Control.Tag ,Triggers and custom class

Question

Hi,

Until now I used a simple tag on a textbox to change its appearance
e.g.
 <Trigger Property="Tag" Value="Stuff">
      <Setter Property="BorderBrush" TargetName="Border" Value="#FF0000"/>
 </Trigger>

Now the problem grew slighty more complex and I need cram more data into that tag.
e.g.
public class ExtendedTagInfo {
  public string Info {get;set;}
  public string MoreInfo {get;set;}
}

It works fine in 'normal' code but then there's this pesky trigger.

 <Trigger Property="Tag.Info" Value="Stuff">

won't compile.

This is small part of a huge project and sadly I think I'd get into serious trouble if I just go ahead and create a special user control that suits my needs. The textbox style in question is used hundreds of times all over the project.

Any idea on how to get this thing to work "in style"?

TIA

Answer 1

Hi,
Use Data Trigger and bind to the Tag property

 <TextBox Height="23" Margin="81,60,77,0" Name="TextBox1" VerticalAlignment="Top" >
            <TextBox.Style>
                <Style TargetType="{x:Type TextBox}">
                    <Style.Triggers>
                        <DataTrigger Binding="{Binding RelativeSource={RelativeSource Self}, Path=Tag.Info}" Value="Yes" >
                            <Setter Property="Background" Value="Red"/>
                        </DataTrigger>
                    </Style.Triggers>  
                </Style>
            </TextBox.Style>  
        </TextBox>

Hope it helps

---

Please mark posts as answers/helpful if it answers your query. This would be helpful for others facing the same kind of problem