Wpf 鼠标悬停时更改按钮的颜色
当Wpf 鼠标悬停时更改按钮的颜色,wpf,xaml,user-interface,button,mouseover,Wpf,Xaml,User Interface,Button,Mouseover,当IsMouseOver==True <Button Command="{Binding ClickRectangleColorCommand}" Background="{Binding Color, Converter={StaticResource RGBCtoBrushColorsConverter},Mode=TwoWay}" Width="auto" Height="40"> <TextBlock Foreground="Black" Tex
IsMouseOver==True <Button Command="{Binding ClickRectangleColorCommand}" Background="{Binding Color, Converter={StaticResource RGBCtoBrushColorsConverter},Mode=TwoWay}" Width="auto" Height="40">
<TextBlock Foreground="Black" Text="{Binding Color, Converter={StaticResource RGBCColorToTextConveter},Mode=TwoWay}"/>
<Button.Style>
<Style TargetType="Button" BasedOn="{StaticResource {x:Type Button}}">
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="DarkGoldenrod"/>
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
我似乎不明白为什么这个触发器不工作。试试这个-在这个例子中，原始颜色是绿色，鼠标上方的颜色是深色
<Button Content="Button" HorizontalAlignment="Left" VerticalAlignment="Bottom" Width="50" Height="50" HorizontalContentAlignment="Left" BorderBrush="{x:Null}" Foreground="{x:Null}" Margin="50,0,0,0">
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="Background" Value="Green"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
<Style.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" Value="DarkGoldenrod"/>
</Trigger>
</Style.Triggers>
</Style>
</Button.Style>
</Button>
正如其他人所说，似乎没有很好的解决方案可以轻松做到这一点。
但是为了保持代码干净，我建议创建一个单独的类来隐藏丑陋的XAML
创建ButtonEx类后如何使用：
<Window x:Class="MyApp.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:wpfEx="clr-namespace:WpfExtensions"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid>
<wpfEx:ButtonEx HoverBackground="Red"></wpfEx:ButtonEx>
</Grid>
</Window>
ButtonEx.xaml.cs
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
namespace WpfExtensions
{
/// <summary>
/// Standard button with extensions
/// </summary>
public partial class ButtonEx : Button
{
readonly static Brush DefaultHoverBackgroundValue = new BrushConverter().ConvertFromString("#FFBEE6FD") as Brush;
public ButtonEx()
{
InitializeComponent();
}
public Brush HoverBackground
{
get { return (Brush)GetValue(HoverBackgroundProperty); }
set { SetValue(HoverBackgroundProperty, value); }
}
public static readonly DependencyProperty HoverBackgroundProperty = DependencyProperty.Register(
"HoverBackground", typeof(Brush), typeof(ButtonEx), new PropertyMetadata(DefaultHoverBackgroundValue));
}
}
使用System.Windows；
使用System.Windows.Controls；
使用System.Windows.Media；
命名空间WpfExtensions
{
///
///带扩展的标准按钮
///
公共部分类按钮nex:按钮
{
只读静态笔刷DefaultHoverBackgroundValue=new BrushConverter（）.ConvertFromString（“#FFBEE6FD”）作为笔刷；
公共按钮
{
初始化组件（）；
}
公共背景
{
获取{return（Brush）GetValue（HoverBackgroundProperty）；}
set{SetValue（HoverBackgroundProperty，value）；}
}
公共静态只读DependencyProperty HoverBackgroundProperty=DependencyProperty.Register(
“HoverBackground”、typeof（画笔）、typeof（buttonnex）、新属性元数据（DefaultHoverBackgroundValue））；
}
}
按钮nex.xaml
注意：这包含System.Windows.Controls.Button中的所有原始XAML
提示：
您可以在VS Studio中将名为“ButtonEx”的UserControl添加到您的项目中，然后将上面的内容复制粘贴到中。50秒后：）请问OP到底做错了什么？我想知道，这样我就不会犯同样的错误。WPF永远不会停止让我惊讶的是，做这些简单的事情需要多少代码和仪式。谢谢你的回答，虽然“WPF让困难变得微不足道，琐碎变得困难”，但从这一点上看，不清楚什么部分是必要的，为什么。这里有两个关键问题：1）必须将默认值设置为setter，而不是元素的显式属性；2）必须在样式中设置模板并将边框绑定到模板。这是因为按钮具有嵌套元素，并且边框将覆盖模板。这很奇怪，但对你来说这就是WPF。也就是说：完全用一种极简主义的重新实现来取代这种风格。（我花了一段时间研究这个答案的作用）。回答得很好。我可以看到这种方法的各种应用。这使得重复使用库存控制变得更加容易。公认的答案不起作用，你的答案起作用了。对于那些也想更改前景的人：默认值=
，触发器值=
，这非常有效-非常感谢。
<Window x:Class="MyApp.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:wpfEx="clr-namespace:WpfExtensions"
mc:Ignorable="d"
Title="MainWindow" Height="450" Width="800">
<Grid>
<wpfEx:ButtonEx HoverBackground="Red"></wpfEx:ButtonEx>
</Grid>
</Window>
using System.Windows;
using System.Windows.Controls;
using System.Windows.Media;
namespace WpfExtensions
{
/// <summary>
/// Standard button with extensions
/// </summary>
public partial class ButtonEx : Button
{
readonly static Brush DefaultHoverBackgroundValue = new BrushConverter().ConvertFromString("#FFBEE6FD") as Brush;
public ButtonEx()
{
InitializeComponent();
}
public Brush HoverBackground
{
get { return (Brush)GetValue(HoverBackgroundProperty); }
set { SetValue(HoverBackgroundProperty, value); }
}
public static readonly DependencyProperty HoverBackgroundProperty = DependencyProperty.Register(
"HoverBackground", typeof(Brush), typeof(ButtonEx), new PropertyMetadata(DefaultHoverBackgroundValue));
}
}
<Button x:Class="WpfExtensions.ButtonEx"
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="450" d:DesignWidth="800"
x:Name="buttonExtension">
<Button.Resources>
<Style x:Key="FocusVisual">
<Setter Property="Control.Template">
<Setter.Value>
<ControlTemplate>
<Rectangle Margin="2" SnapsToDevicePixels="true" Stroke="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}" StrokeThickness="10" StrokeDashArray="1 2"/>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<SolidColorBrush x:Key="Button.Static.Background" Color="#FFDDDDDD"/>
<SolidColorBrush x:Key="Button.Static.Border" Color="#FF707070"/>
<SolidColorBrush x:Key="Button.MouseOver.Background" Color="#FFBEE6FD"/>
<SolidColorBrush x:Key="Button.MouseOver.Border" Color="#FF3C7FB1"/>
<SolidColorBrush x:Key="Button.Pressed.Background" Color="#FFC4E5F6"/>
<SolidColorBrush x:Key="Button.Pressed.Border" Color="#FF2C628B"/>
<SolidColorBrush x:Key="Button.Disabled.Background" Color="#FFF4F4F4"/>
<SolidColorBrush x:Key="Button.Disabled.Border" Color="#FFADB2B5"/>
<SolidColorBrush x:Key="Button.Disabled.Foreground" Color="#FF838383"/>
</Button.Resources>
<Button.Style>
<Style TargetType="{x:Type Button}">
<Setter Property="FocusVisualStyle" Value="{StaticResource FocusVisual}"/>
<Setter Property="Background" Value="{StaticResource Button.Static.Background}"/>
<Setter Property="BorderBrush" Value="{StaticResource Button.Static.Border}"/>
<Setter Property="Foreground" Value="{DynamicResource {x:Static SystemColors.ControlTextBrushKey}}"/>
<Setter Property="BorderThickness" Value="1"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="VerticalContentAlignment" Value="Center"/>
<Setter Property="Padding" Value="1"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type Button}">
<Border x:Name="border" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" Background="{TemplateBinding Background}" SnapsToDevicePixels="true">
<ContentPresenter x:Name="contentPresenter" Focusable="False" HorizontalAlignment="{TemplateBinding HorizontalContentAlignment}" Margin="{TemplateBinding Padding}" RecognizesAccessKey="True" SnapsToDevicePixels="{TemplateBinding SnapsToDevicePixels}" VerticalAlignment="{TemplateBinding VerticalContentAlignment}"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsDefaulted" Value="true">
<Setter Property="BorderBrush" TargetName="border" Value="{DynamicResource {x:Static SystemColors.HighlightBrushKey}}"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="true">
<Setter Property="Background" TargetName="border" Value="{Binding Path=HoverBackground, ElementName=buttonExtension}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.MouseOver.Border}"/>
</Trigger>
<Trigger Property="IsPressed" Value="true">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Pressed.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Pressed.Border}"/>
</Trigger>
<Trigger Property="IsEnabled" Value="false">
<Setter Property="Background" TargetName="border" Value="{StaticResource Button.Disabled.Background}"/>
<Setter Property="BorderBrush" TargetName="border" Value="{StaticResource Button.Disabled.Border}"/>
<Setter Property="TextElement.Foreground" TargetName="contentPresenter" Value="{StaticResource Button.Disabled.Foreground}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Button.Style>
</Button>