How to uses a ToolStripContainer whith Dock=Fill on a MDI parent?

How to uses a ToolStripContainer whith Dock=Fill on a MDI parent???... When I drop a ToolStripContainer on a MDI parent and assing fill to a property Dock it hide all t开发者_如何学JAVAhe MDI children.

thanks...

---

try adding the MDI child form to the ToolStripContainer:

toolStripContainer1.ContentPanel.Controls.Add(frm);

---

the MDILayout doesn't work on the child forms