public PlaceHolder PlaceHolder1;

/// </summary>
/// <param name="dbDtViewWrk">傳遞的數(shù)據(jù)</param>
/// <param name="strAbsolutePath">絕對路徑</param>
/// <param name="strRelativePath">相對路徑</param>
/// <param name="ChartType">要畫的圖格式（餅圖或者折線圖等）</param>
/// <param name="strTitle">統(tǒng)計(jì)名稱</param>
public void PaintToImage(DataTable dbDtViewWrk, string strAbsolutePath, string strRelativePath, ChartChartTypeEnum ChartType, string strTitle)
{
  string strSeriesName = "圖例";
  //存放項(xiàng)目
  string[] ItemsName = new string[dbDtViewWrk.Rows.Count];
  //存放數(shù)據(jù)
  string[] ItemsCount = new string[dbDtViewWrk.Rows.Count];
  //刻度單位
  int iUnit = 1;
  //最大值
  int iMaxValue = 0;
  string strXdata = String.Empty;
  string strYdata = String.Empty;
  
 //為數(shù)組賦值
 for (int i = 0; i < dbDtViewWrk.Rows.Count; i++)
 {
   ItemsName[i] = dbDtViewWrk.Rows[i][0].ToString(); //要統(tǒng)計(jì)的字段名字
   ItemsCount[i] = dbDtViewWrk.Rows[i][5].ToString();//要統(tǒng)計(jì)的字段數(shù)據(jù)
 }
  //為x軸指定特定字符串，以便顯示數(shù)據(jù)
  // string strXdata = String.Empty;
  foreach (string strData in ItemsName)
  {
 strXdata += strData + "\t";
  }
  // string strYdata = String.Empty;
  //為y軸指定特定的字符串，以便與x軸相對應(yīng)
  foreach (string strValue in ItemsCount)
  {
 strYdata += strValue + "\t";
 if (int.Parse(strValue) > iMaxValue)
 {
   iMaxValue = int.Parse(strValue);
 }
  }
  if (iMaxValue > 20)
  {
 iUnit = iMaxValue / 10;
  }
  //創(chuàng)建ChartSpace對象來放置圖表
  ChartSpace laySpace = new ChartSpaceClass();
  
  //在ChartSpace對象中添加圖表
  ChChart InsertChart = laySpace.Charts.Add(0);
  
  //底座顏色
  InsertChart.PlotArea.Interior.Color = "white";

  //指定繪制圖表的類型。類型可以通過OWC.ChartChartTypeEnum枚舉值得到
  InsertChart.Type = ChartType;//柱形圖


  //指定圖表是否需要圖例標(biāo)注
  InsertChart.HasLegend = true;
  InsertChart.BarWidth = 0;
  InsertChart.Legend.Position = ChartLegendPositionEnum.chLegendPositionBottom;

  InsertChart.HasTitle = true;//為圖表添加標(biāo)題
  InsertChart.Title.Caption = strTitle;//標(biāo)題名稱

  //為x,y軸添加圖示說明
  if (ChartType.ToString().IndexOf("ChartTypePie") == -1)
  {
 InsertChart.Axes[0].Font.Size = 11; //X軸

 InsertChart.Axes[1].Font.Size = 11; //Y軸
 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 = "數(shù)量";
 InsertChart.Axes[1].MajorUnit = iUnit; //刻度單位設(shè)置
 InsertChart.Axes[1].Scaling.Minimum = 0;//最小刻度=0
  }

  //添加一個(gè)series系列
  InsertChart.SeriesCollection.Add(0);
  
  //給定series系列的名字
  InsertChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimSeriesNames, +(int)ChartSpecialDataSourcesEnum.chDataLiteral, strSeriesName);

  //給定分類
  strXdata = strXdata.Substring(0, strXdata.Length - 1);
  InsertChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimCategories, +(int)ChartSpecialDataSourcesEnum.chDataLiteral, strXdata);

  //給定值
  strYdata = strYdata.Substring(0, strYdata.Length - 1);
  InsertChart.SeriesCollection[0].SetData(ChartDimensionsEnum.chDimValues, (int)ChartSpecialDataSourcesEnum.chDataLiteral, strYdata);

  //添加標(biāo)簽
  ChDataLabels dls = InsertChart.SeriesCollection[0].DataLabelsCollection.Add();
  if (ChartType.ToString().IndexOf("ChartTypePie") != -1)
  {
 dls.Position = ChartDataLabelPositionEnum.chLabelPositionCenter;
 dls.HasPercentage = false;
 //dls.HasValue = false;
 dls.HasCategoryName = false;
 //指定圖表是否需要圖例標(biāo)注
 InsertChart.HasLegend = true;
 InsertChart.Legend.Position = ChartLegendPositionEnum.chLegendPositionBottom;
  }

  //輸出文件.
  int iImageLength = 0;
  int iImageWidth = 0;

  //從Config文件取得設(shè)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);

  //把圖片添加到placeholder中，并在頁面上顯示
  string strImageTag = "<IMG WIDTH='450' SRC='" + strRelativePath + strImageName + "'/>";
  
  this.PlaceHolder1.Controls.Add(new LiteralControl(strImageTag));
  // return strImageTag;
}