我创建了一个自定义控制项
Generic.xaml代码在下面-
<BitmapImage x:Key="RightImaGE" x:Name="imgD" UriSource="/XYZ.UI_Test;components/Resources/Pfad55-1.png"/>
<Style TargetType="{x:Type local1:CustomButton}" >
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local1:CustomButton}">
<!--<Image Name="imgDefault" Source="{TemplateBinding Image}" Stretch="UniformToFill" />-->
<ControlTemplate.Triggers>
<DataTrigger Binding="{Binding Path=ContentOff, RelativeSource={RelativeSource AncestorType=local1:CustomButton}}" Value="SETTINGS">
<Setter Property="Background" Value="Red"/>
<Setter Property="Image.Source" Value="{DynamicResource RightImaGE}" />
</DataTrigger>
</ControlTemplate.Triggers>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
下面的CustomButton.cs代码位于下面
public string ContentOff
{
get { return (string)GetValue(ContentOffProperty); }
set { SetValue(ContentOffProperty, value); }
}
public static readonly DependencyProperty ContentOffProperty =
DependencyProperty.Register("ContentOff",
typeof(string), typeof(CustomButton), new PropertyMetadata(null));
public ImageSource Image
{
get { return (ImageSource)GetValue(ImageProperty); }
set { SetValue(ImageProperty, value); }
}
public static readonly DependencyProperty ImageProperty =
DependencyProperty.Register("Image", typeof(ImageSource), typeof(CustomButton), new PropertyMetadata(default(ImageSource)));
我在下面的app.xaml代码中定义了一种通用样式
<Application.Resources>
<Style x:Key="BigButtonStyle" TargetType="local:CustomButton" >
<Setter Property="Control.Background" Value="Transparent"/>
<Setter Property="VerticalAlignment" Value="Center"/>
<Setter Property="HorizontalAlignment" Value="Left"/>
<Setter Property="HorizontalContentAlignment" Value="Center"/>
<Setter Property="Margin" Value="1"/>
<Setter Property="FontSize" Value="27"/>
<Setter Property="FontWeight" Value="Bold"/>
<Setter Property="Foreground" Value="#1d5560"/>
<Setter Property="Width" Value="170"/>
<Setter Property="MaxHeight" Value="50"/>
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:CustomButton}">
<Canvas Margin="1">
<Image x:Name="img" Source="Resources/Pfad55.png" Stretch="UniformToFill" >
<Image.Style>
<Style TargetType="{x:Type Image}">
<Setter Property="Source" Value="Resources/Pfad55.png" />
<!--<Style.Triggers>
--><!--<Trigger Property="ContentOff" Value="SETTINGS">
<Setter Property="Opacity" Value="0.5" />
</Trigger>--><!--
</Style.Triggers>-->
</Style>
</Image.Style>
</Image>
<ContentPresenter HorizontalAlignment="Center" Content="{TemplateBinding ContentOff}" Canvas.Top="14" Canvas.Left="47"
VerticalAlignment="Center"/>
</Canvas>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
现在我在使用Mainbutton.Main的Mainwindows.xaml,如果按钮的内容是Settings,它应该通过触发器更改与bigbuttonstyle中定义的普通图像不同的图像。
<Controls:CustomButton Grid.Row="8" Grid.Column="2" Style="{StaticResource BigButtonStyle}"
ContentOff="SETTINGS"
Image="Resources/Pfad55-1.png"/>
我尝试在此处使用数据触发器,但不起作用,也尝试了属性触发器。但是图像没有以某种方式改变。
您可以在样式继承中使用两种不同的样式-
<Style x:Key="SmallButtonStyle" TargetType="local:CustomButton" BasedOn="{StaticResource BigButtonStyle}">
<Setter Property="Template">
<Setter.Value>
<ControlTemplate TargetType="{x:Type local:CustomButton}">
<Canvas Margin="1">
<Image Source="Resources/Pfad55-1.png" Stretch="UniformToFill" ></Image>
<ContentPresenter HorizontalAlignment="Center" Content="{TemplateBinding ContentOff}" Canvas.Top="14" Canvas.Left="85"
VerticalAlignment="Center"/>
</Canvas>
</ControlTemplate>
</Setter.Value>
</Setter>
</Style>
然后使用它
<Controls:CustomButton Grid.Row="8" Grid.Column="2" Style="{StaticResource SmallButtonStyle}"
ContentOff="SETTINGS"
Image="Resources/Pfad55-1.png"/>
它将正常运行,但没有触发。