Bug 324070 Refactor data set editor pages' codes[30967]
Build Identifier: 20100828 Refactor data set editor pages' codes. Reproducible: Always
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/data/ui/util/DataSetProvider.java
if ( columnName.equals( dsItemModel[m].getName( ) ) )
					{
						found = true;
						break;
					}
				}
				if ( !found )
				{
					try
					{
						
						handle.removeItem( rsColumn );
					}
					catch ( PropertyValueException e )
					{
					}
				}
			}
		}
	}
	/**
	 * To rollback original datasetHandle, clean unused computed columm
	 * 
	 * @param dataSetHandle
	 * @param dsItemModel
	 */
	private void cleanUnusedComputedColumn( DataSetHandle dataSetHandle,
			DataSetViewData[] dsItemModel )
	{
		PropertyHandle handle = dataSetHandle.getPropertyHandle( DataSetHandle.COMPUTED_COLUMNS_PROP );