使用Aspose.Cell控件实现Excel高难度报表的生成（二）

继续在上篇《使用Aspose.Cell控件实现Excel高难度报表的生成（一）》随笔基础上，研究探讨基于模板的Aspose.cell报表实现，其中提到了下面两种报表的界面，如下所示：

 或者这样的报表格式

  

首先来分析第一种报表，这个其实还是比较固定的二维表，我们只要绑定相关的信息即可，设计模板如下所示：

 
实际生成的报表如下所示：

 

实现的代码其实不复杂，如下所示：

         private DataTable GetTable(string sql)

        {
            Database db = DatabaseFactory.CreateDatabase();
            DbCommand command = db.GetSqlStringCommand(sql);
            return db.ExecuteDataSet(command).Tables[0];
        }
        private void btnAllMonthReport_Click(object sender, EventArgs e)
        {
            string sql = @"Select [LastCount] as LC, [LastMoney] as LM, [CurrentInCount] as CIC, [CurrentInMoney] as CIM, 
                           [CurrentOutCount] as COC, [CurrentOutMoney] as COM, [CurrentCount] as CC, [CurrentMoney] as CM, 
                           YearMonth,ItemName 
                           from TB_ReportMonthCheckOut ";
            DataTable dtBigType = GetTable(sql + " where ReportType =3");
            dtBigType.TableName = "BigType";
            if (dtBigType.Rows.Count == 0)
                return;

            DataTable dtItemType = GetTable(sql + " where ReportType =3");
            dtItemType.TableName = "ItemType";

            WorkbookDesigner designer = new WorkbookDesigner();
            string path = System.IO.Path.Combine(Application.StartupPath, "Report2-1.xls");
            designer.Open(path);
            designer.SetDataSource(dtBigType);
            designer.SetDataSource(dtItemType);
            designer.SetDataSource("YearMonth", dtBigType.Rows[0]["YearMonth"].ToString());
            designer.Process();

            //Save the excel file
            string fileToSave = FileDialogHelper.SaveExcel();
            if (File.Exists(fileToSave))
            {
                File.Delete(fileToSave);
            }
            designer.Save(fileToSave, FileFormatType.Excel2003);
            Process.Start(fileToSave);
        }

 
通过绑定两个不同的DataTable对象，然后引用他的属性即可，行会自动增加以适应实际的数据，并且对象变量&=$YearMonth也正常显示了，注意一点就是，所有使用变量的地方，都必须在一个独立的Excel单元格中，否则不能解析出来。另外上图的红色圆圈里面表示，汇总的函数，会自动根据行列的增加，自动调整引用，这真是我们需要的。 

 出库单的实现也差不多，实现代码如下所示：

            string TakeOutBill = Path.Combine(Application.StartupPath, "TakeOutBill.xls");
            WorkbookDesigner designer = new WorkbookDesigner();
            designer.Open(TakeOutBill);
            designer.SetDataSource("TakeOutDate", DateTime.Now.ToString("yyyy-MM-dd"));
            designer.SetDataSource("WareHouse", this.txtWareHouse.Text);
            designer.SetDataSource("Manager", this.txtCreator.Text);
            designer.SetDataSource("CostCenter", this.txtCostCenter.Text);
            designer.SetDataSource("Dept", this.txtDept.Text);

            string columns = "Start|int,ItemNo,ItemName,Specification,Unit,Price|decimal,Count|int";
            DataTable dt = DataTableHelper.CreateTable(columns);
            dt.TableName = "Detail";
            DataRow row = null;
            for (int i = 0; i < this.lvwDetail.Items.Count; i++)
            {
                PurchaseDetailInfo info = this.lvwDetail.Items[i].Tag as PurchaseDetailInfo;
                if (info != null)
                {
                    row = dt.NewRow();
                    row["Start"] = (i + 1);
                    row["ItemNo"] = info.ItemNo;
                    row["ItemName"] = info.ItemName;
                    row["Specification"] = info.Specification;
                    row["Unit"] = info.Unit;
                    row["Price"] = info.Price;
                    row["Count"] = Math.Abs(info.Quantity);
                    dt.Rows.Add(row);
                }
            }
            designer.SetDataSource(dt);
            designer.Process();
            string fileToSave = FileDialogHelper.SaveExcel();
            if (File.Exists(fileToSave))
            {
                File.Delete(fileToSave);
            }
            designer.Save(fileToSave, FileFormatType.Excel2003);
            Process.Start(fileToSave); 

以上报表，其实实现思路基本都差不多，相对来时，还是比较容易的，接下来设计一个比较困难的报表，需要结合Aspose.Cell一些对象来动态创建行列，并设置单元格的变量，然后填入相应的对象构造报表，另外还需要注意单元格格式的变化，如下所示的这种报表

 

这个报表初看没有太多特别的地方，难点就是他的第一行列也是变化的，因此不能通过普通的方式构建二维表，然后绑定数据源的方式，要先加载模板文件，然后操作Excel对象，把第一行的各列头部补齐，然后给下一行各单元格填入对象公式，如&=BigType.DeptName 和&=BigType.TotalMoney等内容，实现的代码如下所示：

            string sql = @"Select [YearMonth], [DeptName], [ItemType], [TotalMoney]
                           from TB_ReportDeptCost ";
            DataTable dt = GetTable(sql);
            if (dt.Rows.Count == 0)
                return;

            List<string> itemTypeList = new List<string>();
            List<string> partList = new List<string>();
            foreach (DataRow row in dt.Rows)
            {
                string itemType = row["ItemType"].ToString();
                if (!itemTypeList.Contains(itemType))
                {
                    itemTypeList.Add(itemType);
                }

                string part = row["DeptName"].ToString();
                if (!partList.Contains(part))
                {
                    partList.Add(part);
                }
            }

            string columnString = "DeptName";
            for (int i = 0; i < itemTypeList.Count; i++)
            {
                columnString += string.Format(",TotalMoney{0}|decimal", i);
            }
            DataTable dtBigType = DataTableHelper.CreateTable(columnString);
            dtBigType.TableName = "BigType";
            foreach (string part in partList)
            {
                DataRow row = dtBigType.NewRow();
                row["DeptName"] = part;
                for (int i = 0; i < itemTypeList.Count; i++)
                {
                    string itemType = itemTypeList[i];
                    DataRow[] rowSelect = dt.Select(string.Format("DeptName='{0}' AND ItemType='{1}'", part, itemType));
                    if (rowSelect.Length > 0)
                    {
                        row["TotalMoney" + i.ToString()] = rowSelect[0]["TotalMoney"];
                    }
                }
                dtBigType.Rows.Add(row);
            }

            WorkbookDesigner designer = new WorkbookDesigner();
            string path = System.IO.Path.Combine(Application.StartupPath, "Report1.xls");
            designer.Open(path);

            Aspose.Cells.Worksheet w = designer.Workbook.Worksheets[0];
            //先设置标题项目：如大修件，日常备件等
            int rowIndex = 2;//第三行为标题
            Aspose.Cells.Style style = w.Cells[rowIndex + 1, 1].Style;//继承数字栏目的样式
            style.Number = 4;//对应格式是#,##0.00
            Aspose.Cells.Style boldStyle = w.Cells[rowIndex, 0].Style;//继承开始栏目的样式
            for (int i = 0; i < itemTypeList.Count; i++)
            {
                w.Cells[rowIndex, i + 1].PutValue(itemTypeList[i]);
                w.Cells[rowIndex, i + 1].Style = boldStyle;
                w.Cells[rowIndex + 1, i + 1].PutValue("&=BigType.TotalMoney" + i.ToString());
                w.Cells[rowIndex + 1, i + 1].Style = style;
            }

            //添加合计行
            w.Cells[rowIndex, itemTypeList.Count + 1].PutValue("合计");
            w.Cells[rowIndex, itemTypeList.Count + 1].Style = boldStyle;
            w.Cells[rowIndex + 1, itemTypeList.Count + 1].PutValue(string.Format("&=&=SUM(B{{r}}:{0}{{r}})", GetChar(itemTypeList.Count + 1)));
            w.Cells[rowIndex + 1, itemTypeList.Count + 1].Style = style;

            designer.SetDataSource(dtBigType);
            designer.SetDataSource("YearMonth", dt.Rows[0]["YearMonth"].ToString());
            designer.Process();

            //Save the excel file
            string fileToSave = FileDialogHelper.SaveExcel();
            if (File.Exists(fileToSave))
            {
                File.Delete(fileToSave);
            }
            designer.Save(fileToSave, FileFormatType.Excel2003);
            Process.Start(fileToSave);