Configure print preview in ListGrid

Hello,

I have extended a ListGrid and I have added a ToolStript at the end of the table:

Code:

public class AppGrid extends ListGrid{



// Constructor

public AppGrid(){

        // Creating toolstrip

        ToolStrip tool = new ToolStrip ();

        // Adding some buttons in toolstrip: print preview, export, etc..

        [...]

        //Adding toolstrip in ListGrid

        setGridComponents(new Object[] {ListGridComponent.HEADER, ListGridComponent.FILTER_EDITOR, ListGridComponent.BODY,tool });

}

Now, I want a print preview for this table without the ToolStrip. I have read the documentation and I am trying to omit ToolStrip from print preview but it is ignored:

Code:

public void onClick(ClickEvent event) {

        if (grid != null) {

                PrintProperties printProp = new PrintProperties();

                String[] myommited = new String[1];

                myommited[0] = "ToolStrip";

                printProp.setOmitControls(myommited);

                Canvas.showPrintPreview(new Object[] { grid },printProp,"Print preview", null);

        }

}

Any idea?

Thank you in advance!