeof(PermissionBlock), new PropertyMetadata("")

);

public string Comment

{

get

{

return (string)GetValue(CommentProperty);

}

set

{

SetValue(CommentProperty, value);

}

}

public static DependencyProperty IconProperty { get; } = DependencyProperty.Register(

"Icon", typeof(ImageSource), typeof(PermissionBlock), new PropertyMetadata(null)

);

public ImageSource Icon

{

get

{

return (ImageSource)GetValue(IconProperty);

}

set

{

SetValue(IconProperty, value);

}

}

public static DependencyProperty GIFSourceProperty { get; } = DependencyProperty.Register(

"GIFSource", typeof(ImageSource), typeof(PermissionBlock), new PropertyMetadata(null)

);

public ImageSource GIFSource

{

get

{

return (ImageSource)GetValue(GIFSourceProperty);

}

set

{

SetValue(GIFSourceProperty, value);

}

}

private void ShowGif()

{

GIFDoubleAnimation.To = 210;

GIFBorderDoubleAnimation.To = 1;

GIFStoryBoard.Begin();

}

private void HideGif()

{

GIFDoubleAnimation.To = 76;

GIFBorderDoubleAnimation.To = 0;

GIFStoryBoard.Begin();

}

public static DependencyProperty IsAllowProperty { get; } = DependencyProperty.Register(

"IsAllow", typeof(bool), typeof(PermissionBlock), new PropertyMetadata(false, IsAllowPropertyChanged)

);

private static void IsAllowPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)

{

if ((bool)e.NewValue)

{

((PermissionBlock)d).Hide();

}

else

{

((PermissionBlock)d).Show();

}

}

public bool IsAllow

{

get

{

return (bool)GetValue(IsAllowProperty);

}

set

{

SetValue(IsAllowProperty, value);

}

}

private void Show()

{

Visibility = Visibility.Visible;

}

private void Hide()

{

Visibility = Visibility.Collapsed;

HideGif();

}

public PermissionBlock()

{

this.InitializeComponent();

}

public event Action Click;

private void ActiveButton_Click(object sender, RoutedEventArgs e)

{

Click?.Invoke();

}

private void PointerEntered(object sender, Windows.UI.Xaml.Input.PointerRoutedEventArgs e)

{

ShowGif();

}

private void PointerExited(object sender, Windows.UI.Xaml.Input.PointerRoutedEventArgs e)

{

HideGif();

}

}

}