Event Handler is null. What I am doing wrong?

Hi There,

I am trying to create a ListView with some specific template per cell, so I am using a class that inherits from the ViewCell class.

Here are the code

public class DefaultPageListViewTemplate : ViewCell
{
    public DefaultPageListViewTemplate()
    {
        Grid gridDefaultPage = new Grid
        {
            Padding = new Thickness(5, 10, 0, 0),
            ColumnDefinitions =
            {
                new ColumnDefinition {Width = new GridLength(2, GridUnitType.Auto)},
                new ColumnDefinition {Width = new GridLength(10, GridUnitType.Star)}
            },
            RowDefinitions =
            {
                new RowDefinition {Height = new GridLength(1, GridUnitType.Star)},
                new RowDefinition {Height = new GridLength(1, GridUnitType.Star)}
            }
        };

        CircleImage favoriteImage = new CircleImage
        {
            //HeightRequest = 42,
            WidthRequest = Device.OnPlatform(55, 55, 75),
            HeightRequest = Device.OnPlatform(55, 55, 75),
            VerticalOptions = LayoutOptions.Center
        };
        favoriteImage.SetBinding(Image.SourceProperty, "Image");
        gridDefaultPage.SetGridLocation(favoriteImage, 0, 0, 0, 2);

        Label siteNameLabel = new Label
        {
            VerticalOptions = LayoutOptions.CenterAndExpand,
            HorizontalOptions = LayoutOptions.StartAndExpand,
            FontSize = 13
        };
        siteNameLabel.SetBinding(Label.TextProperty, "Title");
        gridDefaultPage.SetGridLocation(siteNameLabel, 0, 1, 0, 0);

        Label siteDescriptionLabel = new Label
        {
            VerticalOptions = LayoutOptions.CenterAndExpand,
            HorizontalOptions = LayoutOptions.StartAndExpand,
            FontSize = 11
        };
        siteDescriptionLabel.SetBinding(Label.TextProperty, "Description");
        gridDefaultPage.SetGridLocation(siteDescriptionLabel, 1, 1, 0, 0);

        MenuItem moreAction = new MenuItem {Text = "Update"};
        moreAction.SetBinding(MenuItem.CommandParameterProperty, new Binding("."));
        moreAction.Clicked += async (sender, e) =>
        {

        };
        MenuItem deleteAction = new MenuItem {Text = "Delete", IsDestructive = true}; // red background
        deleteAction.SetBinding(MenuItem.CommandParameterProperty, new Binding("."));
        deleteAction.Clicked += async (sender, e) =>
        {
            MenuItem mi = ((MenuItem) sender);
            SpUrlsPerUser spUrlsPerUser = mi.CommandParameter as SpUrlsPerUser;
            if (spUrlsPerUser == null || String.IsNullOrEmpty(spUrlsPerUser.ObjectId))
                return;

            RaiseDeleteSpUrlEvent(spUrlsPerUser.ObjectId);
        };

        ContextActions.Add(moreAction);
        ContextActions.Add(deleteAction);
        View = gridDefaultPage;
    }

    private void RaiseDeleteSpUrlEvent(string objectId)
    {
        OnDeleteSpUrlEvent(new DeleteSpUrlEventArgs(objectId));
    }

    private void OnDeleteSpUrlEvent(DeleteSpUrlEventArgs ea)
    {
        if (DeleteSpUrlRaised != null)
            DeleteSpUrlRaised(this, ea);
    }
    public event EventHandler<DeleteSpUrlEventArgs> DeleteSpUrlRaised;
}

As you can see I need to raise an event handler when it comes to delete an entry within the ListView RaiseDeleteSpUrlEvent(spUrlsPerUser.ObjectId);
When the code hits if (DeleteSpUrlRaised != null) it always says it is null and does not raise the event. Could you please tell me what I am doing wrong?

Here is the code where I call this class

    ListView sitesListView = new ListView {ItemsSource = listItems};

        DataTemplate dataTemplate = new DataTemplate(() => new DefaultPageListViewTemplate());
        DefaultPageListViewTemplate defaultPageListViewTemplate =
            dataTemplate.CreateContent() as DefaultPageListViewTemplate;
        if (defaultPageListViewTemplate != null)
        {
            defaultPageListViewTemplate.DeleteSpUrlRaised +=
                (sender, args) => //some code here;
        }

        sitesListView.ItemTemplate = dataTemplate;

Thank you for your help