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);