Bug 210892 [Regression]The arguments of aggregation builder can not be modified
Description: [Regression]The arguments of aggregation builder can not be modified Build number: 2.3.0.v20071126-0800 Steps to reproduce: 1, New a table 2, Drag a aggregation builder into table 3, Specify the datafield, function to percentile and argument to 0.3 4, Reopen the aggregation and change the argument to 0.4 Expected result: After step4, the artument is changed to 0.4 Actual result: Nothing happened after step4, the argument is still 0.3 Error log:
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/internal/ui/dialogs/BindingDialogHelper.java
Control[] children = argsComposite.getChildren( );
		for ( int i = 0; i < children.length; i++ )
		{
			children[i].dispose( );
		}
		IAggregationInfo function = getFunctionByDisplayName( cmbFunction.getText( ) );
		if ( function != null )
		{
			argsMap.clear( );
			List args = getFunctionArgNames( function.getName( ) );
			if ( args.size( ) > 0 )
			{
				( (GridData) argsComposite.getLayoutData( ) ).exclude = false;
				( (GridData) argsComposite.getLayoutData( ) ).heightHint = SWT.DEFAULT;
				for ( Iterator iterator = args.iterator( ); iterator.hasNext( ); )
				{
					String argName = (String) iterator.next( );
					Label lblArg = new Label( argsComposite, SWT.NONE );
					lblArg.setText( argName + ":" ); 
					lblArg.setLayoutData( new GridData( GridData.FILL_HORIZONTAL
							| GridData.GRAB_HORIZONTAL ) );
					Text txtArg = new Text( argsComposite, SWT.BORDER );
					GridData gridData = new GridData( );
					gridData.widthHint = txtFilter.getBounds( ).width - 7;
					txtArg.setLayoutData( gridData );
					createExpressionButton( argsComposite, txtArg );
					argsMap.put( argName, txtArg );
				}
			}
			else