AppShell.xaml.cs

using System.ComponentModel;
using CommunityToolkit.Maui.Views;
using MauiApp_AnyThingLM_RAG.ViewModels;

namespace MauiApp_AnyThingLM_RAG
{
    public partial class AppShell : Shell
    {
        private AppShellViewModel _appShellViewModel;
        public AppShell(AppShellViewModel appShellViewModel)
        {
            InitializeComponent();
            this._appShellViewModel = appShellViewModel;
            this.BindingContext = this._appShellViewModel;

            this._appShellViewModel.PropertyChanged += WorkspacesListViewModel_PropertyChanged;
        }
        private async void WorkspacesListViewModel_PropertyChanged(object? sender, PropertyChangedEventArgs e)
        {
            if(e.PropertyName == nameof(AppShellViewModel.IsExpanderItemsLoaded) && this._appShellViewModel.IsExpanderItemsLoaded)
            {
                this.stackLayoutWorkspaces.Clear();
                this.labelNotConnectedAnythingllm.IsVisible = false;
                if(this._appShellViewModel.ExpanderItems.Count > 0)
                {
                    this.labelNoThereAreWorkspaces.IsVisible = false;
                    this.stackLayoutWorkspaces.IsVisible = true;
                    foreach (Expander expander in this._appShellViewModel.ExpanderItems)
                    {
                        this.stackLayoutWorkspaces.Add(expander);
                    }
                    await Task.Delay(1000);
                }
                else
                {
                    this.labelNoThereAreWorkspaces.IsVisible = true;
                }
                this.CreateWorkspaceButton.IsEnabled = true;
                this._appShellViewModel.IsExpanderItemsLoaded = false;
            }
        }
    }
}