Bring To View Treeview Xamarin

<ContentPage.Behaviors>
    <local:TreeViewBehavior/>
</ContentPage.Behaviors>

<ContentPage.BindingContext>
    <local:FileManagerViewModel x:Name="viewModel"/>
</ContentPage.BindingContext>

<StackLayout>
    <Button x:Name="bringIntoView" Text="BringIntoView" HeightRequest="50"/>
    <syncfusion:SfTreeView x:Name="treeView" ChildPropertyName="SubFiles" ItemTemplateContextType="Node" AutoExpandMode="AllNodesExpanded" ItemsSource="{Binding ImageNodeInfo}">
        <syncfusion:SfTreeView.ItemTemplate>
            <DataTemplate>
                <Grid x:Name="grid" RowSpacing="0" >
                    <Grid.ColumnDefinitions>
                        <ColumnDefinition Width="40" />
                        <ColumnDefinition Width="*" />
                    </Grid.ColumnDefinitions>
                    <Image Source="{Binding Content.ImageIcon}" VerticalOptions="Center" HorizontalOptions="Center" HeightRequest="35" WidthRequest="35"/>
                    <Grid Grid.Column="1" RowSpacing="1" Padding="1,0,0,0" VerticalOptions="Center">
                        <Label LineBreakMode="NoWrap" Text="{Binding Content.ItemName}" VerticalTextAlignment="Center"/>
                    </Grid>
                </Grid>
            </DataTemplate>
        </syncfusion:SfTreeView.ItemTemplate>
    </syncfusion:SfTreeView>
</StackLayout>

public class TreeViewBehavior : Behavior<ContentPage>
{
    #region Fields

    private SfTreeView TreeView;
    private Button Button;
    #endregion

    #region Overrides
    protected override void OnAttachedTo(ContentPage bindable)
    {
        TreeView = bindable.FindByName<SfTreeView>("treeView");
        Button = bindable.FindByName<Button>("bringIntoView");
        Button.Clicked += BringIntoView_Clicked;

        base.OnAttachedTo(bindable);
    }

    protected override void OnDetachingFrom(ContentPage bindable)
    {
        Button.Clicked -= BringIntoView_Clicked;
        Button = null;
        TreeView = null;
        base.OnDetachingFrom(bindable);
    }

    #endregion

    #region CallBack
    private void BringIntoView_Clicked(object sender, EventArgs e)
    {
        var viewModel = (sender as Button).BindingContext as FileManagerViewModel;
        var count = viewModel.ImageNodeInfo.Count;
        var data = viewModel.ImageNodeInfo[count - 1];
        TreeView.BringIntoView(data);
    }
    #endregion
}