using DevExpress.XtraBars.Docking;
// ...
// Create a dock manager and initialize its Form property.
DockManager dockManager1 = new DockManager(this);
// Create and dock a panel to the top edge.
DockPanel panel1 = dockManager1.AddPanel(DockingStyle.Top);
panel1.Text = "Panel 1";

Imports DevExpress.XtraBars.Docking
' ...
' Create a dock manager and initialize its Form property.
Dim dockManager1 As DockManager = New DockManager(Me)
' Create and dock a panel to the top edge.
Dim panel1 As DockPanel = dockManager1.AddPanel(DockingStyle.Top)
panel1.Text = "Panel 1"

using DevExpress.XtraBars.Docking;
// ...
// Create a panel and dock it to the form's right edge.
DockPanel panel1 = dockManager1.AddPanel(DockingStyle.Right);
panel1.Text = "Panel 1";
// Add a new panel to panel1. This forms a split container that owns panel1 and panel2.
DockPanel panel2 = panel1.AddPanel();
panel2.Text = "Panel 2";
// Transform the split container into a tab container.
DockPanel container = panel1.ParentPanel;
container.Tabbed = true;

Imports DevExpress.XtraBars.Docking
' ...
' Create a panel and dock it to the form's right edge.
Dim panel1 As DockPanel = dockManager1.AddPanel(DockingStyle.Right)
panel1.Text = "Panel 1"
' Add a new panel to panel1. This forms a split container that owns panel1 and panel2.
Dim panel2 As DockPanel = panel1.AddPanel()
panel2.Text = "Panel 2"
' Transform the split container into a tab container.
Dim container As DockPanel = panel1.ParentPanel
container.Tabbed = True

// Create dock panels, panel1 and panel2 form a split container.
DockPanel panel1 = dockManager1.AddPanel(DockingStyle.Top);
panel1.Text = "Panel 1";
DockPanel panel2 = panel1.AddPanel();
panel2.Text = "Panel 2";

// Place a PropertyGrid control on panel1.
PropertyGrid pGrid = new PropertyGrid();
pGrid.SelectedObject = panel1;
pGrid.Dock = DockStyle.Fill;
panel1.ControlContainer.Controls.Add(pGrid);

// Place a ListBox control on panel2.
ListBox lBox = new ListBox();         
lBox.Items.AddRange(new string [] {"Item 1", "Item 2", "Item 3"});
lBox.Dock = DockStyle.Fill;
panel2.ControlContainer.Controls.Add(lBox);

' Create dock panels, panel1 and panel2 form a split container.
Dim panel1 As DockPanel = dockManager1.AddPanel(DockingStyle.Top)
panel1.Text = "Panel 1"
Dim panel2 As DockPanel = panel1.AddPanel()
panel2.Text = "Panel 2"

' Place a PropertyGrid control on panel1.
Dim pGrid As PropertyGrid = New PropertyGrid
pGrid.SelectedObject = panel1
pGrid.Dock = DockStyle.Fill
panel1.ControlContainer.Controls.Add(pGrid)

' Place a ListBox control on panel2.
Dim lBox As ListBox = New ListBox
lBox.Items.AddRange(New String() {"Item 1", "Item 2", "Item 3"})
lBox.Dock = DockStyle.Fill
panel2.ControlContainer.Controls.Add(lBox)

dockManager1.RemovePanel(dockManager1.ActivePanel);

dockManager1.RemovePanel(dockManager1.ActivePanel)