WinForm使用Aspose.cells利用模板导出Excel

Aspose是一个处理文件格式的组件,可对Words、Excel等工具进行操作,实现代码数据导出。在这里我介绍以及提供Aspose对Excel(Aspose.Cells)导出的工具类。

1.首先介绍Aspose.Cells的基础知识：

A.Excel模板变量的定义(详细可在官网查看详细:http://www.aspose.com/docs/display/cellsnet/Using+Smart+Markers#UsingSmartMarkers-skip):

(1)普通变量格式:&=$name

(2)datatable导出格式(会自动添加多行):&=dtname.columnnae.(注:在column可添加别的标识,numeric:转化为数字,如果你在Excel中写好了公式计算,最好加上否则结果会计算错,noadd:导出的时候不添加新行,只是把数据放到Excel表格中,也就是说样式都是模板的样式,未添加时,样式则为Excel普通样式,skip:n 跳过n行,一般可以与分组结合起来使用,标识不同的分组,group:normal,分组,有多种样式,normal为普通样式,merge,repeat为另外两种样式,还有其他ascending,horizontal,shift ,copystyle等，由于没用到所以不是很了解,不满足你的需求，可以到官网查看)

(3)等

(4)这里是模板的例子:



B.直接上工具类代码(代码以及插件dll可在这里Aspose.Cells工具类下载,密码:zre7):

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data;
using System.Windows.Forms;
using Aspose.Cells;

namespace TestNamespace
{
public class TemplateExcelHelper
{
#region 根据Excel模板导出 string DataTable Dictionary<String,Object>
/*
* templatePath 模板路径(一般在bin/debug目录下)
* dtSource 数据源(datatable数据源,表名必须与模板中的对象对应)
* dictSource 附加信息
*/
public static void TemplateExportExcel(string templatePath, DataTable dtSource, Dictionary<String,Object> dictSource)
{
SaveFileDialog sf = new SaveFileDialog();
sf.Filter = "Excel files (*.xls)|*.xls";
string path = System.IO.Path.Combine(Application.StartupPath, templatePath);
WorkbookDesigner designer = new WorkbookDesigner();
try
{
designer.Open(path);
}
catch (Exception ex)
{
if (sf.ShowDialog() == DialogResult.OK)
{
try
{
ExcelHelper.ExportExcel(dtSource, sf.FileName);//找不到制定模板时,按标准导出导出模板
MessageBox.Show("保存成功", "提示");
}
catch (Exception ex2)
{
MessageBox.Show(ex2.Message, "异常");
}
}
return;
}
//设置数据源
designer.SetDataSource(dtSource);
if (dictSource != null && dictSource.Count > 0) {
foreach (var keyValuePair in dictSource) {
designer.SetDataSource(keyValuePair.Key, keyValuePair.Value);
}
}
designer.Process();
if (sf.ShowDialog() == DialogResult.OK)
{
try
{
string saveFile = System.IO.Path.Combine(Application.StartupPath, sf.FileName);
designer.Save(saveFile);
MessageBox.Show("导出成功", "提示");
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "异常");
}
}
}
#endregion

#region 根据Excel模板
bd7f
导出 string DataGridView Dictionary<String,Object>
/*
* templatePath 模板路径(一般在bin/debug目录下)
* datagridView 数据源(Datatable或DatagridView数据源信息)
* dictSource 附加信息
*/
public static void TemplateExportExcel(string templatePath, DataGridView datagridView,string tablename, Dictionary<String, Object> dictSource)

{
TemplateExportExcel(templatePath, GetDgvToTable(datagridView,tablename), dictSource);
}
#endregion

#region datagridview数据源转化为datatable
public static DataTable GetDgvToTable(DataGridView dgv,string tablename)
{
DataTable dt = new DataTable();
for (int count = 0; count < dgv.Columns.Count; count++)
{
DataColumn dc = new DataColumn(dgv.Columns[count].Name.ToString());
dt.Columns.Add(dc);
}
for (int count = 0; count < dgv.Rows.Count; count++)
{
DataRow dr = dt.NewRow();
for (int countsub = 0; countsub < dgv.Columns.Count; countsub++)
{
dr[countsub] = Convert.ToString(dgv.Rows[count].Cells[countsub].Value);
}
dt.Rows.Add(dr);
}
dt.TableName = tablename;
return dt;
}
#endregion

/// <summary>
/// 导出Excel,拓展
/// </summary>
/// <param name="templatePath">模板路径</param>
/// <param name="ds">数据集</param>
/// <param name="dictSource">附加信息数据源,添加fileNames导出多个文件</param>
/// <param name="isDivsion">是否将附加信息分割,true:导出多个Excel,false:只导出一个Excel</param>
#region
public static void TemplateExportExcel(string templatePath, DataSet ds,Dictionary<String, Object> dictSource,bool isDivsion,string tableName)

{
SaveFileDialog sf = new SaveFileDialog();
sf.Filter = "Excel files (*.xls)|*.xls";
string path = System.IO.Path.Combine(Application.StartupPath, templatePath);
WorkbookDesigner designer = new WorkbookDesigner();

//获取保存多个文件时的后缀
string[] fileNameSuffix = null;
if (isDivsion)
{
if (dictSource.ContainsKey("fileNames"))//存在文件名属性集合时
{
fileNameSuffix = (string[])dictSource["fileNames"];
}
else
{ //不存在时,自定义文件名
fileNameSuffix = new string[ds.Tables.Count];
for (int i = 0; i < fileNameSuffix.Length; i++)
{
fileNameSuffix[i] = "_" + i;
}
}
}
try
{
designer.Open(path);
}
catch (Exception ex)
{
if (sf.ShowDialog() == DialogResult.OK)
{
try
{
///导出一个Excel,默认为第一个表格
if (!isDivsion)
{
ExcelHelper.ExportExcel(ds.Tables[0], sf.FileName);
MessageBox.Show("导出成功", "提示");
}
else {
for (int i = 0; i < ds.Tables.Count;i++ )
{
ExcelHelper.ExportExcel(ds.Tables[i], sf.FileName.Insert(sf.FileName.LastIndexOf("."), fileNameSuffix[i]));
}
MessageBox.Show("导出成功","提示");
}
}
catch (Exception ex2)
{
MessageBox.Show(ex2.Message, "异常");
}
}
return;
}
if (sf.ShowDialog() == DialogResult.OK)
{
try
{
if (!isDivsion)
{
if (ds != null)
{
designer.SetDataSource(ds);
}
designer.Process();
string saveFile = System.IO.Path.Combine(Application.StartupPath, sf.FileName);
designer.Save(saveFile);
MessageBox.Show("导出成功", "提示");
}
else {
if (ds != null)
{
for (int i = 0; i < ds.Tables.Count; i++)
{
DataTable table = ds.Tables[i].Copy();
table.TableName = tableName;
string saveFile = System.IO.Path.Combine(Application.StartupPath,sf.FileName.Insert(sf.FileName.LastIndexOf("."),fileNameSuffix[i]));

TempleExportExcelNormal(templatePath, table, dictSource, saveFile);
}
}
MessageBox.Show("导出成功", "提示");
}
}
catch (Exception ex)
{
MessageBox.Show(ex.Message, "异常");
}
}
}
#endregion
}
}