Hello Jonh,
You can use the DragDropService to achieve this functionality. Here is a example with ToolWindows. The second ToolWindow supports drag & drop operations from the content area of window:
using System;
using System.Drawing;
using System.Windows.Forms;
using Telerik.WinControls.UI.Docking;
namespace Lab.Dock
{
public partial class DockNotFrameFloatingForm : Form
{
private RadDock radDock = new RadDock();
public DockNotFrameFloatingForm()
{
InitializeComponent();
radDock.Dock = DockStyle.Fill;
radDock.Parent = this;
radDock.BringToFront();
radDock.FloatingWindowCreated += radDock_FloatingWindowCreated;
}
void radDock_FloatingWindowCreated(object sender, FloatingWindowEventArgs e)
{
e.Window.FormBorderStyle = System.Windows.Forms.FormBorderStyle.None;
}
protected override void OnLoad(EventArgs e)
{
base.OnLoad(e);
ToolWindow tool = new ToolWindow("Tool1");
radDock.DockWindow(tool, DockPosition.Left);
tool = new ToolWindow("Tool2");
tool.MouseMove += tool_MouseMove;
tool.MouseDown += tool_MouseDown;
tool.MouseUp += tool_MouseUp;
radDock.DockWindow(tool, DockPosition.Left);
tool = new ToolWindow("Tool3");
radDock.DockWindow(tool, DockPosition.Left);
}
void tool_MouseUp(object sender, MouseEventArgs e)
{
beginDrag = false;
radDock.GetService<DragDropService>().Stop(true);
}
private Point captionDragStart;
private bool beginDrag = false;
void tool_MouseDown(object sender, MouseEventArgs e)
{
captionDragStart = Control.MousePosition;
beginDrag = true;
}
void tool_MouseMove(object sender, MouseEventArgs e)
{
if (e.Button == System.Windows.Forms.MouseButtons.Left && ((DockWindow)sender).DockState == DockState.Floating && beginDrag && DockHelper.ShouldBeginDrag(Control.MousePosition, this.captionDragStart))
{
radDock.GetService<DragDropService>().Start(sender, Control.MousePosition);
}
}
}
}
I hope this helps.
All the best,
Julian Benkov
the Telerik team