Bug 200483 The fx button of aggregation builder should be also disable if it share bindings from other aggregation[0005]
Description: The fx button of aggregation builder should be also disable if it share bindings from other aggregation[0005] Build number: 2.2.1.v20070820-0630 Steps to reproduce: 1, New a table1 based on dataset and has a aggregation binding 2, New a table share table1's result set 3, Drag a aggregation to table2's footer row area 4, Try to modify the expression Expected result: The expression button should be disable. Actual result: The expression can be edit but can not save, so the button should be disable
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
setTypeSelect( DATA_TYPE_CHOICES[i].getDisplayName( ) );
							break;
						}
					}
					setDataFieldExpression( getBinding( ).getExpression( ) );
				}
			}
			else
			{
				setTypeSelect( dataTypes[0] );
				this.newBinding = StructureFactory.newComputedColumn( getBindingHolder( ),
						isAggregate( ) ? DEFAULT_AGGREGATION_NAME
								: DEFAULT_ITEM_NAME );
				setName( this.newBinding.getName( ) );
			}
		}
		else
		{
			if ( isRef )
			{
				int i = 0;
				for ( Iterator iterator = getBindingHolder( ).getDataBindingReference( )
						.getColumnBindings( )
						.iterator( ); iterator.hasNext( ); )
				{
					ComputedColumnHandle computedColumn = (ComputedColumnHandle) iterator.next( );
					if ( isAggregate( ) )
					{
						if ( computedColumn.getAggregateFunction( ) == null
								|| computedColumn.getAggregateFunction( )