【转】C# Excel 图表操作(二)--实例

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C# Excel 图表操作实例,生成Excel统计报表

System.DateTime StartTime=System.DateTime.Now;
string filename=Server.MapPath("tmp/sales.xls");
m_objExcel=new Excel.Application();
m_objExcel.UserControl=false;
m_objExcel.DisplayAlerts=false;
m_objExcel.Visible = false;

m_objExcel.Workbooks.Open( filename,miss,miss,miss,miss,miss,miss,miss,
miss,miss,miss,miss,miss,miss,miss);

m_objBooks = (Excel.Workbooks)m_objExcel.Workbooks;

m_objBook = m_objExcel.ActiveWorkbook;
sheet = (Excel.Worksheet)m_objBook.ActiveSheet;

//Weeks
System.Data.DataTable dts=BLL.OrderHeaderBLL.SalesReportByWeek();

int custcount=1;
DataRow[] drs=dts.Select("CustID='Allumette'");
for(int i=0;i<drs.Length;i++){
sheet.Cells[3,2+i]="week "+drs[i]["Weeks"].ToString();
}

for(int i=0;i<dts.Rows.Count;i++)
{
if(Convert.ToInt32(dts.Rows[i]["weeks"])!=1)
break;
sheet.Cells[4+i,1]=dts.Rows[i]["CustID"].ToString();
sheet.Cells[19+i,24]=dts.Rows[i]["CustID"].ToString();
custcount+=1;
}
int week=1;
int startrow=3;
double total=0.0;

for(int i=0;i<dts.Rows.Count;i++)
{
if(Convert.ToInt32(dts.Rows[i]["weeks"])!=week)
{
sheet.Cells[startrow+1,1+week]=total;
total=0;
week=week+1;
startrow=4;
}
else
startrow+=1;

total+=Convert.ToDouble(dts.Rows[i]["Price"]);
sheet.Cells[startrow,1+week]=dts.Rows[i]["Price"];

}
//Last
sheet.Cells[startrow+1,1+week]=total;
sheet.Cells[4+custcount,1]="Total";
week+=1;
// B4:AI4
//Stat.

sheet.Cells[3,week+1]="Total";
for(int i=0;i<custcount;i++)
{
Range rge=(Range)sheet.Cells[4+i,week+1];
//新加的单元格的颜色采用，之前的单元格的颜色
sheet.get_Range("B"+(4+i),GetColflg(week+1)+(4+i)).Interior.Color=((Range)sheet.Cells[4+i,2]).Interior.Color;

rge.Formula="=SUM(B"+(4+i)+":"+GetColflg(week)+(4+i)+")";
}

//获取图表对象
ChartObject chartObj=(ChartObject)sheet.ChartObjects(1);
Chart xlChart = chartObj.Chart;
xlChart.ChartType=Excel.XlChartType.xlLine;
//设置数据源
Range chartRange = sheet.get_Range("A4", GetColflg(week)+startrow.ToString());

xlChart.SetSourceData(chartRange,miss);

//Months
System.Data.DataTable dtMon=BLL.OrderHeaderBLL.SalesReportByMonth();
int month=1;
startrow=18;
total=0.0;
for(int i=0;i<dtMon.Rows.Count;i++)
{
if(Convert.ToInt32(dtMon.Rows[i]["Months"])!=month)
{
sheet.Cells[startrow+1,24+month]=total;
total=0;
month=month+1;
startrow=19;
}
else
startrow+=1;
total+=Convert.ToDouble(dtMon.Rows[i]["Price"]);
sheet.Cells[startrow,24+month]=dtMon.Rows[i]["Price"];
}

sheet.Cells[startrow+1,1+week]=total;
sheet.Cells[19+custcount,24]="Total";
sheet.Cells[18,37]="Total";//AK
for(int i=0;i<custcount;i++)
{
Range rge1=(Range)sheet.Cells[19+i,37];

rge1.Formula="=SUM(Y"+(19+i)+":AJ"+(19+i)+")";
}

ChartObject chartMon=(ChartObject)sheet.ChartObjects(2);
Chart MonChart = chartMon.Chart;
MonChart.ChartType=Excel.XlChartType.xlLine;
Range MonchartRange = sheet.get_Range("X19", "AJ"+startrow.ToString());
Excel.ChartGroup grp= (ChartGroup)MonChart.ChartGroups(1);

grp.VaryByCategories=true;
MonChart.SetSourceData(MonchartRange,miss);

string filepath=Server.MapPath("tmp/"+System.DateTime.Now.ToFileTime()+".xls");
m_objBook.SaveAs(filepath, miss, miss,
miss, miss, miss, Excel.XlSaveAsAccessMode.xlNoChange,miss,
miss, miss, miss, miss);

m_objBook.Close(false, miss, miss);
m_objExcel.Quit();
System.Runtime.InteropServices.Marshal.ReleaseComObject((object)m_objExcel);
System.Runtime.InteropServices.Marshal.ReleaseComObject((object)m_objBooks);
System.Runtime.InteropServices.Marshal.ReleaseComObject((object)m_objBook);
System.Runtime.InteropServices.Marshal.ReleaseComObject((object)sheet);

foreach(System.Diagnostics.Process theProc in System.Diagnostics.Process.GetProcessesByName("EXCEL"))
{
if( theProc.CloseMainWindow() == false )
{
// if(theProc.StartTime>StartTime)
theProc.Kill();
}
}