IsReadOnly in Hierarchical Grid

[Stuart Cotts]

Below is a shortened (some columns/styling removed) Grid I am workingon, I am trying to have an external source set IsReadOnly on the Parent and hierarchical grid.

The binding sets "cueSheetGrid" to IsReadOnly (InEditMode is a propery from DataContext) but the child grid (EventView) remains editable, I have not found a way to bind the child to the parent grid and the ItemSource is different for the two grids.

Any ideas?

 

<tGrid:RadGridView
    IsReadOnly="{Binding InEditMode}"
    x:Name="cueSheetGrid"
    HorizontalAlignment="Stretch"
    RowDetailsVisibilityMode="Collapsed"
    AlternationCount="0"
    RowIndicatorVisibility="Collapsed"
    DragElementAction="None"
    AreRowDetailsFrozen="False"
    CanUserFreezeColumns="True" >

    <tGrid:RadGridView.ChildTableDefinitions>
        <tGrid:GridViewTableDefinition>
            <tGrid:GridViewTableDefinition.Relation>
                <tData:PropertyRelation
                    ParentPropertyName="CueEvents"/>
            </tGrid:GridViewTableDefinition.Relation>
        </tGrid:GridViewTableDefinition>
    </tGrid:RadGridView.ChildTableDefinitions>

    <tGrid:RadGridView.Columns>
        <tGrid:GridViewDataColumn
            DataMemberBinding="{Binding CueNum}"
            Header="Cue Number  "/>
        <tGrid:GridViewDataColumn
            DataMemberBinding="{Binding Label}"
            Header="Label  "/>
    </tGrid:RadGridView.Columns>


    <tGrid:RadGridView.HierarchyChildTemplate>
        <DataTemplate>
            <tGrid:RadGridView
                x:Name="EventView"
                ItemsSource="{Binding CueEvents}"
                HeaderRowStyle="{DynamicResource MyHeaderRowStyle}"
                Style="{DynamicResource GridStyleDefault}"
                RowStyle="{DynamicResource EventRowStyle}"
                AlternateRowStyle="{DynamicResource EventAltRowStyle}"
                AlternationCount="2" >

                <tGrid:RadGridView.Columns>
                    <tGrid:GridViewDataColumn
                        IsReadOnly="True"
                        DataMemberBinding="{Binding Machine.Name}"
                        Header="Machine  "/>
                    <tGrid:GridViewDataColumn
                        DataMemberBinding="{Binding Position}"
                        Header="Position  "/>
                    <tGrid:GridViewDataColumn
                        DataMemberBinding="{Binding Position}"
                        Header="Position  "/>
                </tGrid:RadGridView.Columns>

            </tGrid:RadGridView>
        </DataTemplate>
    </tGrid:RadGridView.HierarchyChildTemplate>
</tGrid:RadGridView>

[Stuart Cotts]

I got it, my first attempts to use RelativeSource failed but I finally got it.