java - GWT: Dynamically convert HorizontalPanel to VerticalPAnel -


how can programatically convert horizontalpanel verticalpanel? possible?

from:

<g:horizontalpanel ui:field="panel">  </g:horizontalpanel>

to:

<g:verticalpanel ui:field="panel">  </g:verticalpanel>

would snippet below work? (dont have gwt environment setup test it):

public someclass extends composite {  @uifield cellpanel panel;      public someclass() {             panel = new verticalpanel;     } }

or better why dont use in ui.xml 

<g:cellpanel ui:field="panel">  </g:cellpanel >

and want in java code (since horizontalpanel , verticalpanel subclasses of cellpanel)?


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