Clicking on a cell cause the page to crash Completed

blazor.server.js:1 [2022-12-31T14:23:08.331Z] Error: System.ArgumentException: Object of type 'System.Collections.Generic.List`1[System.Dynamic.ExpandoObject]' cannot be converted to type 'System.Collections.Generic.List`1[DNDHEHE.Pages.Index+BusinessObject]'.

   at System.RuntimeType.CheckValue(Object& value, ParameterCopyBackAction& copyBack, Binder binder, CultureInfo culture, BindingFlags invokeAttr)

   at System.Reflection.MethodBase.CheckArguments(Span`1 copyOfParameters, IntPtr* byrefParameters, Span`1 shouldCopyBack, ReadOnlySpan`1 parameters, RuntimeType[] sigTypes, Binder binder, CultureInfo culture, BindingFlags invokeAttr)

   at System.Reflection.RuntimeMethodInfo.InvokeOneParameter(Object obj, BindingFlags invokeAttr, Binder binder, Object parameter, CultureInfo culture)

   at System.Reflection.RuntimePropertyInfo.SetValue(Object obj, Object value, BindingFlags invokeAttr, Binder binder, Object[] index, CultureInfo culture)

   at System.Reflection.PropertyInfo.SetValue(Object obj, Object value)

   at Syncfusion.Blazor.TreeGrid.Internal.TreeGridutils`1.ConvertToTreeGridArgs(Object gridArgs, Object treeGridArgs, SfTreeGrid`1 parent)

   at Syncfusion.Blazor.TreeGrid.Internal.GridRenderer`1.RowSelectingHandler(RowSelectingEventArgs`1 gridArgs)

   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)

   at Syncfusion.Blazor.Grids.Internal.Selection`1.SelectByRow(Row`1 rowToSelect, MouseAndKeyArgs evt)

   at Syncfusion.Blazor.Grids.Internal.Selection`1.ValidateRowSelectionClick(Row`1 row, MouseAndKeyArgs e)

   at Syncfusion.Blazor.Grids.Internal.Selection`1.RowSelectionClickHandler(MouseAndKeyArgs e, ValueTuple`3 target)

   at Syncfusion.Blazor.Grids.Internal.Selection`1.ClickHandler(MouseEventArgs e, ValueTuple`3 target)

   at Syncfusion.Blazor.Grids.Internal.GridCellBase`1.CellClickHandler(MouseEventArgs e, Boolean IsCheckBox)

   at Syncfusion.Blazor.Grids.Internal.GridCell`1.b__0_6(MouseEventArgs e)

   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)

   at Microsoft.AspNetCore.Components.RenderTree.Renderer.GetErrorHandledTask(Task taskToHandle, ComponentState owningComponentState)

Here is the code for my page

@page "/"
@using Syncfusion.Blazor.Grids;
@using Syncfusion.Blazor.TreeGrid

@code
{
    public class BusinessObject
    {
        public int TaskId { get; set; }
        public string TaskName { get; set; }
        public int? ParentId { get; set; }
    }

    public List TreeData = new List();

    protected override void OnInitialized()
    {
        TreeData.Add(new BusinessObject() { TaskId = 1, TaskName = "Parent Task 1", ParentId = null });
        TreeData.Add(new BusinessObject() { TaskId = 2, TaskName = "Child task 1", ParentId = 1 });
        TreeData.Add(new BusinessObject() { TaskId = 3, TaskName = "Child Task 2", ParentId = 1, });
        TreeData.Add(new BusinessObject() { TaskId = 4, TaskName = "Parent Task 2", ParentId = null });
        TreeData.Add(new BusinessObject() { TaskId = 5, TaskName = "Child Task 5", ParentId = 4 });
        TreeData.Add(new BusinessObject() { TaskId = 6, TaskName = "Child Task 6", ParentId = 5 });
    }

    public async Task RowDroppedHandler(RowDroppedEventArgs args)
    {
        //you can get the dropped row data's here
        List Data = args.Data;
    }
}