Help with TargetType - How do I selectivity set the targer to some and not others?

Hi..
I have the following XAML... But I want to apply it some Paragraphs and not others how can I do that?
thanks

   
           
            <Style TargetType="Paragraph">
                <Style.Triggers>
                    <Trigger Property="IsMouseOver" Value="True">
                        <Setter Property="TextDecorations" Value="Underline" />
                    </Trigger>
                </Style.Triggers>
            </Style>


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JElsterAsked:
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Bob LearnedCommented:
When you need to customize behavior for certain paragraphs, then you need to know how to differentiate each Paragraph object.  One possible solution might be to store something in the Tag property that will let you identify the paragraph.
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JElsterAuthor Commented:
Ok.. I can add a TAG to the paragraphs... I'm creating the paragraphs in code.
How do I apply the above style to only those paragraphs  e.g  Tag like 'para_With_Formatting'?
thx
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Bob LearnedCommented:
The Trigger behavior is dependent on the Paragraph.IsMouseOver property.  Are you asking for a combination trigger with Paragraph.Tag?

For multiple conditions, you would need a MultiTrigger:

<MultiTrigger>
      <MultiTrigger.Conditions>
        <Condition Property="Content" Value="a" />
        <Condition Property="IsMouseOver" Value="True" />
      </MultiTrigger.Conditions>
      <Setter Property="Visibility" Value="Collapsed" />
</MultiTrigger>

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JElsterAuthor Commented:
I want to trigger on only paragraphs that have a tag like 'para_with_formatting'
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Bob LearnedCommented:
<Trigger Property="IsMouseOver" Value="True">

     needs to become

<Trigger Property="Tag" Value="para_with_formatting">
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JElsterAuthor Commented:
I get the following message...

Error      5      'Tag' member is not valid because it does not have a qualifying type name.

  <MultiTrigger>
                <MultiTrigger.Conditions>
                    <Condition Property="Tag" Value="paragraph_with_hyperlink" />
                    <Condition Property="IsMouseOver" Value="True" />
                </MultiTrigger.Conditions>
               <Setter Property="TextDecorations" Value="Underline" />
            </MultiTrigger>
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Bob LearnedCommented:
Did you figure out the conditions for the MultiTrigger?
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JElsterAuthor Commented:
Yes...
 <Style TargetType="{x:Type Paragraph}">
                 <Style.Triggers>
                    <MultiTrigger>
                        <MultiTrigger.Conditions>
                            <Condition Property="IsMouseOver" Value="True" />
                            <Condition Property="Tag" Value="paragraph_with_hyperlink" />
                        </MultiTrigger.Conditions>
                        <Setter Property="TextDecorations" Value="Underline" />
                        <Setter Property="Foreground" Value="Blue"/>
                    </MultiTrigger>
                </Style.Triggers>
            </Style>
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