radgridview hierarchy problem

[Fier]

Hi
I ask for help, there is a small problem.

There are two tables: the nomenclature and files.

Nomenclature hierarchy built in RadTreeView.
List of files in RadGridView
When you select a list of files filled in gridview
Doing so:

protected override void OnLoad(EventArgs e)
        {
            base.OnLoad(e);

            this.nomenclatureTableAdapter.Fill(this.dataSet.nomenclature);
            this.filesTableAdapter.Fill(this.dataSet.files);

            radGridView1.DataSource = this.index3fkBindingSource;

            this.radGridView1.Relations.AddSelfReference(radGridView1.MasterTemplate, "ID", "FID");
        }
The first time he correctly selects and builds a hierarchy.
But when another node, it populates the file list in their previous range, and even without the hierarchy.
SubFiles is not visible and not the list of files.