Public Overrides Function ResolveRootDirectoryAsTree(ByVal path As String) As DirectoryItem
        Dim directory As DirectoryItem = dataServer.GetDirectoryItem(path, True)

        If directory Is Nothing Then
            Return Nothing
        End If
        directory.Permissions = GetPermissions(path)

        If directory.Directories IsNot Nothing Then
            For Each dir As DirectoryItem In directory.Directories
                dir.Permissions = GetPermissions(path)
            Next
        End If

        Return directory
    End Function

Public Function GetDirectoryItem(ByVal path As String, ByVal includeSubfolders As Boolean) As DirectoryItem
        Dim item As DataRow = Me.GetItemRowFromPath(path)

        Return If(item IsNot Nothing, Me.CreateDirectoryItem(item, includeSubfolders), Nothing)
    End Function

    Private Function CreateDirectoryItem(ByVal item As DataRow, ByVal includeSubfolders As Boolean) As DirectoryItem
        'correct permissions should be applied from the content provider
        Dim directory As New DirectoryItem(item("Description").ToString(), Me.GetLoaction(item), Me.GetFullPath(item), [String].Empty, PathPermissions.Read, Nothing,
         Nothing)
        directory.Attributes.Add("CategoryID", item("CategoryID"))

        If includeSubfolders Then
            Dim subDirItems As DataRow() = GetChildDirectories(item)
            Dim subDirs As New List(Of DirectoryItem)()

            For Each subDir As DataRow In subDirItems
                subDirs.Add(CreateDirectoryItem(subDir, False))
            Next

            directory.Directories = subDirs.ToArray()
        Else
            directory.Directories = (New List(Of DirectoryItem)).ToArray()
        End If

        Return directory
    End Function

        
protected void AppointmentList_RowDrop(object sender, GridDragDropEventArgs e)
        {
            GridDataItem dataItem = e.DraggedItems[0];

            string id = (string)dataItem.GetDataKeyValue("ID");
            string customer = (string)dataItem.GetDataKeyValue("Customer");
            string title = (string)dataItem.GetDataKeyValue("Title");
            string jobtype = (string)dataItem.GetDataKeyValue("JobType");
            string targetSlotIndex = TargetSlotHiddenField.Value;

            if (targetSlotIndex != string.Empty)
            {
                HandleSchedulerDrop(id, title, customer, jobtype, targetSlotIndex);
                TargetSlotHiddenField.Value = string.Empty;
            }

            ISchedulerTimeSlot slot = AdeoJobScheduler.GetTimeSlotFromIndex(targetSlotIndex);
            AdeoJobScheduler.ShowAdvancedInsertForm(slot.Start);
// Pass extra details for JobType, Subject here

        }

        protected void AdeoJobScheduler_FormCreated(object sender, SchedulerFormCreatedEventArgs e)
        {
            RadScheduler scheduler = (RadScheduler)sender;

            if (e.Container.Mode == SchedulerFormMode.AdvancedInsert || e.Container.Mode == SchedulerFormMode.AdvancedEdit)
            {

                RadDateTimePicker startInput = (RadDateTimePicker)e.Container.FindControl("StartInput");
                startInput.SelectedDate = AdeoJobScheduler.DisplayToUtc(e.Appointment.Start);

                RadDateTimePicker endInput = (RadDateTimePicker)e.Container.FindControl("EndInput");
                endInput.SelectedDate = AdeoJobScheduler.DisplayToUtc(e.Appointment.End);

                RadMultiSelect fitterlist = (RadMultiSelect)e.Container.FindControl("SelectFitters");

                foreach (Fitter.Result fitter in GetFitters().GetAwaiter().GetResult().results)
                {
                    MultiSelectItem newFitter = new MultiSelectItem() { Text = $"{fitter.properties.firstname} {fitter.properties.lastname}", Value = fitter.properties.id };
                    fitterlist.Items.Add(newFitter);
                }

            }
        }