RadzenDataGrid - Expandable Rows don't work with Grouping

[blaze26]

I want to make certain rows expandable using RowRender and LoadChildData, without Grouping in the grid it works as intended. If I use Grouping in the Grid, it shows incorrect behaviour, the expanded row doesn't display, or it can't be collapsed and stays as a new row.

    <RadzenDataGrid @ref=grid AllowGrouping="true" 
            Data="@employees" Render="@OnRender"  TItem="Employee" 
            LoadChildData="@LoadChildData" RowRender="@RowRender"
            HideGroupedColumn="true" >

    void RowRender(RowRenderEventArgs<Employee> args) 
    { 
        args.Expandable = args.Data.EmployeeID == 1; 
    }

    void LoadChildData(DataGridLoadChildDataEventArgs<Employee> args)
    {
        args.Data = new List<Employee>() { 
             new Employee() { FirstName = "Example", Title = "Sales Representative"} 
        };
    }

[enchev]

@blaze26

I want to make certain rows expandable using RowRender and LoadChildData

This is usually used to represent self referencing hirachy - if you simply define Template for the DataGrid you will have expandable rows.