Bug 177439 Need an easy way to determine default value for a dynamic parameter
Currently, I have to bring up the data set editor, preview the results in the data set and make a mental note of the value to use for a report parameter that depends on a data set. It would be nice to have a drop down on the default value field, such as <Select value> which when selected queries the data set and presents me with a list to select from.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/CascadingParametersDialog.java
return elementsList.toArray( );
		}
		public void dispose( )
		{
		}
		public void inputChanged( Viewer viewer, Object oldInput,
				Object newInput )
		{
		}
	};
	private ITableLabelProvider labelProvider = new ITableLabelProvider( ) {
		public Image getColumnImage( Object element, int columnIndex )
		{
			return null;
		}
		public String getColumnText( Object element, int columnIndex )
		{
			String value = null;
			ScalarParameterHandle paramHandle = null;
			if ( element instanceof ScalarParameterHandle )
			{
				paramHandle = (ScalarParameterHandle) element;
			}
			if ( paramHandle == newParameter )
			{
				if ( columnIndex == 0 )
				{
					String paramName;
					paramName = paramHandle.getName( );
					if ( !givenName )