I have a view model class in a folder called ViewModel. The file is called PgViewMode.cs and looks like this:

using CommunityToolkit.Mvvm.ComponentModel;
using LockAndKeyMaui.Models;
using CommunityToolkit.Mvvm.Input;
using System.Collections.ObjectModel;
using SQLite;
using System.ComponentModel.DataAnnotations;
using CommunityToolkit.Maui.Storage;
using Mopups.Services;

namespace LockAndKeyMaui.ViewModel
{
    public partial class PgViewModel : ObservableValidator
    {
        public ObservableCollection<Groups> Grps { get; set; } = new ObservableCollection<Groups>();

        public PgViewModel()
        {
            Grps = new ObservableCollection<Groups>();
        }
     }
}

In one of my view files, I have the XAML looking like this:

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:sf="clr-namespace:Syncfusion.Maui.DataGrid;assembly=Syncfusion.Maui.DataGrid"
             xmlns:viewmodel="clr-namespace:LockAndKeyMaui.ViewModel"
             x:DataType="viewmodel:PgViewModel"
             x:Class="LockAndKeyMaui.View.PasswdInfo"
             BackgroundColor="DarkGreen">

And in the code-behind of this view file the constructor looks like this:

    public PasswdInfo()
    {
          laks = new LakFuncs();
          InitializeComponent();
          BindingContext = new PgViewModel();
    }

Now at one point in the code-behind of the view, I have:

            Grps.Clear();
            foreach (var grp in grps)
            {
                Grps.Add(new Groups() { GrpName = grp.GrpName });
            }

            grplist.ItemsSource = Grps;
            grplist.IsVisible = (Grps.Count > 0);

And this is where I get the errors. Grps is the definition of the ObservableCollection in the view model file. I realize it is a different file name, but shouldn’t it be recognized in some way?