如何在mxgraph的mxCell标签中添加自定义属性？ 。

Question

如何在mxgraph的mxCell标签中添加自定义属性？ 我想添加value2 =＆＃34; customValue

rental_ad_occupancy_calendar/main

//函数是

<mxGraphModel dx="872" dy="535" grid="1" gridSize="10" guides="1" tooltips="1" connect="1" arrows="1" fold="1" page="1" pageScale="1" pageWidth="850" pageHeight="1100" background="#ffffff">
      <root>
        <mxCell id="0"/>
        <mxCell id="1" parent="0"/>

        <mxCell id="2" value="wfState_1" value2="customValue" style="strokeColor:red" vertex="1" parent="1">
          <mxGeometry x="50" y="110" width="120" height="70" as="geometry"/>
        </mxCell>
      </root>
    </mxGraphModel>