Bug 189585 [Linux]Data expression input box cannot show completely.
Description: Data expression input box cannot show completely. Build number:2.2.0.v20070529 Test Platform: Linux Steps to reproduce: 1. Insert a data item. Expected result: Expression input box show completely. Actual result: See attached. Error log:N/A
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/dialogs/CrosstabBindingDialogHelper.java
setTypeSelect( DATA_TYPE_CHOICE_SET.findChoice( getBinding( ).getDataType( ) )
					.getDisplayName( ) );
			setDataFieldExpression( getBinding( ).getExpression( ) );
		}
		if ( this.getBinding( ) != null )
		{
			this.txtName.setEnabled( false );
		}
		if ( isAggregate( ) )
		{
			initFunction( );
			initDataFields( );
			initFilter( );
			initAggOn( );
		}
	}
	private void initAggOn( )
	{
		try
		{
			CrosstabReportItemHandle xtabHandle = (CrosstabReportItemHandle) ( (ExtendedItemHandle) getBindingHolder( ) ).getReportItem( );
			String[] aggOns = getAggOns( xtabHandle );
			cmbAggOn.setItems( aggOns );
			if ( getBinding( ) != null )
			{
				List aggOnList = getBinding( ).getAggregateOnList( );
				String aggstr = "";
				int i = 0;
				for ( Iterator iterator = aggOnList.iterator( ); iterator.hasNext( ); )
				{