c# - 提取相同的属性以在 WPF XAML 中设置样式

Question

我无法将一些属性提取到我的 Xaml 文件中的元素样式。我有很多重复的 block ，例如:

<controls:RoundableToggleRadioButton Style="{StaticResource RoundableToggleRadioButtonStyle}">
<StackPanel>
    <Image Width="32"
           Margin="2"
           Source="Images/inbox_upload.png" />
    <TextBlock Margin="2"
               Foreground="White"
               Text="Extract"
               TextAlignment="Center" />
</StackPanel>

所以我想为每个按钮提取相同的属性以设置样式并能够更改图像和文本。像这样:

<Setter Property="ContentTemplate">
<Setter.Value>
    <DataTemplate>
        <StackPanel>
            <Image Width="32"
                   Margin="2" />
            <TextBlock Margin="2"
                       Foreground="White"
                       TextAlignment="Center" />
        </StackPanel>
    </DataTemplate>
</Setter.Value>

<controls:RoundableToggleRadioButton Style="{StaticResource RoundableToggleRadioButtonStyle}">
<StackPanel>
    <Image Source="Images/inbox_upload.png" />
    <TextBlock Text="Extract"/>
</StackPanel>

那有可能吗？或者有一些解决方法？感谢您的帮助)))

Answer 1

创建继承Button的新类

public class ImageTextButton : Button
{
    public static readonly DependencyProperty IconProperty =
        DependencyProperty.Register("Icon", typeof (ImageSource), typeof (ImageTextButton), null);

    public static readonly DependencyProperty TextProperty =
        DependencyProperty.Register("Text", typeof (string), typeof (ImageTextButton), null);

    public ImageTextButton()
    {
        this.DefaultStyleKey = typeof(ImageTextButton);
    }

    public ImageSource Icon
    {
        get { return (ImageSource) GetValue(IconProperty); }
        set { SetValue(IconProperty, value); }
    }

    public string Text
    {
        get { return (string) GetValue(TextProperty); }
        set { SetValue(TextProperty, value); }
    }
}

xaml

<Window x:Class="WpfApplication3.MainWindow"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:wpfApplication3="clr-namespace:WpfApplication3"
    Title="MainWindow" Height="350" Width="525">
<Window.Resources>
    <Style TargetType="{x:Type wpfApplication3:ImageTextButton}">
        <Setter Property="Template">
            <Setter.Value>
                <ControlTemplate TargetType="{x:Type wpfApplication3:ImageTextButton}">
                    <StackPanel Height="Auto" Orientation="Horizontal">
                        <Image Source="{TemplateBinding Icon}" Stretch="Fill"/>
                        <TextBlock Text="{TemplateBinding Text}"/>
                    </StackPanel>
                </ControlTemplate>
            </Setter.Value>
        </Setter>
    </Style>
</Window.Resources>
<Grid>
    <wpfApplication3:ImageTextButton Text="Submit" Icon="Hydrangeas.jpg"></wpfApplication3:ImageTextButton>
</Grid>

除了创建新的 Text 属性，您还可以使用 Button 的 Content 属性。