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

        radGridView1 = new RadGridView();
        radGridView1.Parent = this;
        radGridView1.Dock = DockStyle.Fill;

        NwindDataSetTableAdapters.EmployeesTableAdapter employeesTableAdapter = new EmployeesTableAdapter();
        employeesTableAdapter.Fill(this.nwindDataSet.Employees);

        BindingSource bs = new BindingSource();
        bs.DataMember = "Employees";
        bs.DataSource = this.nwindDataSet;
        radGridView1.DataSource = bs;

        LoadDetailsTable();

        radGridView1.ChildViewExpanded += radGridView1_ChildViewExpanded;
    }

    void radGridView1_ChildViewExpanded(object sender, ChildViewExpandedEventArgs e)
    {
        e.ChildRow.ChildViewInfos[0].ChildRows[0].Height = 250;
    }

    void LoadDetailsTable()
    {
        DataTable table = new DataTable("Details");
        table.Columns.Add("EmployeeID", typeof(int));
        table.Columns.Add("Photo", typeof(byte[]));
        table.Columns.Add("FirstName", typeof(string));
        table.Columns.Add("LastName", typeof(string));
        table.Columns.Add("Title", typeof(string));
        table.Columns.Add("Address", typeof(string));
        table.Columns.Add("City", typeof(string));
        table.Columns.Add("BirthDate", typeof(DateTime));
        table.Columns.Add("Country", typeof(string));
        foreach (DataRow row in this.nwindDataSet.Employees.Rows)
        {
            table.Rows.Add(row["EmployeeID"], row["Photo"], row["FirstName"],
                row["LastName"], row["Title"], row["Address"], row["City"], row["BirthDate"], row["Country"]);
        }

        GridViewTemplate template = new GridViewTemplate();
        template.Caption = "Details";
        template.DataSource = table;
        template.AllowRowResize = false;
        template.ShowColumnHeaders = false;
        template.Columns["Photo"].Width = 125;
        template.Columns["City"].Width = 70;
        template.Columns["Country"].Width = 70;
        template.Columns["FirstName"].DisableHTMLRendering = false;
        template.Columns["Title"].DisableHTMLRendering = false;
        template.Columns["BirthDate"].DisableHTMLRendering = false;
        template.Columns["Address"].Width = 200;
        template.Columns["Address"].DisableHTMLRendering = false;
        this.radGridView1.Templates.Insert(0, template);

        GridViewRelation relation = new GridViewRelation(this.radGridView1.MasterTemplate);
        relation.ChildTemplate = template;
        relation.ParentColumnNames.Add("EmployeeID");
        relation.ChildColumnNames.Add("EmployeeID");
        this.radGridView1.Relations.Add(relation);

        HtmlViewDefinition viewDef = new HtmlViewDefinition();
        viewDef.RowTemplate.Rows.Add(new RowDefinition());
        viewDef.RowTemplate.Rows.Add(new RowDefinition());
        viewDef.RowTemplate.Rows.Add(new RowDefinition());
        viewDef.RowTemplate.Rows[0].Cells.Add(new CellDefinition("Photo", 0, 1, 3));
        viewDef.RowTemplate.Rows[0].Cells.Add(new CellDefinition("FirstName", 0, 1, 1));
        viewDef.RowTemplate.Rows[0].Cells.Add(new CellDefinition("BirthDate", 0, 2, 1));
        viewDef.RowTemplate.Rows[1].Cells.Add(new CellDefinition("Title", 0, 3, 1));
        viewDef.RowTemplate.Rows[2].Cells.Add(new CellDefinition("Address", 0, 1, 1));
        viewDef.RowTemplate.Rows[2].Cells.Add(new CellDefinition("City", 0, 1, 1));
        viewDef.RowTemplate.Rows[2].Cells.Add(new CellDefinition("Country", 0, 1, 1));
        template.ViewDefinition = viewDef;
    }