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Asked: 2026-05-26T02:05:13+00:00

I have the following code (only relevant snippets) <ribbon:RibbonWindow ………….> <Grid> <ribbon:Ribbon> <ribbon:RibbonToggleButton x:Name=Button2

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I have the following code (only relevant snippets)

<ribbon:RibbonWindow .............>
    <Grid>
        <ribbon:Ribbon>
            <ribbon:RibbonToggleButton 
                   x:Name="Button2"
                   SmallImageSource="Images\SmallIcon.png"
                   Label="Properties">
                   <ribbon:RibbonToggleButton.Triggers>
                       <Trigger Property="ToggleButton.IsChecked" Value="True">
                           <Setter TargetName="SPanel1" Property="UIElement.IsVisible" Value="False"/>
                           <Setter TargetName="SPanel2" Property="UIElement.IsVisible" Value="True"/>

                       </Trigger>
                   </ribbon:RibbonToggleButton.Triggers>

            </ribbon:RibbonToggleButton>


        </ribbon:Ribbon>
    </Grid>

</ribbon:RibbonWindow>

And when i run the application, it hangs up and te debugger pops up. What am i doing wrong?

I have tried setting the trigger on the grid, wrapping everything in a control template and setting a trigger there, same problem!

Edit

I have tried creating a button, and only the tag of trigger causes the Unhandled Exception error.

<Button Content="Button" Grid.Row="1" Height="23" HorizontalAlignment="Left" Margin="12,27,0,0" Name="TestButton" VerticalAlignment="Top" Width="75" >
      <Button.Triggers>
           <Trigger></Trigger>
      </Button.Triggers>
</Button>

Edit 2

Using Data triggers makes the Unhandled Exception go away but the trigger is not responding:

 <StackPanel.Style>
                <Style TargetType="StackPanel">
                    <Style.Triggers>
                        <DataTrigger Binding="{Binding ElementName=Button2, Path=ToggleButton.IsChecked}" Value="True">
                            <Setter Property="UIElement.Visibility" Value="Hidden"></Setter>
                        </DataTrigger>

                    </Style.Triggers>
                </Style>
            </StackPanel.Style>

Edit 3

<ribbon:RibbonToggleButton 
              x:Name="Button2"
              SmallImageSource="Images\SmallIcon.png"
              Label="Properties">

</ribbon:RibbonToggleButton>

And The panel to be hidden

<StackPanel                  
      Grid.Row="2"                   
      Grid.Column="1"                       
      x:Name="SPanel1"
      Visibility="Visible">                        
      <Label>*Deafult Grid*</Label>   
<StackPanel.Style>                           
     <Style TargetType="StackPanel">                               
          <Style.Triggers>                                   
              <DataTrigger Binding="{Binding ElementName=Button2, Path=ToggleButton.IsChecked}" Value="True">                                     
               <Setter Property="UIElement.Visibility" Value="Hidden"></Setter>                                                                
              </DataTrigger>                                
          </Style.Triggers>                            
     </Style>
                </StackPanel.Style>
</StackPanel>

And for second StackPanel that i want to show

<StackPanel 
     Grid.Row="2" 
     Grid.Column="1" 
     x:Name="SPanel2"
     Visibility="Hidden">
         <Label>*Panel 2 *</Label>
         <StackPanel.Style>
             <Style TargetType="StackPanel">
                 <Style.Triggers>
                     <DataTrigger Binding="{Binding ElementName=Button2, Path=IsChecked}" Value="True">
                     <Setter Property="UIElement.Visibility" Value="Visible"></Setter>
                     </DataTrigger>

                 </Style.Triggers>
             </Style>
         </StackPanel.Style>
 </StackPanel>
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1 Answer

  1. Editorial Team

    You need to use DataTrigger, and set the style property of the two panels to the IsChecked propery of the checkbox, here an example

            <CheckBox Name="check" Content="Prova" IsChecked="True"> </CheckBox>

        <Canvas Name="SPanel1" Background="Blue" Width="100" Height="100">
            <Canvas.Style>
                <Style TargetType="Canvas">
                    <Style.Triggers>
                        <DataTrigger Binding="{Binding ElementName=check, Path=IsChecked}" Value="True">
                             <Setter Property="Visibility" Value="Hidden"></Setter>
                        </DataTrigger>
                    </Style.Triggers>
                </Style>
            </Canvas.Style>
        </Canvas>
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