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using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace Tango.FSE.UsersAndRoles.Models
{
public class RolesCollection : Collection<RoleModel>
{
private bool _invalidating;
protected override void InsertItem(int index, RoleModel item)
{
base.InsertItem(index, item);
item.PropertyChanged += Item_PropertyChanged;
Invalidate();
}
private void Item_PropertyChanged(object sender, System.ComponentModel.PropertyChangedEventArgs e)
{
if (e.PropertyName == nameof(RoleModel.IsSelected))
{
Invalidate();
}
}
private void Invalidate()
{
if (!_invalidating)
{
_invalidating = true;
foreach (var role in Items)
{
foreach (var dependencyRole in role.Dependencies)
{
var dependencyRoleModel = Items.SingleOrDefault(x => x.Role.Code == dependencyRole.ToInt32());
if (dependencyRoleModel != null)
{
if (role.IsSelected)
{
dependencyRoleModel.IsSelected = true;
dependencyRoleModel.IsEnabled = false;
}
else
{
dependencyRoleModel.IsEnabled = !Items.Any(x => x.IsSelected && x.Dependencies.Contains(dependencyRole));
}
}
}
}
_invalidating = false;
}
}
}
}
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