http://www.cnblogs.com/hfzsjz/archive/2010/12/31/1922901.html
http://hi.baidu.com/ctguyg/item/ebc857e90e436ae1fb42ba01
1 <form action="" method="post" runat ="server">
2 <div>
3 <span>请选择文件：</span><asp:FileUpload ID="FileUpload1" runat="server" />
4 <asp:Button ID="btnExport" runat="server" Text="导入" onclick="btnExport_Click" />
5 </div>
6 <div>
7 <asp:GridView ID="GridView1" runat="server">
8 </asp:GridView>
9 </div>
10 </form>
1 protected void btnExport_Click(object sender, EventArgs e)
2 {
3 try
4 {
5 if (this.FileUpload1.HasFile)
6 {
7 DataTable inputdt = new DataTable();
8 int len = this.FileUpload1.FileName.ToString().Trim().Length;
9 string path = "~/temp/upfile/" + this.FileUpload1.FileName.ToString().Trim();
10 path = Server.MapPath(path);
11 this.FileUpload1.SaveAs(path); //上传文件
12 inputdt = JDBMS.DBUtility.MDBHelper.InputExcel(path, this.FileUpload1.FileName.ToString().Trim().Substring(0, len - 4));
13 if (Session["inputdt"] != null)
14 Session.Remove("inputdt");
15 Session.Add("inputdt", inputdt);
16 if (inputdt.Rows.Count > 0)
17 {
18 this.GridView1.DataSource = inputdt;
19 this.GridView1.DataBind();
20 }
21 }
22 else
23 {
24 throw new Exception("请选择导入表的路径");
25 }
26 }
27 catch (Exception ex)
28 {
29 Response.Write("<script language='javascript'>alert('" + ex.Message + "');</script>");
30 }
31 }
1 /// <summary>
2 /// 导入数据到数据集中
3 /// </summary>
4 /// <param name="Path"></param>
5 /// <param name="TableName"></param>
6 /// <param name="tablename2">如果这个有就以他为表名，没有的话就以TableName</param>
7 /// <returns></returns>
8 public static DataTable InputExcel(string Path, string TableName)
9 {
10 try
11 {
12 string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Path + ";" + "Extended Properties=Excel 8.0;";
13 OleDbConnection conn = new OleDbConnection(strConn);
14 conn.Open();
15 string strExcel = "";
16 OleDbDataAdapter myCommand = null;
17 strExcel = "select * from [" + TableName + "$]";
18 myCommand = new OleDbDataAdapter(strExcel, strConn);
19 DataTable dt = new DataTable();
20 myCommand.Fill(dt);
21 conn.Close();
22 return dt;
23 }
24 catch (Exception ex)
25 {
26 throw new Exception(ex.Message);
27 }
28 }