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使用Aspose.Cell控件实现Excel高难度报表的生成（二）

news 来源：原创 2024/5/3 10:56:42

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);

转载于:https://www.cnblogs.com/wuhuacong/archive/2011/02/23/1962347.html