還真沒做過winform的導出導入，今天上網百度了一下。結果---
所以還是我自己寫個吧。之前做過web的，半搬半做就OK。
1添加引用：Aspose.Cells.dll（我們就叫工具包吧，可以從網上下載。關於它的操作我在“Aspose.Cells操作說明 中文版 下載 Aspose C# 導出Excel 實例”一文中的說。這里你暫時也可不理會它。）
Aspose.Cells.dll 和中文說明 下載地址： http://item.taobao.com/auction/item_detail-0db2-f9b1d99e6cb27d78ae9e6373a1529633.htm
即使沒有安裝office也能用噢，這是一個好強的大工具。
2編寫Excel操作類
using System;
using System.Collections.Generic;
using System.Text;
using Aspose.Cells;
using System.Data;
public class AsposeExcel
{
private string outFileName = "";
private string fullFilename = "";
private Workbook book = null;
private Worksheet sheet = null;
public AsposeExcel(string outfilename, string tempfilename)//導出構造數
{
outFileName = outfilename;
book = new Workbook();
// book.Open(tempfilename);這里我們暫時不用模板
sheet = book.Worksheets[0];
}
public AsposeExcel(string fullfilename)//導入構造數
{
fullFilename = fullfilename;
// book = new Workbook();
//book.Open(tempfilename);
//sheet = book.Worksheets[0];
}
private void AddTitle(string title, int columnCount)
{
sheet.Cells.Merge(0, 0, 1, columnCount);
sheet.Cells.Merge(1, 0, 1, columnCount);
Cell cell1 = sheet.Cells[0, 0];
cell1.PutValue(title);
cell1.Style.HorizontalAlignment = TextAlignmentType.Center;
cell1.Style.Font.Name = "黑體";
cell1.Style.Font.Size = 14;
cell1.Style.Font.IsBold = true;
Cell cell2 = sheet.Cells[1, 0];
cell1.PutValue("查詢時間：" + DateTime.Now.ToLocalTime());
cell2.SetStyle(cell1.Style);
}
private void AddHeader(DataTable dt)
{
Cell cell = null;
for (int col = 0; col < dt.Columns.Count; col++)
{
cell = sheet.Cells[0, col];
cell.PutValue(dt.Columns[col].ColumnName);
cell.Style.Font.IsBold = true;
}
}
private void AddBody(DataTable dt)
{
for (int r = 0; r < dt.Rows.Count; r++)
{
for (int c = 0; c < dt.Columns.Count; c++)
{
sheet.Cells[r + 1, c].PutValue(dt.Rows[r][c].ToString());
}
}
}
//導出------------下一篇會用到這個方法
public Boolean DatatableToExcel(DataTable dt)
{
Boolean yn = false;
try
{
//sheet.Name = sheetName;
//AddTitle(title, dt.Columns.Count);
//AddHeader(dt);
AddBody(dt);
sheet.AutoFitColumns();
//sheet.AutoFitRows();
book.Save(outFileName);
yn = true;
return yn;
}
catch (Exception e)
{
return yn;
// throw e;
}
}
public DataTable ExcelToDatatalbe()//導入
{
Workbook book = new Workbook();
book.Open(fullFilename);
Worksheet sheet = book.Worksheets[0];
Cells cells = sheet.Cells;
//獲取excel中的數據保存到一個datatable中
DataTable dt_Import = cells.ExportDataTableAsString(0, 0, cells.MaxDataRow + 1, cells.MaxDataColumn + 1, false);
// dt_Import.
return dt_Import;
}
}
3導出按鈕事件中編寫導出數據方法：
private void bt_excel_out_Click(object sender, EventArgs e)
{
SaveFileDialog saveFileDialog1 = new SaveFileDialog();//如果你直接從對話框中拉出來，就不用new了噢。
//設置文件類型
saveFileDialog1.Filter = "導出Excel (*.xls)|*.xls|Word (*.doc)|*.doc";
saveFileDialog1.FilterIndex = 2;
saveFileDialog1.RestoreDirectory = true;
saveFileDialog1.CreatePrompt = true;
saveFileDialog1.Title = "導出文件保存路徑";
//saveFileDialog1.ShowDialog();
//string strName = saveFileDialog1.FileName;
//設置默認文件類型顯示順序
//saveFileDialog1.FilterIndex = 2;
//保存對話框是否記憶上次打開的目錄
saveFileDialog1.RestoreDirectory = true;
//點了保存按鈕進入
if (saveFileDialog1.ShowDialog() == DialogResult.OK)
{
//獲得文件路徑
string localFilePath = saveFileDialog1.FileName.ToString();
//獲取文件名，不帶路徑
string fileNameExt = localFilePath.Substring(localFilePath.LastIndexOf("\\") + 1);
//獲取文件路徑，不帶文件名
string FilePath = localFilePath.Substring(0, localFilePath.LastIndexOf("\\"));
//給文件名前加上時間
string newFileName = DateTime.Now.ToString("yyyyMMdd") + fileNameExt;
saveFileDialog1.FileName = FilePath + "\\" + newFileName;
System.IO.FileStream fs = (System.IO.FileStream)saveFileDialog1.OpenFile();//輸出文件
//下面是導出數據到doc 導出到excel請看下一篇（發現沒有AsposeExcel
類還沒有用到呢，那正是導出到excel要用的）
StreamWriter writer = new StreamWriter(fs);
writer.Write("tttt");//這里就是你要導出到word文檔的數據
writer.Flush();
writer.Close();
fs.Close();
}
}