Command doesn't trigger

Question

I have a Syncfusion popup and a collection View inside Everything works as expected, the image, name, price, description, but the button doesn't want to open the picker VM

namespace Scan2Cart.ViewModels;

public partial class HomePageViewModel(IPageService pageService, IDataProvider dataProvider) : BaseViewModel(pageService) {

    private bool _isPopupOpening;

    [ObservableProperty]
    public partial bool IsSelectedQtyPopopOpened { get; set; }

 

    [RelayCommand]
    private async Task BarcodesDetected(IEnumerable<BarcodeResult> results) {

        if (_isPopupOpening) return; // prevent multiple triggers

        var val = results.FirstOrDefault()?.Value;
        if (string.IsNullOrEmpty(val))
            return;
        _isPopupOpening = true;

        Product = await dataProvider.GetProductByIdAsync(val);

        await Task.Delay(100);

        IsProductInfoVisible = true;

        IsPopUpDetectedOpen = true;

        _isPopupOpening = false;

    }

    [RelayCommand]
    void Yes() {

        // Add product if not already in the list
        if (!Products.Any(x => x.Id == Product.Id))
            Products.Add(Product);

        // Close popup and reset flags
        IsPopUpDetectedOpen = false;
        ShouldDetect = true;
    }

    [RelayCommand]
    void No() {

        IsPopUpDetectedOpen = false;
        ShouldDetect = true;
    }

    [RelayCommand]
    void Open() {

        ShouldDetect = false;
    }

    [RelayCommand]
    void Close() {

        IsProductInfoVisible = false;
        IsPopUpDetectedOpen = false;
        ShouldDetect = true;
    }
    [RelayCommand]
    async Task ShowCart() {

        ShouldDetect = false;
        IsCartPopopOpen = true;
    }

    [RelayCommand]
    void OenQuantityPopUp() {

        IsSelectedQtyPopopOpened = true;
    }
}

<?xml version="1.0" encoding="utf-8" ?>
<syncfusion:SfPopup
    x:Class="Scan2Cart.Views.PopUps.CartPage"
    xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
    xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
    xmlns:controls="clr-namespace:Scan2Cart.Controls"
    xmlns:model="clr-namespace:Scan2Cart.Models"
    xmlns:picker="clr-namespace:Syncfusion.Maui.Picker;assembly=Syncfusion.Maui.Picker"
    xmlns:syncfusion="clr-namespace:Syncfusion.Maui.Popup;assembly=Syncfusion.Maui.Popup"
    xmlns:vm="clr-namespace:Scan2Cart.ViewModels"
    Padding="20"
    x:DataType="vm:HomePageViewModel"
    AnimationMode="Zoom"
    IsFullScreen="True"
    ShowCloseButton="True"
    ShowHeader="False"
    StaysOpen="True">

    <syncfusion:SfPopup.ContentTemplate>
        <DataTemplate>
            <VerticalStackLayout Padding="10" Spacing="5">
                <Label FontSize="Large" Text="Your cart" />
                <CollectionView ItemsSource="{x:Binding Products}">
                    <CollectionView.ItemTemplate>
                        <DataTemplate x:DataType="model:Product">
                            <Border>
                                <Grid
                                    Padding="2"
                                    ColumnDefinitions="60,*,70"
                                    ColumnSpacing="5">
                                    <Image
                                        HeightRequest="60"
                                        HorizontalOptions="Start"
                                        Source="{x:Binding ImageUrl}"
                                        WidthRequest="60" />
                                    <VerticalStackLayout Grid.Column="1">
                                        <Label
                                            FontAttributes="Bold"
                                            FontSize="10"
                                            Text="{x:Binding Name}" />
                                        <Label FontSize="10" Text="{x:Binding Description}" />
                                        <Label
                                            Margin="0,10,0,0"
                                            FontAttributes="Bold"
                                            Text="{x:Binding Price}" />
                                    </VerticalStackLayout>
                                    <Button
                                        Grid.Column="2"
                                        BackgroundColor="Transparent"
                                        Command="{Binding Source={x:Reference CartPage}, Path=BindingContext.OpenQuantityPopUpCommand}"
                                        FontAttributes="Bold"
                                        FontSize="14"
                                        Text="{x:Binding SelectedQuantity}"
                                        TextColor="{x:AppThemeBinding Dark={x:StaticResource White},
                                                                      Light={x:StaticResource Black}}" />
                                </Grid>
                                <Border.StrokeShape>
                                    <RoundRectangle CornerRadius="8" />
                                </Border.StrokeShape>
                            </Border>
                        </DataTemplate>
                    </CollectionView.ItemTemplate>
                </CollectionView>
                <picker:SfPicker
                    IsOpen="{x:Binding IsSelectedQtyPopopOpened}"
                    Mode="Dialog"
                    TextDisplayMode="FadeAndShrink">
                    <picker:SfPicker.Columns>
                        <picker:PickerColumn
                            HeaderText="Select quantity"
                            ItemsSource="{x:Binding Product.QuantityRange}"
                            SelectedItem="{x:Binding Product.SelectedQuantity}" />
                    </picker:SfPicker.Columns>
                </picker:SfPicker>
            </VerticalStackLayout>
        </DataTemplate>
    </syncfusion:SfPopup.ContentTemplate>

    <syncfusion:SfPopup.PopupStyle>
        <syncfusion:PopupStyle
            CornerRadius="0"
            HasShadow="True"
            HeaderBackground="{x:AppThemeBinding Dark='#C8000000',
                                                 Light='#00000'}"
            MessageBackground="{x:AppThemeBinding Dark='#C8000000',
                                                  Light='#C6626161'}" />
    </syncfusion:SfPopup.PopupStyle>
</syncfusion:SfPopup>