How to trigger .NET MAUI Expander only by tapping a specific element in header?

This article illustrates triggering the expander expand/collapse action only when tapping a specific element within the header for .NET MAUI SfExpander. In this example, we will trigger the expander expand/collapse action only when tapping the specific element within the header.

Initialize the SfExpander with the required properties. Then, in the expander header, you can add the specific element here for example added the Image with GestureRecognizers.This setup allows you to manually toggle the expansion by tapping the image, ensuring that the expand/collapse action is activated only when the image is tapped, rather than any area of the header.

XAML:

   <ContentPage.Content>
       <StackLayout Padding="20">
           <syncfusion:SfExpander x:Name="expander">
               <syncfusion:SfExpander.Header>
                   <StackLayout Orientation="Horizontal">
                       <Label Text="Header"
                      VerticalOptions="Center"
                      HorizontalOptions="StartAndExpand"/>
                       <Image Source="dotnet_bot.png"        
                              WidthRequest="200"    
                              HeightRequest="50"
                      VerticalOptions="Center"
                      HorizontalOptions="End">
                           <Image.GestureRecognizers>
                               <TapGestureRecognizer    
                                  Tapped="OnExpandIconTapped"/>
                           </Image.GestureRecognizers>
                       </Image>
                   </StackLayout>
               </syncfusion:SfExpander.Header>
               <syncfusion:SfExpander.Content>
                   <Label Text="Expander Content"/>
               </syncfusion:SfExpander.Content>
           </syncfusion:SfExpander>
       </StackLayout>
   </ContentPage.Content>

MainPage.xaml.cs

   private void OnExpandIconTapped(object sender, TappedEventArgs e)
   {
       expander.IsExpanded = !expander.IsExpanded;
   }

Download the complete sample from GitHub

Conclusion

I hope you enjoyed learning how to trigger .NET MAUI Expander only by tapping a specific element in header.
You can refer to our .NET MAUI Expander feature tour page to know about its other groundbreaking feature representations and documentation, and how to quickly get started with configuration specifications.
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