/// </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 = 1;            //最大值            int iMaxValue = http://www.mamicode.com/0;            string strXdata =http://www.mamicode.com/ String.Empty;            string strYdata =http://www.mamicode.com/ String.Empty;                           //为数组赋值                for (int i = 0; i < dbDtViewWrk.Rows.Count; i++)                {                    ItemsName[i] = dbDtViewWrk.Rows[i][0].ToString();  //要统计的字段名字                    ItemsCount[i] = dbDtViewWrk.Rows[i][5].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 = http://www.mamicode.com/String.Empty;            foreach (string strData in ItemsName)            {                strXdata += strData + "\t";            }            // string strYdata = http://www.mamicode.com/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 > 20)            {                iUnit = iMaxValue / 10;            }            //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(0);                        //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 = 0;            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") == -1)            {                InsertChart.Axes[0].Font.Size = 11; //X轴                InsertChart.Axes[1].Font.Size = 11; //Y轴                InsertChart.Legend.Font.Size = 11;                InsertChart.Axes[0].HasTitle = true;                InsertChart.Axes[0].Title.Caption = "";//月份                InsertChart.Axes[1].HasTitle = true;                //InsertChart.Axes[1].Scaling.SplitMinimum = 200;                InsertChart.Axes[1].Title.Caption = "数量";                InsertChart.Axes[1].MajorUnit = iUnit;  //刻度单位设置                InsertChart.Axes[1].Scaling.Minimum = 0;//最小刻度=0            }            //添加一个series系列            InsertChart.SeriesCollection.Add(0);                        //给定series系列的名字            InsertChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimSeriesNames, +(int)ChartSpecialDataSourcesEnum.chDataLiteral, strSeriesName);            //给定分类            strXdata = http://www.mamicode.com/strXdata.Substring(0, strXdata.Length - 1);            InsertChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimCategories, +(int)ChartSpecialDataSourcesEnum.chDataLiteral, strXdata);            //给定值            strYdata = http://www.mamicode.com/strYdata.Substring(0, strYdata.Length - 1);            InsertChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimValues, (int)ChartSpecialDataSourcesEnum.chDataLiteral, strYdata);            //添加标签            ChDataLabels dls = InsertChart.SeriesCollection[0].DataLabelsCollection.Add();            if (ChartType.ToString().IndexOf("ChartTypePie") != -1)            {                dls.Position = ChartDataLabelPositionEnum.chLabelPositionCenter;                dls.HasPercentage = false;                //dls.HasValue = http://www.mamicode.com/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 = 0;            int iImageWidth = 0;            //从Config文件取得设置            //iImageLength = int.Parse(WebConfigurationManager.AppSettings["ShowImageLength"]);            //iImageWidth = int.Parse(WebConfigurationManager.AppSettings["ShowImageWidth"]);            iImageLength = 450;            iImageWidth = 300;            string strImageName = ChartType.ToString() + "_" + Guid.NewGuid().ToString("N") + ".png";            laySpace.ExportPicture(strAbsolutePath + strImageName, "PNG", 450, 300);            //把图片添加到placeholder中，并在页面上显示            string strImageTag = "<IMG WIDTH=‘450‘ SRC=http://www.mamicode.com/‘" + strRelativePath + strImageName + "‘/>";                        this.PlaceHolder1.Controls.Add(new LiteralControl(strImageTag));           // return strImageTag;        }