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
public void setDesignHandle( DesignElementHandle handle )
	{
		this.designHandle = handle;
		initializeProviderType( );
		inilializeColumnList( handle );
		initializeParamterBinding( handle );
	}
	protected void inilializeColumnList( DesignElementHandle handle )
	{
		columnList = DEUtil.getVisiableColumnBindingsList( handle );
	}
	private void initializeParamterBinding( DesignElementHandle handle )
	{
		if ( handle instanceof ReportItemHandle )
		{
			ReportItemHandle inputHandle = (ReportItemHandle) handle;
			List list = new ArrayList( );
			for ( Iterator iterator = inputHandle.paramBindingsIterator( ); iterator.hasNext( ); )
			{
				ParamBindingHandle paramBindingHandle = (ParamBindingHandle) iterator.next( );
				list.add( paramBindingHandle );
			}
			bindingParams = new ParamBindingHandle[list.size( )];
			list.toArray( bindingParams );
		}
	}
	/**
	 * Returns current highlight rule handle, this handle can be newly created
	 * or set by the updateHandle method.
	 *