GridView数据导入Excel/Excel数据读入GridView

 1     protected void Button1_Click(object sender, EventArgs e)
 2     {
 3         Export("application/ms-excel", "学生成绩报表.xls");
 4     }
 5 
 6     private void Export(string FileType, string FileName)
 7     {
 8         Response.Charset = "GB2312";
 9         Response.ContentEncoding = System.Text.Encoding.UTF7;
10         Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());
11         Response.ContentType = FileType;
12         this.EnableViewState = false;
13         StringWriter tw = new StringWriter();
14         HtmlTextWriter hw = new HtmlTextWriter(tw);
15         GridView1.RenderControl(hw);
16         Response.Write(tw.ToString());
17         Response.End();
18     }

19     //如果没有下面方法会报错类型“GridView”的控件“GridView1”必须放在具有 runat=server 的窗体标记内
20     public override void VerifyRenderingInServerForm(Control control)
21     {
22     }

 1     //读取Excel数据的代码：这个很简单的
 2     private DataSet CreateDataSource()
 3     {
 4         string strCon;
 5         strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";
 6         OleDbConnection olecon = new OleDbConnection(strCon);
 7         OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);
 8         DataSet myds = new DataSet();
 9         myda.Fill(myds);
10         return myds;
11     }
12     protected void Button1_Click(object sender, EventArgs e)
13     {
14         GridView1.DataSource = CreateDataSource();
15         GridView1.DataBind();
16     }