WPF

<DataGrid
           ItemsSource="{Binding AllInspections}"
           AutoGenerateColumns="False"
           Grid.Row="4"
           Margin="5,0,0,0"
           SelectedItem="{Binding SelectedInspection}">
           <DataGrid.RowDetailsTemplate>
               <DataTemplate>
                   <TextBox
                       Text="{Binding Notes, Mode=TwoWay}" />
               </DataTemplate>
           </DataGrid.RowDetailsTemplate>

Text="{Binding RelativeSource={RelativeSource FindAncestor, AncestorType={x:Type DataGrid}},Path=SelectedItem.Notes}" />

    public enum tabType
{
    tabbedTextBlock = 1,
    tabbedLinkedBlock = 2
}

public class person
{
    private string firstName;
    private string lastName;
    private int age;
    private tabType type;


    public person()
    {
        // Insert code required on object creation below this point.
    }

    public person(string firstName, string lastName, int age, tabType type)
    {
        this.FirstName = firstName;
        this.LastName = lastName;
        this.Age = age;
        this.tabType = type;
    }

    public string FirstName
    {
        get;
        set;
    }

    public string LastName
    {
        get;
        set;
    }

    public int Age
    {
        get;
        set;
    }

            public tabType tabType
            {
                    get;
                    set;
    }

    public class sampledata : ObservableCollection<person>
{
    public sampledata() :base()
    {
        Add(new person("foo", "fofoo", 23, tabType.tabbedLinkedBlock));
        Add(new person("apple", "fruit", 21, tabType.tabbedTextBlock));
        Add(new person("pineapple", "fruit", 17, tabType.tabbedLinkedBlock));
        Add(new person("banan", "fruit", 47, tabType.tabbedLinkedBlock));
        Add(new person("kiwi", "fruit", 34, tabType.tabbedTextBlock));
    }
}