Grid++报表的 柱状图（一）

function FillDataChart(DataURL)
{
 3     //获得柱状图报表节对象 
    var Chart = Report.ControlByName("Chart1").AsChart;

    
   
     //从网上取XML数据并转存到xmlDom中
    var xml = Report.ExtractXMLFromURL(DataURL);
    var xmlDom = CreateXMLDOM();
    xmlDom.async=false;
    xmlDom.load(xml);
   
 
    //将xmlDom中的数据赋值给图表
    var RowNodes = xmlDom.childNodes[0];
    var RowCount = RowNodes.childNodes.length;
    Chart.GroupCount =RowCount;
    Chart.SeriesCount=RowNodes.childNodes[0].childNodes.length-1+1;
       //首先将原来数据全部置为0
    for (SeriesIndex=0; SeriesIndex<Chart.SeriesCount; ++SeriesIndex)
        for (GroupIndex=0; GroupIndex<Chart.GroupCount; ++GroupIndex)
            Chart.Value(SeriesIndex, GroupIndex) = 0;
    
    
    for(i=0; i<RowNodes.childNodes.length; ++i)
    {      
      Chart.GroupLabel(i)=RowNodes.childNodes[i].childNodes[0].text;
    }
    for(i=1; i<RowNodes.childNodes[0].childNodes.length; ++i)
    {
    Chart.SeriesLabel(i-1)=RowNodes.childNodes[0].childNodes[i].baseName;
    }
    Chart.SeriesLabel(Chart.SeriesCount-1)="毛利";
    var MaxVal = 0; //找出值中的最大值，以便设定图表的 YAxisMaximum 属性
    for (i=0; i<RowCount; ++i)
    {
        var FieldNodes = RowNodes.childNodes[i];
        
        for( j=1; j<FieldNodes.childNodes.length; ++j)
        {
          var Val=parseInt(FieldNodes.childNodes[j].text);
          if (MaxVal < Val)
            MaxVal = Val
          Chart.Value(j-1,i) = Val;    
        }
         Chart.Value(Chart.SeriesCount-1,i) =  Chart.Value(0,i)- Chart.Value(2,i)- Chart.Value(4,i);
    }    
    Chart.YAxisMaximum = MaxVal;

}