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
}
					}
					Object newHandle = InsertInLayoutUtil.performInsert( elementHandle,
							getTargetEditPart( ) );
					if ( newHandle == null )
						return false;
					setModel( newHandle );
					return super.preHandleMouseUp( );
				}
				catch ( SemanticException e )
				{
					ExceptionHandler.handle( e );
				}
			}
			return false;
		}
		/*
		 * (non-Javadoc)
		 * 
		 * @see org.eclipse.birt.designer.internal.ui.editors.schematic.tools.AbstractToolHandleExtends#preHandleMouseDown()
		 */
		public boolean preHandleMouseDown( )
		{
			return false;
		}
	}
	/**
	 * Provides element building support for data set column.
	 */
	public static class DataSetColumnToolExtends extends