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 **[View document in Syncfusion Xamarin Knowledge base](https://www.syncfusion.com/kb/12143/how-to-work-with-listview-sflistview-and-expander-sfexpander-in-xamarin-forms)**
+
+## Sample
+
+```xaml
+<StackLayout>
+    <expander:SfExpander DynamicSizeMode="Content" HeaderIconPosition="End" IconColor="WhiteSmoke" HeaderBackgroundColor="#03506f" >
+        <expander:SfExpander.Header>
+            <Grid HeightRequest="50">
+                <Label Text="InBox" TextColor="White" HorizontalOptions="CenterAndExpand" VerticalOptions="CenterAndExpand"/>
+            </Grid>
+        </expander:SfExpander.Header>
+        <expander:SfExpander.Content>
+            <extListView:ExtendedListView x:Name="listView" ItemsSource="{Binding InboxInfo}" ItemSpacing="1" ItemSize="70">
+                <extListView:ExtendedListView.ItemTemplate>
+                    <DataTemplate>
+                        <code>
+                        . . .
+                        . . .
+                        <code>
+                    </DataTemplate>
+                </extListView:ExtendedListView.ItemTemplate>
+            </extListView:ExtendedListView>
+        </expander:SfExpander.Content>
+    </expander:SfExpander>
+</StackLayout>
+
+C#:
+public class ExtendedListView : SfListView
+{
+    VisualContainer container;
+
+    public ExtendedListView()
+    {
+        container = this.GetVisualContainer();
+        container.PropertyChanged += Container_PropertyChanged;
+    }
+
+    private void Container_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
+    {
+        Device.BeginInvokeOnMainThread(async() =>
+        {
+            var extent = (double)container.GetType().GetRuntimeProperties().FirstOrDefault(container => container.Name == "TotalExtent").GetValue(container);
+            await Task.Delay(250);
+
+            if (e.PropertyName == "Height")
+                this.HeightRequest = extent;
+        });
+    }
+}
+```