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WPF的按钮提供了Template模板,可以通过修改Template模板中的内容对按钮的样式进行自定义,完整代码Github自取。
使用Style定义扁平化的按钮样式
定义一个ButtonStyleDictonary.xaml
资源字典文件,在Control Template中定义一个带Border的按钮,然后定义Trigger
作为改变样式的触发器
<Style x:Key="FlatButtonStyle" TargetType="Button"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Button"> <Border x:Name="border" Background="{TemplateBinding Background}" BorderBrush="{TemplateBinding BorderBrush}" BorderThickness="{TemplateBinding BorderThickness}" SnapsToDevicePixels="True"> <TextBlock Text="{TemplateBinding Content}" Foreground="{TemplateBinding Foreground}" VerticalAlignment="Center" HorizontalAlignment="Center"/> </Border> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Setter TargetName="border" Property="Background" Value="#2f96b4"/> </Trigger> <Trigger Property="IsPressed" Value="True"> <Setter TargetName="border" Property="Background" Value="red"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style>
WPF中使用ResourceDictonary 资源字典
引入在资源字典文件中定义公共的Template,然后在xaml窗口、自定义控件或者整个App当中调用
<Window.Resources> <ResourceDictionary> <ResourceDictionary.MergedDictionaries> <ResourceDictionary Source="ButtonStyleDictonary.xaml"></ResourceDictionary> </ResourceDictionary.MergedDictionaries> </ResourceDictionary> </Window.Resources>
然后就可以在窗体的xaml中应用刚才定义的属性了
<Button Style="{StaticResource FlatButtonStyle}" Width="64" Height="28"> Hello </Button>
使用Style和Polygon自定义Button的外形
<Style x:Key="ArrowButtonStyle" TargetType="Button"> <Setter Property="Template"> <Setter.Value> <ControlTemplate TargetType="Button"> <Polygon x:Name="border" Fill="{TemplateBinding Background}" Points="0,0 2,0 1,1" Stroke="Black" StrokeThickness="2" SnapsToDevicePixels="True" Stretch="Uniform"/> <ControlTemplate.Triggers> <Trigger Property="IsMouseOver" Value="True"> <Setter TargetName="border" Property="Fill" Value="gray"/> </Trigger> <Trigger Property="IsPressed" Value="True"> <Setter TargetName="border" Property="Fill" Value="red"/> </Trigger> </ControlTemplate.Triggers> </ControlTemplate> </Setter.Value> </Setter> </Style>
效果如下