C# 更改按钮';s基于背景色的鼠标悬停颜色
我一直在想如何更改按钮的悬停颜色,我发现: 但这只是我努力实现的目标的一半。我想根据当前背景色更改悬停颜色。i、 e 默认按钮背景色:灰色 我点击它,按钮的背景色将变成红色。悬停颜色应更改为粉红色 我再次单击它,按钮的背景色将变为绿色。悬停颜色应更改为浅绿色 这在标记和代码隐藏中是否可能?怎么做?XAML:C# 更改按钮';s基于背景色的鼠标悬停颜色,c#,wpf,C#,Wpf,我一直在想如何更改按钮的悬停颜色,我发现: 但这只是我努力实现的目标的一半。我想根据当前背景色更改悬停颜色。i、 e 默认按钮背景色:灰色 我点击它,按钮的背景色将变成红色。悬停颜色应更改为粉红色 我再次单击它,按钮的背景色将变为绿色。悬停颜色应更改为浅绿色 这在标记和代码隐藏中是否可能?怎么做?XAML: <Button Content="Color change" Background="{Binding BackGround}" Command="{Binding ButtonPre
<Button Content="Color change" Background="{Binding BackGround}" Command="{Binding ButtonPressedCommand}">
<Button.Template>
<ControlTemplate TargetType="Button">
<Border Name="Border" Background="{Binding RelativeSource={RelativeSource TemplatedParent}, Path=Background, Mode=OneWay}">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center"/>
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter Property="Background" TargetName="Border"
Value="{Binding BackGroundOnHover}"/>
</Trigger>
<Trigger Property="IsMouseOver" Value="False">
<Setter Property="Background" TargetName="Border"
Value="{Binding BackGround}"/>
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Button.Template>
</Button>
class MainViewModel : INotifyPropertyChanged
{
private Brush _backGround = new SolidColorBrush(Colors.Red);
public Brush BackGround
{
get { return _backGround; }
set
{
_backGround = value;
OnPropertyChanged();
}
}
private Brush _backGroundOnHover;
public Brush BackGroundOnHover
{
get
{
if (_backGroundOnHover == null)
SetHoverBackGround();
Debug.WriteLine(((SolidColorBrush)_backGroundOnHover).Color.R);
return _backGroundOnHover;
}
set
{
_backGroundOnHover = value;
OnPropertyChanged();
}
}
private RelayCommand _buttonPressedCommand;
public RelayCommand ButtonPressedCommand
{
get
{
return _buttonPressedCommand ??
(_buttonPressedCommand = new RelayCommand(SetBackgroundWhenButtonPressed));
}
}
private void SetBackgroundWhenButtonPressed()
{
var color = ((SolidColorBrush)BackGround).Color;
BackGround = new SolidColorBrush(Color.FromRgb((byte)(color.R - 5), color.G, color.B));
SetHoverBackGround();
}
private void SetHoverBackGround()
{
var color = ((SolidColorBrush)BackGround).Color;
BackGroundOnHover = new SolidColorBrush(Color.FromRgb((byte)(255-color.R ), color.G, color.B));
}
public void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
if (PropertyChanged != null)
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
public event PropertyChangedEventHandler PropertyChanged;
}
无论何时单击,它都会更改背景颜色,并在鼠标结束时同时更改颜色。按钮样式完全采用XAML。 首先定义两个
solidcolorbush
一个从另一个继承color
,但定义第二个笔刷不透明度
<Window.Resources>
<SolidColorBrush x:Key="ButtonBrush" Color="red" />
<SolidColorBrush x:Key="shadedButtonBrush" Color="{Binding Source={StaticResource ButtonBrush}, Path=Color}" Opacity="0.5" />
<Style TargetType="Button">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="Button">
<Border x:Name="custBorder" Background="{TemplateBinding Background}">
<ContentPresenter HorizontalAlignment="Center" VerticalAlignment="Center" />
</Border>
<ControlTemplate.Triggers>
<Trigger Property="IsMouseOver" Value="True">
<Setter TargetName="custBorder" Property="Background" Value="{StaticResource shadedButtonBrush}" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
</Window.Resources>
<Button Background="{StaticResource ButtonBrush}">
Button
</Button>
按钮
如果你想改变按钮的颜色,只需改变ButtonBush的颜色,一切都会自动调整