Bug 189806 Add aggregation data item to a table - Exception is thrown
- Add a table with dataset to a report design - DnD aggregation from palette to the table footer - Aggregation builder is shown - Choose SUM function on "Quantity orderred" data field Current behavior - A exception is thrown which say java.util.EmptyStackException
xtab/org.eclipse.birt.report.item.crosstab.ui/src/org/eclipse/birt/report/item/crosstab/internal/ui/dialogs/CrosstabBindingDialogHelper.java
else
			{
				if ( getBinding( ) == null )
				{
					ComputedColumn newBinding = StructureFactory.newComputedColumn( getBindingHolder( ),
							txtName.getText( ) );
					for ( int i = 0; i < DATA_TYPE_CHOICES.length; i++ )
					{
						if ( DATA_TYPE_CHOICES[i].getDisplayName( )
								.endsWith( cmbType.getText( ) ) )
						{
							newBinding.setDataType( DATA_TYPE_CHOICES[i].getName( ) );
							break;
						}
					}
					newBinding.setExpression( txtExpression.getText( ) );
					newBinding.setDisplayName( txtDisplayName.getText( ) );
					this.binding = DEUtil.addColumn( getBindingHolder( ),
							newBinding,
							true );
				}
				else
				{
					for ( int i = 0; i < DATA_TYPE_CHOICES.length; i++ )
					{
						if ( DATA_TYPE_CHOICES[i].getDisplayName( )
								.endsWith( cmbType.getText( ) ) )
						{
							this.binding.setDataType( DATA_TYPE_CHOICES[i].getName( ) );
							break;