Bug 200143 If do not allow user to modify the expression, the button fx should be disabled[0005]
Description: If do not allow user to modify the expression, the button fx should be disabled[0005] Build number: 2.2.1.v20070816-0630 Steps to reproduce: 1, New a table1 with one binding 2, New a table share table1's result set 3, Drag a data item into the table 4, after specify the column binding name 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 Error log:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
for ( Iterator iterator = getBindingHolder( ).getDataBindingReference( )
						.getColumnBindings( )
						.iterator( ); iterator.hasNext( ); )
				{
					ComputedColumnHandle computedColumn = (ComputedColumnHandle) iterator.next( );
					if ( isAggregate( ) )
					{
						if ( computedColumn.getAggregateFunction( ) == null
								|| computedColumn.getAggregateFunction( )
										.equals( "" ) )
							continue;
					}
					else
					{
						if ( computedColumn.getAggregateFunction( ) != null
								&& !computedColumn.getAggregateFunction( )
										.equals( "" ) )
							continue;
					}
					cmbName.add( computedColumn.getName( ) );
					if ( getBinding( ).getName( )
							.equals( computedColumn.getName( ) ) )
						cmbName.select( i );
					i++;
				}
				setDisplayName( getBinding( ).getDisplayName( ) );
				for ( i = 0; i < DATA_TYPE_CHOICES.length; i++ )
				{
					if ( DATA_TYPE_CHOICES[i].getName( )
							.equals( getBinding( ).getDataType( ) ) )