Bug 209126 DataException throws out when set highlight condition in sub-report[0302]
Description: Set highlight condition in sub-report, when "select value..." in the highlight dialog, DataException throws out. Build version:2.3.0.v20071108-0800 Steps to reproduce: 1.Get the attached report design file, which contains a sub-report. 2.Select the inner table, and then go to "highlight" tab in the property editor view to set a highlight rule. When click "select value...", DataException throws out. Error: The expression's value can not be retrieved. An error happened in data type conversion. Can not convert the value of org.eclipse.birt.data.engine.script.DataExceptionMocker@79c17b to Integer type.
UI/org.eclipse.birt.report.designer.ui/src/org/eclipse/birt/report/designer/ui/dialogs/HighlightRuleBuilder.java
previewLabel.setLinethrough( false );
			}
			if ( style.getTextOverline( )
					.equals( DesignChoiceConstants.TEXT_OVERLINE_OVERLINE ) )
			{
				previewLabel.setOverline( true );
			}
			else
			{
				previewLabel.setOverline( false );
			}
			previewLabel.updateView( );
		}
	}
	/**
	 * For newly create highlight rule, transfer the handle as <b>null </b>, or
	 * transfer the handle as current highlight rule handle to be modified.
	 * 
	 * @param handle
	 * @param handleCount
	 *            current highlight rule items count.
	 */
	public void updateHandle( HighlightRuleHandle handle, int handleCount )
	{
		this.handle = handle;
		this.handleCount = handleCount;
	}
	/*
	 * Set design handle for HighlightRule builder
	 */