I have 2 problems:

Problem 1:

I need to develop a tree view like structure in my application with MVVM approch.
The object(collecion of my class) which I am binding will be of type parent child relationship data
where parent and child classes are same.(Self refrencing data)

For Ex: Class UserAccess
{
 public string UserName { get;set; }
 public bool Read { get;set; }
 public bool Write { get;set; }
 public bool Switch { get;set; }
 List<UserAccess> SubUsersAccess {get; set;}
 
}

Now I have to display the data in hierarchical structure with the checkboxes. The tree view will be a multicolumn treeview.

The WPF code I am using is like this:

<Border BorderThickness="10" BorderBrush="Azure" CornerRadius="10" Width="500">
            <TreeView Background="#D6E5F9" ItemsSource="{Binding AggregationUnit, UpdateSourceTrigger=PropertyChanged}"

Width="400" >
                <TreeView.Resources>
                    <HierarchicalDataTemplate DataType="{x:Type utils:GroupBookEntitlement_AccountTree}"

ItemsSource="{Binding SubAccountTrees, UpdateSourceTrigger=PropertyChanged}">
                        <StackPanel Orientation="Horizontal" >
                            <Grid >
                                <Grid.ColumnDefinitions>
                                    <ColumnDefinition />
                                </Grid.ColumnDefinitions>
                                <TextBlock Grid.Column="0" Text="{Binding NODE}" HorizontalAlignment="Left" />
                            </Grid>
                            <CheckBox IsChecked="{Binding ReadValue, Mode = TwoWay}" HorizontalAlignment="Center"

Width="100" Margin="10,0,20,0"/>
                            <CheckBox IsChecked="{Binding WriteValue, Mode = TwoWay}" HorizontalAlignment="Center" 

Width="100" Margin="0,0,20,0"/>
                            <CheckBox IsChecked="{Binding SwitchValue, Mode = TwoWay}" HorizontalAlignment="Center" 

Width="100" Margin="0,0,20,0" />

                        </StackPanel>
                    </HierarchicalDataTemplate>
                </TreeView.Resources>
            </TreeView>
</Border>

but he problem is allignment of the columns are not matching. Attach snapshot for refrence.

Expected result: All the checkboxes are in sequence and properly alligned.

Problem 2:
My second requirement is if I check any parent checkbox, the child checkboxes needs to be automatically chekced and if I uncheck the parent checkbox, child checkboxes are unchecked.

Please let me know how can i achieve this behavior.