我想在按钮时更改按钮图像IsEnabled == False.
下面是我的示例，当我将它们更改为时，绑定很好False/True它仍然不起作用。
<Button x:Name="btnBackward" Grid.Column="0" Grid.Row="2" Command="{Binding UserWorkflowManager.NavigateBackward}" IsEnabled="{Binding UserWorkflowManager.NavigateBackwardEnable}" Grid.RowSpan="2">
<Button.Template>
<ControlTemplate>
<Image Name="_image" HorizontalAlignment="Center" VerticalAlignment="Center" Stretch="Uniform">
<Image.Style>
<Style TargetType="Image">
<Setter Property="Source" Value="/UserWorkflow.View;component/Images/LDC500_butX_PreviousPane_norm.bmp" />
<Style.Triggers>
<DataTrigger Binding="{Binding ElementName=btnBackward, Path=IsEnabled}" Value="False">
<Setter Property="Source" Value="/UserWorkflow.View;component/Images/LDC500_butX_PreviousPane_dis.bmp"/>
</DataTrigger>
</Style.Triggers>
</Style>
</Image.Style>
</Image>
</ControlTemplate>
</Button.Template>
</Button>
尝试以下操作
<Style.Triggers>
<DataTrigger Binding="{Binding IsEnabled,RelativeSource={RelativeSource AncestorType=Button}}" Value="False">
<Setter Property="Source" Value="/UserWorkflow.View;component/Images/LDC500_butX_PreviousPane_dis.bmp"/>
</DataTrigger>
</Style.Triggers>
或者像这样直接在控件模板中添加触发器
<ControlTemplate>
<Image Name="_image" HorizontalAlignment="Center">
..........
</Image>
<ControlTemplate.Triggers>
<Trigger Property="IsEnabled" Value="false">
<Setter TargetName="_image" Property="Source" Value="/UserWorkflow.View;component/Images/LDC500_butX_PreviousPane_dis.bmp" />
</Trigger>
</ControlTemplate.Triggers>
</ControlTemplate>
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