BasePopup.cs

using Microsoft.Maui.Controls;
 
namespace NeuroAccessMaui.UI.Popups
{
    [ContentProperty(nameof(CustomContent))]
    public class BasePopup : BasicPopup
    {
        public static readonly BindableProperty CustomContentProperty = BindableProperty.Create(
            nameof(CustomContent),
            typeof(View),
            typeof(BasePopup),
            null,
            propertyChanged: OnCustomContentChanged);
 
        public View? CustomContent
        {
            get => (View?)this.GetValue(CustomContentProperty);
            set => this.SetValue(CustomContentProperty, value);
        }
 
        private static void OnCustomContentChanged(BindableObject bindable, object? oldValue, object? newValue)
        {
            if (bindable is BasePopup popup)
            {
                popup.CardContent = newValue as View;
            }
        }
    }
}