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
} );
		int[] columnWidths = new int[]{
				160, 115, 135, 145,
		};
		String[] columns = new String[]{
				COLUMN_NAME, COLUMN_DATA_SET, COLUMN_VALUE, COLUMN_DISPLAY_TEXT
		};
		cellEditors = new CellEditor[]{
				new TextCellEditor( table ),
				new ComboBoxCellEditor( table,
						ChoiceSetFactory.getDataSets( ),
						SWT.READ_ONLY ),
				new ComboBoxCellEditor( table, new String[0], SWT.READ_ONLY ),
				new ComboBoxCellEditor( table, new String[0], SWT.READ_ONLY ),
		};
		for ( int i = 0; i < columns.length; i++ )
		{
			TableColumn column = new TableColumn( table, SWT.LEFT );
			column.setResizable( true );
			column.setText( columns[i] );
			column.setWidth( columnWidths[i] );
		}
		table.setLayoutData( data );
		valueTable = new TableViewer( table );
		valueTable.setCellEditors( cellEditors );
		valueTable.setColumnProperties( columns );
		valueTable.setContentProvider( contentProvider );
		valueTable.setLabelProvider( labelProvider );
		valueTable.setCellModifier( cellModifier );
		valueTable.addSelectionChangedListener( new ISelectionChangedListener( ) {