Hi, I'm fighting the same problem with VB.net arranging multiple toolbars programmatically.
I'm using the follwing solution, don't know if it is the best but it works:
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myDock.Controls.Add(tb1)
tb2.Location =
New Point(tb1.Width, 0)myDock.Controls.AddRange(New System.Windows.Forms.Control() {tb2})
myDock.Dock = DockStyle.Bottom
Best,
Robert