XAML - 通用文本stylewith触发/参数？ [英] XAML - Generic textbox stylewith triggers / parameters?

问题描述

我希望能有一个通用的风格模板，可以切换我的文本框基于一个布尔颜色。但我不希望有创建一个独特的风格为每一个文本框。如何做到这一点？

我已经把下面我怎么会想到这个工作，一些示例code。 三个文本框，都具有不同绑定，但在尝试使用相同的模板选择基于一个布尔红色或绿色。

感谢

 ＆LT; TextBlock的文本={结合文本1}风格= {DynamicResource MyTextBoxTemplate}的DataContext ={结合MyBool1}/＆GT;
＆LT; TextBlock的文本={结合文本2}风格= {DynamicResource MyTextBoxTemplate}的DataContext ={结合MyBool2}/＆GT;
＆LT; TextBlock的文本={结合文本3}风格= {DynamicResource MyTextBoxTemplate}的DataContext ={结合MyBool3}/＆GT;

            ＆LT;风格X：关键=MyTextBoxTemplate的TargetType =TextBlock的＆GT;
                ＆LT; Style.Triggers＆GT;
                    ＆LT; D​​ataTrigger值=真绑定={结合???}＆GT;
                        ＆LT; setter属性=前景VALUE =绿色/＆GT;
                    ＆LT; / DataTrigger＆GT;
                    ＆LT; D​​ataTrigger值=FALSE绑定={结合???}＆GT;
                        ＆LT; setter属性=前景VALUE =红/＆GT;
                    ＆LT; / DataTrigger＆GT;
                ＆LT; /Style.Triggers>
            ＆LT; /样式和GT;
 

解决方案

您可以使用的标记文本框的属性。

 ＆LT; TextBlock的文本={结合文本1}风格= {DynamicResource MyTextBoxTemplate}标签={结合MyBool1}/＆GT;
＆LT; TextBlock的文本={结合文本2}风格= {DynamicResource MyTextBoxTemplate}标签={结合MyBool2}/＆GT;
＆LT; TextBlock的文本={结合文本3}风格= {DynamicResource MyTextBoxTemplate}标签={结合MyBool3}/＆GT;

＆LT;风格X：关键=MyTextBoxTemplate的TargetType =TextBlock的＆GT;
＆LT; Style.Triggers＆GT;
＆LT;触发属性=变量VALUE =真＆GT;
＆LT; setter属性=前景VALUE =绿色/＆GT;
＆LT; /触发＆GT;
＆LT;触发属性=标签值=FALSE＆GT;
＆LT; setter属性=前景VALUE =红/＆GT;
＆LT; /触发＆GT;
＆LT; /Style.Triggers>
＆LT; /样式和GT;
 

I want to be able to have a generic style template that can switch colors of my textboxes based on a bool. But I don't want to have to create a unique style for each textbox. How do I do this?

I have put some sample code below how I might expect this to work. Three textboxes, all with different bindings but attempting to use the same template to select red or green colour based on a bool.

Thanks

<TextBlock Text="{Binding Text1}" Style={DynamicResource MyTextBoxTemplate} DataContext="{Binding MyBool1}" />
<TextBlock Text="{Binding Text2}" Style={DynamicResource MyTextBoxTemplate} DataContext="{Binding MyBool2}" />
<TextBlock Text="{Binding Text3}" Style={DynamicResource MyTextBoxTemplate} DataContext="{Binding MyBool3}" />

            <Style x:Key="MyTextBoxTemplate" TargetType="TextBlock">
                <Style.Triggers>
                    <DataTrigger Value="True" Binding="{Binding ???}">
                        <Setter Property="Foreground" Value="Green" />
                    </DataTrigger>
                    <DataTrigger Value="False" Binding="{Binding ???}">
                        <Setter Property="Foreground" Value="Red" />
                    </DataTrigger>
                </Style.Triggers>
            </Style>

解决方案

You can use the Tag property of TextBox

<TextBlock Text="{Binding Text1}" Style={DynamicResource MyTextBoxTemplate} Tag="{Binding MyBool1}" />
<TextBlock Text="{Binding Text2}" Style={DynamicResource MyTextBoxTemplate} Tag="{Binding MyBool2}" />
<TextBlock Text="{Binding Text3}" Style={DynamicResource MyTextBoxTemplate} Tag="{Binding MyBool3}" />

<Style x:Key="MyTextBoxTemplate" TargetType="TextBlock">
	<Style.Triggers>
		<Trigger Property="Tag" Value="True">
			<Setter Property="Foreground" Value="Green" />
		</Trigger>
		<Trigger Property="Tag" Value="False">
			<Setter Property="Foreground" Value="Red" />
		</Trigger>
	</Style.Triggers>
</Style>

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