C#调用Excel,拷贝图表到其他Excel文档中

 Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Excel.Application();
            excel.Visible = blExcelVisible;//设置调用引用的 Excel文件是否可见
            excel.DisplayAlerts = false;

            Workbook workbook = excel.Workbooks.Open(strReportPath);

            Microsoft.Office.Interop.Excel.Worksheet worksheet = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[15];

            Workbook workbookDetail = excel.Workbooks.Open(strPath);

            Microsoft.Office.Interop.Excel.Worksheet WorksheetDetail = (Microsoft.Office.Interop.Excel.Worksheet)workbookDetail.Worksheets[15];
            //复制子文档的Worksheet到主文档去
            WorksheetDetail.Copy(worksheet);

            Microsoft.Office.Interop.Excel.Worksheet worksheetChart = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets["画图"];
　　　　　　　
　　　　　　　　
            double left = 125;
            double top = 593;
            for (int i = 1; i < 13; i++)
            {
                //找到需要移动的图表
                ChartObject chartObjectOld = (ChartObject)worksheetChart.ChartObjects("Char" + i);
                //left = chartObjectOld.Left;
                //top = chartObjectOld.Top;
                Chart chart = chartObjectOld.Chart;
                //移动Char图表
                chart.Location(XlChartLocation.xlLocationAsObject, strReportName);
                //新图表实例化
                Microsoft.Office.Interop.Excel.Worksheet worksheetChartSalt = (Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets[strReportName];
                ChartObject chartObject = (ChartObject)worksheetChartSalt.ChartObjects("Char" + i);
                //设置新图表位置
                chartObject.Left = left;
                chartObject.Top = top;
                if (i % 2 == 0)
                {
                    top = top + 175;
                    left = left - 299;
                }
                else
                {
                    left = left + 299;
                }
            }
            excel.DisplayAlerts = false; //删除图表
            ((Microsoft.Office.Interop.Excel.Worksheet)workbook.Worksheets["画图"]).Delete();
            excel.DisplayAlerts = true;//workbook.SaveAs(strSavePath, Type.Missing, "", "", Type.Missing, Type.Missing, XlSaveAsAccessMode.xlNoChange, 1, false, Type.Missing, Type.Missing, Type.Missing);
            workbook.Save();

            workbook.Close(false, System.Reflection.Missing.Value, Missing.Value);
            workbookDetail.Close(false, System.Reflection.Missing.Value, Missing.Value);
            excel.Workbooks.Close();
            excel.Quit();
            workbook = null;
            workbookDetail = null;
            worksheet = null;
            WorksheetDetail = null;
            worksheetChart = null;
            Kill(excel);
            GC.Collect();