Bug 209617 Method to retrieve "paramType" property from IScalarParameterDefn is not provided.
Hi, To display parameter "List-box" in User Interface, its required to have value of "paramType" PROPERTY (i.e. simple,multi-value or ad-voc). There is no such method introduced in IScalarParameterDefn to get this value so that list-box can be rendered in "Drop-down" or "Multiple Select" format in User Interface. Thanks Prashant Malshette
engine/org.eclipse.birt.report.engine/src/org/eclipse/birt/report/engine/api/impl/GetParameterDefinitionTask.java
{
			return Collections.EMPTY_LIST;
		}
		return this.getSelectionList( requestedParam.getName( ) );
	}
	public Collection getSelectionTreeForCascadingGroup(
			String parameterGroupName )
	{
		CascadingParameterGroupHandle parameterGroup = getCascadingParameterGroup( parameterGroupName );
		if ( parameterGroup == null )
			return Collections.EMPTY_LIST;
		SlotHandle parameters = parameterGroup.getParameters( );
		int parameterCount = parameters.getCount( );
		if ( DesignChoiceConstants.DATA_SET_MODE_SINGLE.equals( parameterGroup
				.getDataSetMode( ) ) )
		{
			
			IResultIterator resultIterator = getResultSetOfCascadingGroup( parameterGroup );
			if ( resultIterator == null )
			{
				return Collections.EMPTY_LIST;
			}
			Collection selectionTree = populateToSelectionTree( resultIterator,
					parameterGroup );
			close( resultIterator );
			return selectionTree;
		}
		else
		{
			ParameterHelper[] parameterHelpers = getParameterHelpers( parameterGroup );