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
private String[] getGroups( )
	{
		if ( getBindingHolder( ) instanceof ListingHandle )
		{
			ListingHandle listingHandle = (ListingHandle) getBindingHolder( );
			String[] groups = new String[listingHandle.getGroups( ).getCount( )];
			for ( int i = 0; i < groups.length; i++ )
			{
				groups[i] = ( (GroupHandle) listingHandle.getGroups( ).get( i ) ).getName( );
			}
			return groups;
		}
		return new String[0];
	}
	private void setDataFieldExpression( String expression )
	{
		this.expression = expression;
		if ( expression != null )
		{
			if ( cmbDataField != null && !cmbDataField.isDisposed( ) )
			{
				cmbDataField.setText( expression );
			}
			if ( txtExpression != null && !txtExpression.isDisposed( ) )
			{
				txtExpression.setText( expression );
			}
		}
	}
	private void setName( String name )