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
dialog.getOkButton( ).setEnabled( false );
		}
		if ( this.binding == null )
		{
			for ( Iterator iterator = this.bindingHolder.getColumnBindings( )
					.iterator( ); iterator.hasNext( ); )
			{
				ComputedColumnHandle computedColumn = (ComputedColumnHandle) iterator.next( );
				if ( computedColumn.getName( ).equals( txtName.getText( ) ) )
				{
					if ( dialog.getOkButton( ) != null )
						dialog.getOkButton( ).setEnabled( false );
					this.messageLine.setText( Messages.getFormattedString( "BindingDialogHelper.error.nameduplicate", 
							new Object[]{
								txtName.getText( )
							} ) );
					this.messageLine.setImage( PlatformUI.getWorkbench( )
							.getSharedImages( )
							.getImage( ISharedImages.IMG_OBJS_ERROR_TSK ) );
					return;
				}
			}
		}
		this.messageLine.setText( "" ); 
		this.messageLine.setImage( null );
		if ( txtExpression != null
				&& ( txtExpression.getText( ) == null || txtExpression.getText( )
						.trim( )
						.equals( "" ) ) ) 
		{