DataGridView复选框列绑定无法在WPF中编辑

Question

我有表名作为它包含的菜单（menuid，menuname，type，maker，checker）。 maker和checker数据类型位于数据库中。它只包含E和R的类型。

我正在使用visual studio 2012，LLBLgenPro，Moden UI

现在我绑定的是datagridview中的表数据，我的代码是

 _dtsource = FormAccessPermissionsClass.MenuList().DefaultView;                
            Dgrid.ItemsSource = _dtsource;

            var MakerColumn = new FirstFloor.ModernUI.Windows.Controls.DataGridCheckBoxColumn();

            Binding bind = new Binding("Maker");
            bind.Mode = BindingMode.OneWay;                
            MakerColumn.CellStyle = new Style(typeof(bool));
            MakerColumn.Binding = bind;
            MakerColumn.Header = "Maker";               

            Dgrid.Columns[3] = MakerColumn;

现在，我的问题是

 1. The checkbox are coming but i cannot able to edit (checked/unchecked) it.
 2. I want if type is E then checkbox is show otherwide hide it