You can get a reference to a DockItem's container like this -

item.Content.ParentChanged += ContentParentChanged;

void ContentParentChanged(object sender, EventArgs e)
{
	var control = sender as Control;
	var parent = control.Parent as Control;
	if (parent != null)
	{
		var btn = new System.Windows.Forms.Button { Text = "+" };
		parent.Controls.Add(btn);
		btn.BringToFront();
		// how do we move this to titlebar?
	}
} 

Problem is when DockItem is in floating state, its container is a standard Form object and the added child control goes in form's client area below title bar, and not inside the bar. We'll look for some way to allow customizing it in next few days.

Regards,
Slavcho

Any advances?

Our developer is working on it.

Try this build -
https://mindfusion.eu/_beta/dock_tbar_buttons.zip

It adds a TitleBarButton class and three list properties used as titlebar templates,  where you can add buttons depending on the dock-item state: DockedTitleBarButtons, UndockedTitleBarButtons, TabbedTitleBarButtons. You can add a custom button like this -

var myTitleButton = new TitleBarButton();
myTitleButton.ButtonPen = new Pen(Color.Red);
myTitleButton.ButtonImage = Image.FromFile(...);
//myTitleButton.Draw += MyTitleButton_Draw;
myTitleButton.OnClick += MyTitleButton_OnClick;
dockControl1.DockedTitleBarButtons.Add(myTitleButton);

private void MyTitleButton_OnClick(object sender, MouseEventArgs e)
{
  MessageBox.Show("Custom button clicked", "Custom", MessageBoxButtons.OK);
}

private void MyTitleButton_Draw(object source, DrawEventArgs e)
{
  var tbb = source as TitleBarButton;
  if (tbb == null)
    return;
  e.Graphics.DrawArc(tbb.ButtonPen, new Rectangle(tbb.X, tbb.Y, tbb.Width, tbb.Height), 0, 360);
} 

Regards,
Slavcho

Hi ...

There appears to be just one or two minor problems ...

1) an exception is caused if there's nothing attached to the click event

There should be an event attached to the button - so that's not really a hardship -

2) the click event triggers whether the mouse is over the button or not when the button is released.

On checking, this might be the mindfusion standard way of doing it ... I was under the impression that a click event isn't activated if the cursor is no longer over the button when the mouse button is lifted. - I could be wrong.

8^)
Mark

Wey hey! This works gr8!

Thanks!!!

8^)
Mark