使用OWC生成数据分析图表

private   void  getchart(DataTable dt, int rows)
    {
         try
        {
             int  count  =  dt.Rows.Count;

if (count < 3)
            {
                divchart.InnerHtml = "<span style='color:red'>数据少于3条，无法生成图表！</span>";

return;
            }
             // 存放月
             string [] MonNum  =   new   string [count];
             // 存放数据
             string [] MonCount  =   new   string [count];
             string [] MonCount1  =   new   string [count];
             // 为数组赋值
             for  ( int  i  =   0 ; i  <  count; i ++ )
            {
                MonNum[i]  =  dt.Rows[i][ 3 ].ToString();
                MonCount[i]  =  dt.Rows[i][ 1 ].ToString();
                MonCount1[i]  =  dt.Rows[i][ 2 ].ToString();
            }
             string  strXdata  =  String.Empty;
             foreach  ( string  strData  in  MonNum)
            {
                strXdata  +=  strData  +   " \t " ;
            }
             string  strYdata  =  String.Empty;
             foreach  ( string  strValue  in  MonCount)
            {
                strYdata  +=  strValue  +   " \t " ;
            }

             string  strYdata1  =  String.Empty;
             foreach  ( string  strValue  in  MonCount1)
            {
                strYdata1  +=  strValue  +   " \t " ;
            }

            ChartSpace laySpace  =   new  ChartSpaceClass();


            ChChart InsertChart  =  laySpace.Charts.Add( 0 );


            InsertChart.Type  =  ChartChartTypeEnum.chChartTypeBarClustered;

             string  type  =   " 1 " ;
             if  (Request.QueryString[ " type " ]  !=   null )
            {
                type  =  Request.QueryString[ " type " ].ToString();
            }

            InsertChart.HasLegend  =   true ;
            InsertChart.HasTitle  =   true ;
            InsertChart.Title.Caption  =   " 销售记录 " ;

            InsertChart.Axes[ 0 ].HasTitle  =   true ;
            InsertChart.Axes[ 0 ].Title.Caption  =   string .Format( " 日期（{0}） " , type  ==   " 1 "   ?   " 日 "  :  " 月 " );

            

             // 刻度格式 
            
            InsertChart.Axes[ 1 ].HasTitle  =   true ;
            InsertChart.Axes[ 1 ].Scaling.SplitMinimum  =   200 ;
            InsertChart.Axes[ 1 ].Title.Caption  =   " 金额（元） " ;

            InsertChart.SeriesCollection.Add( 0 );
            InsertChart.SeriesCollection[ 0 ].DataLabelsCollection.Add();
            InsertChart.SeriesCollection[ 0 ].DataLabelsCollection[ 0 ].HasValue  =   true ;
            InsertChart.SeriesCollection[ 0 ].SetData(ChartDimensionsEnum.chDimSeriesNames,  + ( int )ChartSpecialDataSourcesEnum.chDataLiteral,  " 销售总额 " );
            InsertChart.SeriesCollection[ 0 ].SetData(ChartDimensionsEnum.chDimCategories,  + ( int )ChartSpecialDataSourcesEnum.chDataLiteral, strXdata);
            InsertChart.SeriesCollection[ 0 ].SetData(ChartDimensionsEnum.chDimValues, ( int )ChartSpecialDataSourcesEnum.chDataLiteral, strYdata);

            InsertChart.Axes[ 0 ].GroupingType  =  OWC10.ChartAxisGroupingEnum.chAxisGroupingManual;
            InsertChart.Axes[ 0 ].GroupingUnitType  =  ChartAxisUnitTypeEnum.chAxisUnitMonth;
            InsertChart.Axes[ 0 ].NumberFormat  =   " yyyy-MM " ;
            InsertChart.Axes[ 0 ].GroupingUnit  =   1 ;


            InsertChart.SeriesCollection.Add( 1 );
            InsertChart.SeriesCollection[ 1 ].DataLabelsCollection.Add();
            InsertChart.SeriesCollection[ 1 ].DataLabelsCollection[ 0 ].HasValue  =   true ;
            InsertChart.SeriesCollection[ 1 ].SetData(ChartDimensionsEnum.chDimSeriesNames,  + ( int )ChartSpecialDataSourcesEnum.chDataLiteral,  " 已消费 " );
            InsertChart.SeriesCollection[ 1 ].SetData(ChartDimensionsEnum.chDimCategories,  + ( int )ChartSpecialDataSourcesEnum.chDataLiteral, strXdata);
            InsertChart.SeriesCollection[ 1 ].SetData(ChartDimensionsEnum.chDimValues, ( int )ChartSpecialDataSourcesEnum.chDataLiteral, strYdata1);

             string  fn  =  DateTime.Now.ToString( " yyyyMMddHHmmss " )  +   " .gif " ;
             string  strAbsolutePath  =  (Server.MapPath(Config.Temp_Path))  +  fn;
            int height = rows * (rows > 10 ? 30 : 50);//数据间宽度
            laySpace.ExportPicture(strAbsolutePath, "GIF", 660, height);       

　　　　     divchart.InnerHtml  =   " <img src='/upload/temp/ "   +  fn  +   " '> " ;
        }
         catch  (Exception ex)
        {
            Console.Write(ex.Message);
        }
    }

本文转自94cool博客园博客，原文链接：http://www.cnblogs.com/94cool/archive/2011/05/11/2043241.html，如需转载请自行联系原作者