how to bind the value of property of treeview's column in wpf

Here is a piece of my XAML:

    <Grid>
                <dxg:TreeListControl x:Name="HierarchyTreeControl" ItemsSource="{Binding MenuItems}" EnableSmartColumnsGeneration="False" HorizontalAlignment="Left" Margin="0" VerticalAlignment="Top" SelectionMode="Row" AutoGenerateColumns="None">
                    <dx:TreeListColumn FieldName="Name" Header="Title" Width="50" />
                    <dx:TreeListColumn FieldName="URL" Header="Link" Width="150" />             
                    <dx:TreeListColumn Binding="{Binding HasChildren}" Header="Has any children" Width="20" BestFitArea="Header" AllowResizing="False" ShowInColumnChooser="True" Visible="True" >
                        <dx:TreeListColumn.EditSettings>
                            <dxe:CheckEditSettings />
                        </dx:TreeListColumn.EditSettings>
                    </dx:TreeListColumn>
                    <dx:TreeListColumn Binding="{Binding IsChecked}" Header="Удалить" ReadOnly="False" AllowEditing="{Binding Path=HasChildren, Converter={StaticResource BoolToFalseConverter}, UpdateSourceTrigger=PropertyChanged}" Width="20" BestFitArea="Header" AllowResizing="False" ShowInColumnChooser="True" Visible="True" >
                        <dx:TreeListColumn.EditSettings>
                            <dxe:CheckEditSettings />
                        </dx:TreeListColumn.EditSettings>
                    </dx:TreeListColumn>
                    <dxg:TreeListControl.View>
                        <dxg:TreeListView AllowPerPixelScrolling="True" ShowTotalSummary="False" KeyFieldName="ID" ParentFieldName="ParentID"  TreeDerivationMode="Selfreference" AllowEditing="False" AutoExpandAllNodes="False" FetchSublevelChildrenOnExpand="False" AllowColumnMoving="False" AutoWidth="True" ShowNodeImages="False" />
                    </dxg:TreeListControl.View>
                </dxg:TreeListControl>
            </Grid>

where the source {MenuItems} is ObservableCollection<MenuItem>

I would like to allow to check the checkbox in the last column only if property MenuItem.HasChildren = false

I am trying to do with this code:

AllowEditing="{Binding Path=HasChildren, Converter={StaticResource BoolToFalseConverter}, UpdateSourceTrigger=PropertyChanged}"

But this is not working and I see that converter BoolToFalseConverter calls only once, for the first row

How to complete the task?

Update: Here is the class of MenuItem

public class MenuItem : INotifyPropertyChanged
    {
        private int _id;
        public int ID
        {
            get {return _id;}
            set
            {
                if (_id == value)
                    return;
                _id = value;
                OnPropertyChanged("ID");
            }
        }

        private string _name;
        public string Name
        {
            get{return _name;}
            set
            {
                if (_name == value)
                    return;
                _name = value;
                OnPropertyChanged("Name");
            }
        }

        private string _url;
        public string URL
        {
            get
            {
                return _url;
            }
            set
            {
                if (_url == value)
                    return;
                _url = value;
                OnPropertyChanged("URL");
            }
        }

        private int _target;
        public int Target
        {
            get{return _target;}
            set
            {
                if (_target == value)
                    return;
                _target = value;
                OnPropertyChanged("Target");
            }
        }
        private int? _parentID;
        public int? ParentID
        {
            get{return _parentID;}
            set
            {
                if ((_parentID == null && value == null) || _parentID == value)
                    return;
                _parentID = value;
                OnPropertyChanged("ParentID");
            }
        }

        public bool HasChildren { get; set; }

        private bool _isChecked;
        public bool IsChecked
        {
            get{return _isChecked;}
            set
            {
                if (_isChecked == value)
                    return;
                _isChecked = value;
                OnPropertyChanged("IsChecked");
            }
        }

        protected void OnPropertyChanged(string propertyName)
        {
            if (PropertyChanged != null)
                PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
        }

        public event PropertyChangedEventHandler PropertyChanged;
    }