如何通过 WPF DataTrigger 在多值转换器中传递多个参数
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How to Pass multiple parameter in Multivalue Converter Over WPF DataTrigger
提问by B.Balamanigandan
I'm having four intProperty ProOne, ProTwo, ProThreeand ProFour
我有四个intProperty ProOne, ProTwo,ProThree和ProFour
I have to Implement the Boolean Logic ((ProOne == ProTwo) || (ProThree == ProFour))in the Multivalue Converter namely VisibilityCheckConverter. Based on the Logic the Multivalue Converter VisibilityCheckConverterreturns Trueor False.
我必须((ProOne == ProTwo) || (ProThree == ProFour))在多值转换器中实现布尔逻辑，即VisibilityCheckConverter. 根据多值转换器VisibilityCheckConverter返回的逻辑True或False。
Now I need to pass the four properties to the Converter over DataTrigger, Based on the Value, I have to change the Buttons Visibility to Visible
现在我需要通过 DataTrigger 将四个属性传递给 Converter，根据值，我必须将 Buttons Visibility 更改为 Visible
How does one write the a DataTrigger using Multivalue Converter with multiple parameters?
如何使用具有多个参数的多值转换器编写数据触发器？
Sample Piece of XAML Code:
XAML 代码示例：
<ControlTemplate.Triggers>
<DataTrigger Property="{Binding , Converter={StaticResource VisibilityCheckConverter,ConverterParameter=ProOne ProTwo ProThree ProFour}}" Value="true">
<Setter TargetName="Button" Property="Visibility" Value="Visible" />
</DataTrigger>
</ControlTemplate.Triggers>
回答by Nikhil Agrawal
You can do something like this
你可以做这样的事情
<Style.Triggers>
<DataTrigger Value="True">
<DataTrigger.Binding>
<MultiBinding Converter="{StaticResource VisibilityCheckConverter}">
<Binding Path="ProOne" />
<Binding Path="ProTwo" />
<Binding Path="ProThree" />
<Binding Path="ProFour" />
</MultiBinding>
</DataTrigger.Binding>
<Setter TargetName="Button" Property="Visibility" Value="Visible" />
</DataTrigger>
</Style.Triggers>
