Bug 135497 Data Type is not correct when "Generate All" for Data item
Description: Create a sample datasource and dataset. Insert a data into layout, bind with the dataset.Click "Generate All" to get the Data Binding columns, but the displayed data type is not consistent with the actual one.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/palette/BasePaletteFactory.java
{
		PaletteRoot root = new PaletteRoot( );
		root.add( createControlGroup( root ) );
		return root;
	}
	/**
	 * Creates default tools category, which include selection and marquee tools
	 * 
	 * @param root
	 *            the root
	 * @return PaletteContainer contains default tools
	 */
	protected static PaletteContainer createControlGroup( PaletteRoot root )
	{
		PaletteGroup controlGroup = new PaletteGroup( PALETTE_GROUP_TEXT );
		List entries = new ArrayList( );
		ToolEntry tool = new PanningSelectionToolEntry( POINTER_SELECT_LABEL,
				TOOL_TIP_POINTER_SELECT );
		entries.add( tool );
		root.setDefaultEntry( tool );
		tool = new MarqueeToolEntry( RECTANGEL_SELECT_LABEL,
				TOOL_TIP_RECTANGLE_SELECT );
		entries.add( tool );
		controlGroup.addAll( entries );
		return controlGroup;
	}
	/**
	 * Provides element building support for table element.
	 */
	public static class TableToolExtends extends AbstractToolHandleExtends