Bug 177296 Redundant Values are added to parameter list in preview mode.[0705]
Description: Redundant Values are added to parameter list in preview mode. Build number:2.2.0.v20070312 Steps to reproduce: 1. Open attached report. 2. Preview. 3. Select datetime value and click OK. 4. Click Show Report Parameters button, check values Expected result: Values are unchanged and only one datetime value in list. Actual result: Two same datetime values in list.
viewer/org.eclipse.birt.report.viewer/birt/WEB-INF/classes/org/eclipse/birt/report/service/actionhandler/BirtGetCascadeParameterActionHandler.java
SelectionList[] selectionLists = new SelectionList[cascParamMap
					.size( )];
			int i = 0;
			for ( Iterator it = cascParamMap.keySet( ).iterator( ); it
					.hasNext( ); )
			{
				selectionLists[i] = new SelectionList( );
				String name = (String) it.next( );
				selectionLists[i].setName( name );
				List selections = (List) cascParamMap.get( name );
				SelectItemChoice[] SelectItemChoices = getVectorFromList( selections );
				selectionLists[i].setSelections( SelectItemChoices );
				i++;
			}
			cascadeParameter.setSelectionList( selectionLists );
		}
		handleUpdate( cascadeParameter );
	}
	/**
	 * Get vector from the list.
	 * 
	 * @param list
	 * @return
	 */
	private SelectItemChoice[] getVectorFromList( List list )
	{
		SelectItemChoice[] selectionList = new SelectItemChoice[list.size( )];
		for ( int i = 0; i < list.size( ); i++ )
		{
			SelectItemChoice item = (SelectItemChoice) list.get( i );