/// </summary>

        /// <param name="dbDtViewWrk">传递的数据</param>

        /// <param name="strAbsolutePath">绝对路径</param>

        /// <param name="strRelativePath">相对路径</param>

        /// <param name="ChartType">要画的图格式（饼图或者折线图等）</param>

        /// <param name="strTitle">统计名称</param>

public void PaintToImage(DataTable dbDtViewWrk, string strAbsolutePath, string strRelativePath, ChartChartTypeEnum ChartType, string strTitle)

        {

            string strSeriesName = "图例";

            //存放项目

            string[] ItemsName = new string[dbDtViewWrk.Rows.Count];

            //存放数据

            string[] ItemsCount = new string[dbDtViewWrk.Rows.Count];

            //刻度单位

            int iUnit = ;

            //最大值

            int iMaxValue = ;

            string strXdata = String.Empty;

            string strYdata = String.Empty;

                //为数组赋值

                for (int i = ; i < dbDtViewWrk.Rows.Count; i++)

                {

                    ItemsName[i] = dbDtViewWrk.Rows[i][].ToString();  //要统计的字段名字

                    ItemsCount[i] = dbDtViewWrk.Rows[i][].ToString();//要统计的字段数据

                }

            //为x轴指定特定字符串，以便显示数据

            // string strXdata = String.Empty;

            foreach (string strData in ItemsName)

            {

                strXdata += strData + "\t";

            }

            // string strYdata = String.Empty;

            //为y轴指定特定的字符串，以便与x轴相对应

            foreach (string strValue in ItemsCount)

            {

                strYdata += strValue + "\t";

                if (int.Parse(strValue) > iMaxValue)

                {

                    iMaxValue = int.Parse(strValue);

                }

            }

            if (iMaxValue > )

            {

                iUnit = iMaxValue / ;

            }

            //创建ChartSpace对象来放置图表

            ChartSpace laySpace = new ChartSpaceClass();

            //在ChartSpace对象中添加图表

            ChChart InsertChart = laySpace.Charts.Add();

            //底座颜色

            InsertChart.PlotArea.Interior.Color = "white";

            //指定绘制图表的类型。类型可以通过OWC.ChartChartTypeEnum枚举值得到

            InsertChart.Type = ChartType;//柱形图

            //指定图表是否需要图例标注

            InsertChart.HasLegend = true;

            InsertChart.BarWidth = ;

            InsertChart.Legend.Position = ChartLegendPositionEnum.chLegendPositionBottom;

            InsertChart.HasTitle = true;//为图表添加标题

            InsertChart.Title.Caption = strTitle;//标题名称

            //为x,y轴添加图示说明

            if (ChartType.ToString().IndexOf("ChartTypePie") == -)

            {

                InsertChart.Axes[].Font.Size = ; //X轴

                InsertChart.Axes[].Font.Size = ; //Y轴

                InsertChart.Legend.Font.Size = ;

                InsertChart.Axes[].HasTitle = true;

                InsertChart.Axes[].Title.Caption = "";//月份

                InsertChart.Axes[].HasTitle = true;

                //InsertChart.Axes[1].Scaling.SplitMinimum = 200;

                InsertChart.Axes[].Title.Caption = "数量";

                InsertChart.Axes[].MajorUnit = iUnit;  //刻度单位设置

                InsertChart.Axes[].Scaling.Minimum = ;//最小刻度=0

            }

            //添加一个series系列

            InsertChart.SeriesCollection.Add();

            //给定series系列的名字

            InsertChart.SeriesCollection[].SetData(ChartDimensionsEnum.chDimSeriesNames, +(int)ChartSpecialDataSourcesEnum.chDataLiteral, strSeriesName);

            //给定分类

            strXdata = strXdata.Substring(, strXdata.Length - );

            InsertChart.SeriesCollection[].SetData(ChartDimensionsEnum.chDimCategories, +(int)ChartSpecialDataSourcesEnum.chDataLiteral, strXdata);

            //给定值

            strYdata = strYdata.Substring(, strYdata.Length - );

            InsertChart.SeriesCollection[].SetData(ChartDimensionsEnum.chDimValues, (int)ChartSpecialDataSourcesEnum.chDataLiteral, strYdata);

            //添加标签

            ChDataLabels dls = InsertChart.SeriesCollection[].DataLabelsCollection.Add();

            if (ChartType.ToString().IndexOf("ChartTypePie") != -)

            {

                dls.Position = ChartDataLabelPositionEnum.chLabelPositionCenter;

                dls.HasPercentage = false;

                //dls.HasValue = false;

                dls.HasCategoryName = false;

                //指定图表是否需要图例标注

                InsertChart.HasLegend = true;

                InsertChart.Legend.Position = ChartLegendPositionEnum.chLegendPositionBottom;

            }

            //输出文件.

            int iImageLength = ;

            int iImageWidth = ;

            //从Config文件取得设置

            //iImageLength = int.Parse(WebConfigurationManager.AppSettings["ShowImageLength"]);

            //iImageWidth = int.Parse(WebConfigurationManager.AppSettings["ShowImageWidth"]);

            iImageLength = ;

            iImageWidth = ;

            string strImageName = ChartType.ToString() + "_" + Guid.NewGuid().ToString("N") + ".png";

            laySpace.ExportPicture(strAbsolutePath + strImageName, "PNG", , );

            //把图片添加到placeholder中，并在页面上显示

            string strImageTag = "<IMG WIDTH='450' SRC='" + strRelativePath + strImageName + "'/>";

            this.PlaceHolder1.Controls.Add(new LiteralControl(strImageTag));

           // return strImageTag;

        }