.net关于企业Excel报表的生成

1.思路:用Excel模版+Data = .net关于企业Excel报表的生成

2.模板样式，表头字段用{|field|},表字段用{[field]}

if (row == 0)

{

for (int header = 0; header < headlist.Count; header++)

{

mycell = new CellInfo();

mycell = (CellInfo)headlist[header];

if (mycell.cellText == dt.Columns[col].Caption)

{

workSheet.UsedRange.Cells[mycell.cellRow, mycell.cellCol] = dt.Rows[row][col].ToString();

}

}

}

#endregion

}

#region 处理Deatil

oRange = (Excel.Range)workSheet.Rows[k + row, missing];

oRange.Copy(missing);

oRange.Insert(Excel.XlInsertShiftDirection.xlShiftDown);

for (int detail = 0; detail < detaillist.Count; detail++)

{

mycell = new CellInfo();

mycell = (CellInfo)detaillist[detail];

//if (mycell.cellText == dt.Columns[col].Caption)

//{

string tt = dt.Rows[row][mycell.cellText].ToString();

workSheet.UsedRange.Cells[k + row + 1, mycell.cellCol] = dt.Rows[row][mycell.cellText].ToString();

//}

}

#endregion

}

//移除k行

oRange = (Excel.Range)workSheet.Rows[k, missing];

oRange.Delete(Excel.XlDeleteShiftDirection.xlShiftUp);

oRange = (Excel.Range)workSheet.Rows[k + rowCount, missing];

oRange.Delete(Excel.XlDeleteShiftDirection.xlShiftUp);

#region grouplist

/*

string groupheader = "";

int grouprow = -1;

int sumindex = 0;

int groupcount = 0;

int[] fields;

Excel.Range cell1;

Excel.Range cell2;

Excel.Range sortcell;

string subtotalloacaltion = "";

if (grouplist.Count > 0)

{

//get grouprow;

for (i = 0; i < grouplist.Count; i++)

{

mycell = new CellInfo();

mycell = (CellInfo)grouplist[i];

if (mycell.cellText.IndexOf("*") > -1)

{

grouprow = mycell.cellCol;

subtotalloacaltion = mycell.cellText.Replace("{(", "").Replace(")}", "").Replace("*", "").Trim().ToLower();

break;

}

}

if (grouprow > 0)

{

fields = new int[] { grouprow + 1, grouprow + 2 };

cell1 = (Excel.Range)worksheet.Cells[k, 1];

cell2 = (Excel.Range)worksheet.Cells[j, worksheet.UsedRange.Columns.Count];

sortcell = (Excel.Range)worksheet.Cells[k, grouprow];

oRange = (Excel.Range)worksheet.UsedRange.get_Range((Excel.Range)cell1, (Excel.Range)cell2);

oRange.Sort(sortcell, Excel.XlSortOrder.xlAscending, refmissing, refmissing, Excel.XlSortOrder.xlAscending, refmissing,

Excel.XlSortOrder.xlAscending, Excel.XlYesNoGuess.xlNo, refmissing, refmissing, Excel.XlSortOrientation.xlSortColumns, Excel.XlSortMethod.xlStroke);

cell1 = (Excel.Range)worksheet.Cells[k - 1, 1];

cell2 = (Excel.Range)worksheet.Cells[j, worksheet.UsedRange.Columns.Count];

oRange = (Excel.Range)worksheet.UsedRange.get_Range((Excel.Range)cell1, (Excel.Range)cell2);

if (subtotalloacaltion != "1")

oRange.Subtotal(grouprow, Excel.XlConsolidationFunction.xlCount, refmissing, refmissing, refmissing, Excel.XlSummaryRow.xlSummaryAbove);

else

oRange.Subtotal(grouprow, Excel.XlConsolidationFunction.xlCount, refmissing, refmissing, refmissing, Excel.XlSummaryRow.xlSummaryBelow);

//getsubtotal array

for (sumindex = k; sumindex <= worksheet.UsedRange.Rows.Count; sumindex++)

{

if (((Excel.Range)worksheet.Cells[sumindex, grouprow]).Text.ToString().IndexOf(" 計數") > -1)

{

mycell = new CellInfo();

mycell.cellCol = grouprow;

mycell.cellRow = sumindex;

subtotallist.Add(mycell);

}

}

CellInfo groupcellcurrent;

CellInfo groupcelllast;

CellInfo grouplistindex;

string fomu;

for (sumindex = 0; sumindex < grouplist.Count; sumindex++)

{

grouplistindex = new CellInfo();

grouplistindex = (CellInfo)grouplist[sumindex];

if (grouplistindex.cellText.IndexOf("*") < 0)

{

for (i = 0; i < subtotallist.Count; i++)

{

if (i == 0)

{

mycell = new CellInfo();

mycell = (CellInfo)subtotallist[i];

groupcelllast = new CellInfo();

groupcelllast.cellRow = k;

groupcelllast.cellCol = grouplistindex.cellCol;

groupcellcurrent = new CellInfo();

groupcellcurrent.cellRow = mycell.cellRow - 1;

groupcellcurrent.cellCol = grouplistindex.cellCol;

}

else

{

mycell = new CellInfo();

mycell = (CellInfo)subtotallist[i - 1];

groupcelllast = new CellInfo();

groupcelllast.cellRow = mycell.cellRow;

groupcelllast.cellCol = grouplistindex.cellCol;

mycell = new CellInfo();

mycell = (CellInfo)subtotallist[i];

groupcellcurrent = new CellInfo();

groupcellcurrent.cellRow = mycell.cellRow - 1;

groupcellcurrent.cellCol = grouplistindex.cellCol;

}

oRange = (Excel.Range)worksheet.Cells[groupcellcurrent.cellRow + 1, groupcellcurrent.cellCol];

fomu = "=" + grouplistindex.cellText.Replace("{(", "").Replace(")}", "") + "(R" + groupcelllast.cellRow.ToString() + "C" + groupcelllast.cellCol.ToString() +

":" + "R" + groupcellcurrent.cellRow.ToString() + "C" + groupcellcurrent.cellCol.ToString() + ")";

try

{

oRange.FormulaR1C1 = fomu;

}

catch (System.Exception exfomu)

{

oRange.Value2 = "Error" + exfomu.ToString();

}

}

}

else // get the first groupcout list {(*)}

{

for (i = 0; i < subtotallist.Count; i++)

{

mycell = new CellInfo();

mycell = (CellInfo)subtotallist[i];

oRange = (Excel.Range)worksheet.Cells[mycell.cellRow, mycell.cellCol + 1];

mycell.cellText = ((Excel.Range)worksheet.UsedRange.Cells[mycell.cellRow, mycell.cellCol]).Text.ToString().Replace(" 計數", "");

oRange.Value = mycell.cellText;

// oRange = worksheet.UsedRange.get_End(Excel.XlDirection.xlToLeft);

// oRange.Value = mycell.cellCol.ToString();

//fomu = "=" + "R" + mycell.cellRow.ToString() + "C" + mycell.cellCol.ToString() ;

// oRange.FormulaR1C1 = fomu;

}

}

}

}

}

string[] graphpara = graphstring.Split("|".ToCharArray());

*/

//draw graphic

//1 . copy all the subtotal informat to worksheet2

//for (i = 0; i < subtotallist.Count; i++)

//{

// mycell = new CellInfo();

// mycell = (CellInfo)subtotallist[i];

// cell1 = (Excel.Range)worksheet.Cells[mycell.cellRow, 1];

// cell2 = (Excel.Range)worksheet.Cells[mycell.cellRow, worksheet.UsedRange.Columns.Count];

// oRange = (Excel.Range)worksheet.UsedRange.get_Range((Excel.Range)cell1, (Excel.Range)cell2);

// oRange.Copy(refmissing);

// cell1 = (Excel.Range)worksheet2.Cells[i, 1];

// cell1.PasteSpecial(Excel.XlPasteType.xlPasteAll, Excel.XlPasteSpecialOperation.xlPasteSpecialOperationNone, refmissing, refmissing);

//}

// //end copy

//Excel.Range oRange2;

//oRange2 = worksheet.UsedRange;

//if (graphpara.Length > 0)

//{

// cell1 = (Excel.Range)worksheet.Cells[k, 1];

// cell2 = (Excel.Range)worksheet.Cells[j, worksheet.UsedRange.Columns.Count];

// oRange = (Excel.Range)worksheet.UsedRange.get_Range((Excel.Range)cell1, (Excel.Range)cell2);

// if (graphpara[0].ToLower().Trim() != "b")

// oRange2 = oRange;

//}

////xlChart.ChartWizard(cellRange.CurrentRegion,Excel.XlChartType.xl3DColumn, Type.Missing,

////Excel.XlRowCol.xlColumns,1, 0, true ,"访问量比较(dahuzizyd.cnblogs.com)", "月份", "访问量",

////"");

//if (graphpara.Length == 8)

//{

// Excel.XlChartType charttype = getchartype(graphpara[1]);

// Excel.Chart xlChart = (Excel.Chart)Myexcel.Charts.Add(refmissing, refmissing, refmissing, refmissing);

// //xlChartl.ChartWizard(oRange2, Excel.XlChartType.xl3DColumn, refmissing, refmissing, refmissing, refmissing,refmissing, refmissing, refmissing, refmissing, refmissing);

// xlChart.ChartWizard(oRange2, charttype, Type.Missing, Excel.XlRowCol.xlColumns, Convert.ToInt32(graphpara[2]),

// Convert.ToInt32(graphpara[3]), true, graphpara[4], graphpara[5], graphpara[6], graphpara[7]);

//}

////设置统计图Sheet的名称：

////xlChart.Name = "统计";

////现在的统计图只有一个组，他们会显示成一样的颜色，我们来让12个Bar都显示不同的颜色：

////Excel.ChartGroup grp = (Excel.ChartGroup)xlChart.ChartGroups(1);

////grp.GapWidth = 20;

////grp.VaryByCategories = true;

////现在Chart的条目的显示形状是Box，我们让它们变成圆柱形，并给它们显示加上数据标签：

////Excel.Series s = (Excel.Series)grp.SeriesCollection(1);

////s.BarShape = XlBarShape.xlCylinder;

////s.HasDataLabels = true;

////下面再来设置统计图的标题和图例的显示：

////xlChart.Legend.Position = XlLegendPosition.xlLegendPositionTop;

////xlChart.ChartTitle.Font.Size = 24;

////xlChart.ChartTitle.Shadow = true;

////xlChart.ChartTitle.Border.LineStyle = Excel.XlLineStyle.xlContinuous;

//最后设置两个轴的属性，Excel.XlAxisType.xlValue对应的是Y轴，Excel.XlAxisType.xlCategory对应的是X轴：

//Excel.Axis valueAxis = (Excel.Axis)xlChart.Axes(Excel.XlAxisType.xlValue, XlAxisGroup.xlPrimary);

//valueAxis.AxisTitle.Orientation = -90;

//Excel.Axis categoryAxis = (Excel.Axis)xlChart.Axes(Excel.XlAxisType.xlCategory, XlAxisGroup.xlPrimary);

//categoryAxis.AxisTitle.Font.Name = "MS UI Gothic";

// Excel.Chart thischart;

// Excel.Range chartrange = (Excel.Range)worksheet.Cells[2,3];

#endregion

#region file save

workBook.SaveAs(outputFilePath, missing, missing, missing, missing, missing, Excel.XlSaveAsAccessMode.xlExclusive, missing, missing, missing, missing);

workBook.Close(null, null, null);

app.Workbooks.Close();

app.Application.Quit();

app.Quit();

System.Runtime.InteropServices.Marshal.ReleaseComObject(workSheet);

System.Runtime.InteropServices.Marshal.ReleaseComObject(workBook);

System.Runtime.InteropServices.Marshal.ReleaseComObject(app);

workSheet = null;

workBook = null;

app = null;

GC.Collect();

#endregion

}

catch (System.Exception ex)

{

throw ex;

}

finally

{

#region 关闭在导出报表期间创建的Excel进程

Process[] myProcesses;

DateTime startTime;

myProcesses = Process.GetProcessesByName("Excel");

//得不到Excel进程ID，暂时只能判断进程启动时间

foreach (Process myProcess in myProcesses)

{

startTime = myProcess.StartTime;

if (startTime > beforeTime && startTime < afterTime)

{

myProcess.Kill();

}

}

#endregion

}

}
4.导出结果