我有一个针对ToggleButton
的自定义控件,该控件也适用于Button
。所以我想为这两种类型使用通用的默认ControlTemplate
。
我尝试的策略是在模板中设置TargetType="{x:Type ButtonBase}"
,如果在Button
或ToggleButton
上明确设置,则此工作正常。
在项目根目录的Themes文件夹中名为Generic.xaml的资源字典中......
<Style TargetType="{x:Type ButtonBase}">
<Setter Property="Template">
<Setter.Value>
<!--Modified Control Template-->
<ControlTemplate TargetType="{x:Type ButtonBase}">
在控件的类中,我使用FrameworkElement.DefaultStyleKey在其静态构造函数中设置用户控件类型的元数据...
static ContentToggle()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(ContentToggle),
new FrameworkPropertyMetadata(typeof(ButtonBase)));
}
...的App.xaml
<Application x:Class="Spec.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
StartupUri="MainWindow.xaml">
<Application.Resources>
<ResourceDictionary>
<!--Get a reference to the window to establish View Context-->
<RelativeSource x:Key="View" Mode="FindAncestor"
AncestorType="{x:Type Window}" />
<ResourceDictionary.MergedDictionaries>
<!--Local Style-->
<ResourceDictionary Source="pack://application:,,,/ButtonStyle.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Application.Resources>
</Application>
... MainWindow.xaml
<Window x:Class="Spec.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:b="clr-namespace:ContentToggleButton;assembly=ContentToggleButton"
Title="MainWindow" Height="350" Width="525">
<Grid>
<b:ContentToggle Name="Toggle" Height="30"
Content="{Binding options, RelativeSource={StaticResource View}}"
/>
</Grid>
</Window>
MainWindow.xaml.cs
public partial class MainWindow : Window
{
public List<string> options { get; set; }
public bool initialState { get; set; }
public MainWindow ()
{
options = new List<string> { "Checked", "UnChecked" };
initialState = false;
InitializeComponent();
}
}
还有一个名为ButtonStyle.xaml的文件,它定义了自定义控件使用的画笔。它通过App.xaml中的合并字典在应用程序的根目录中公开。
ContentToggle instance
的模板为null,样式控件没有视觉效果(当我窥探控件时,它没有子元素。)
我的理解是自动ButtonBase
样式/模板将用于我的控制。我错过了什么?
如果在控件上显式声明了样式/模板,则自定义控件将按预期工作。以下方法适用于将样式目标设置为ButtonBase
...
在App.xaml中......
<Application x:Class="Spec.App"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
StartupUri="MainWindow.xaml">
<Application.Resources>
<ResourceDictionary>
<!--Get a reference to the window to establish View Context-->
<RelativeSource x:Key="View" Mode="FindAncestor"
AncestorType="{x:Type Window}" />
<ResourceDictionary.MergedDictionaries>
<!--custom control-->
<ResourceDictionary Source="pack://application:,,,/ContentToggleButton;component/Themes/Generic.xaml" />
<!--Local Style-->
<ResourceDictionary Source="pack://application:,,,/ButtonStyle.xaml" />
</ResourceDictionary.MergedDictionaries>
</ResourceDictionary>
</Application.Resources>
</Application>
在MainWindow.xaml ...
<Window x:Class="Spec.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:b="clr-namespace:ContentToggleButton;assembly=ContentToggleButton"
Title="MainWindow" Height="350" Width="525">
<Grid>
<b:ContentToggle Name="Toggle" Height="30"
Content="{Binding options, RelativeSource={StaticResource View}}"
Style="{DynamicResource LocalButtonStyle}"
/>
</Grid>
</Window>
在ButtonStyle.xaml ...
<ResourceDictionary xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
<!--Custom Button backgrounds-->
<LinearGradientBrush x:Key="Button.Static.Background"
EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FF2C0606" Offset="1"/>
<GradientStop Color="#E6ADAD"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="Button.MouseOver.Background" EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FF2C0606" Offset="1"/>
<GradientStop Color="#FFF2F2"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="Button.MouseOver.Checked.Background" EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FF2C0606" Offset="1"/>
<GradientStop Color="#F2FFF3"/>
</LinearGradientBrush>
<LinearGradientBrush x:Key="Button.Checked.Background" EndPoint="0.5,1" StartPoint="0.5,0">
<GradientStop Color="#FF2C0606" Offset="1"/>
<GradientStop x:Name="GradientStop" Color="#ADE6B1"/>
</LinearGradientBrush>
<!--Establish the style colours-->
<SolidColorBrush x:Key="Button.Static.Border" Color="#FF707070" />
<SolidColorBrush x:Key="Button.MouseOver.Border" Color="#FF3C7FB1" />
<SolidColorBrush x:Key="Button.Pressed.Background" Color="#C4F6CE" />
<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" />
<!--Custom Style-->
<Style x:Key="LocalButtonStyle" TargetType="{x:Type ButtonBase}" BasedOn="{StaticResource ButtonStyle}">
<Setter Property="HorizontalAlignment" Value="Stretch" />
<Setter Property="VerticalAlignment" Value="Center" />
<Setter Property="HorizontalContentAlignment" Value="Center" />
<Setter Property="VerticalContentAlignment" Value="Center" />
<Setter Property="Background"
Value="{StaticResource Button.Static.Background}"/>
<Setter Property="BorderBrush"
Value="{StaticResource Button.Static.Border}"/>
</Style>
</ResourceDictionary>
答案 0 :(得分:0)
我不知道为什么,但对于ButtonBase主题搜索根本不起作用(可能与它是抽象的相关)。即使您尝试使用ButtonBase
或类似方法找到FindResource
的样式 - 您也无法找到任何内容,即使您自己在Generic.xaml中定义它(对于其他控件,例如按钮你会发现一种风格)。
现在,为了解决您的特定问题,最简单的方法是为ContentTogger定义样式,但为ButtonBase定义模板(您可以将其移出单独的资源并重用):
<Style TargetType="{x:Type c:ContentToggle}">
<Setter Property="Template">
<Setter.Value>
<!-- move this template out to separate resource -->
<ControlTemplate TargetType="{x:Type ButtonBase}">
<Border Background="{TemplateBinding Background}"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
答案 1 :(得分:0)
在开始阅读您的问题介绍后,我建议采用以下方法。这只是一个给出基本想法的示例。
<强> Generic.xaml 强>
<Style x:Key="CommonStyle" TargetType="{x:Type Button}">
<Setter Property="Background" Value="Yellow"/>
<Setter Property="FontSize" Value="25"/>
</Style>
<Style TargetType="{x:Type local:CustomButton}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:CustomButton}">
<Border Background="{TemplateBinding Background}" CornerRadius="10"
BorderBrush="{TemplateBinding BorderBrush}"
BorderThickness="{TemplateBinding BorderThickness}">
<Button Style="{StaticResource CommonStyle}" Content="{TemplateBinding Content}" />
</Border>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
<强> CustomButton.cs 强>
public class CustomButton : ToggleButton
{
static CustomButton()
{
DefaultStyleKeyProperty.OverrideMetadata(typeof(CustomButton), new FrameworkPropertyMetadata(typeof(CustomButton)));
}
}
看看这是否能解决您的问题,否则我会尝试改进这个答案。