DataGrid Master Detail Hierarchy

Radzen.Blazor Components
1

I would like to ask a question regarding DataGrid Master Detail Hierarchy.

Assuming I have a model like below:

Class A 
{
   List<B> {get; set;}
   string abv {get; set;}
}

Class B 
{
List<C> {get; set;}
}

Class C
{
string abc {get; set;}
}

Now, I can show detail hierarchy grid like below and it works:

<RadzenDataGrid 
              Data="@AListModel"
              TItem="A">
    <Template Context="BModel">
        <RadzenDataGrid 
                        Data="@B.C"
                        TItem="C">
            <Columns>
                <RadzenDataGridColumn TItem="C"
                                      Property="abc"
                                      Title="Test" >
                </RadzenDataGridColumn>
            </Columns>
        </RadzenDataGrid>
    </Template>
    <Columns>
        <RadzenDataGridColumn TItem="A" Property="abv " Title="Test" Width="80px" />
    </Columns>
</RadzenDataGrid>

Now this will show A with nested C inside. How can I reverse this same grid ? By showing all A's (parent) inside of C's (child) using the same model ? So I want to C's to be main row and then A's inside expandable.

Reverse order of Hierarchy

2

Not sure what that means however to show parent of a child with such model it’s not possible since you don’t have reference to the parent in your child objects. You can check how EF implements relationships like one-to-many - every parent have collection of children and every child have navigation parent property.