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

Posted on 2010-11-24
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1,004 Views
Last Modified: 2013-11-12
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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Question by:JElster
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8 Comments
 
LVL 96

Expert Comment

by:Bob Learned
ID: 34209694
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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LVL 1

Author Comment

by:JElster
ID: 34209812
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
0
 
LVL 96

Expert Comment

by:Bob Learned
ID: 34210532
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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LVL 1

Author Comment

by:JElster
ID: 34212122
I want to trigger on only paragraphs that have a tag like 'para_with_formatting'
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LVL 96

Accepted Solution

by:
Bob Learned earned 350 total points
ID: 34217704
<Trigger Property="IsMouseOver" Value="True">

     needs to become

<Trigger Property="Tag" Value="para_with_formatting">
0
 
LVL 1

Author Comment

by:JElster
ID: 34225240
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>
0
 
LVL 96

Expert Comment

by:Bob Learned
ID: 34227186
Did you figure out the conditions for the MultiTrigger?
0
 
LVL 1

Author Comment

by:JElster
ID: 34227210
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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