GridView数据导入Excel/Excel数据读入GridView

转自清清月儿gridview72绝技

导出excel

protected void Button1_Click(object sender, EventArgs e)

{

Export("application/ms-excel", "学生成绩报表.xls");

}
private void Export(string FileType, string FileName)

{

Response.Charset = "GB2312";

Response.ContentEncoding = System.Text.Encoding.UTF7;

Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(FileName, Encoding.UTF8).ToString());

Response.ContentType = FileType;

this.EnableViewState = false;

StringWriter tw = new StringWriter();

HtmlTextWriter hw = new HtmlTextWriter(tw);

GridView1.RenderControl(hw);

Response.Write(tw.ToString());

Response.End();

}

//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

public override void VerifyRenderingInServerForm(Control control)

{

}

还有由于是文件操作所以要引入名称空间IO和Text

excel导入gridview

private DataSet CreateDataSource()

{

string strCon;

strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + Server.MapPath("excel.xls") + "; Extended Properties=Excel 8.0;";

OleDbConnection olecon = new OleDbConnection(strCon);

OleDbDataAdapter myda = new OleDbDataAdapter("SELECT * FROM [Sheet1$]", strCon);

DataSet myds = new DataSet();

myda.Fill(myds);

return myds;

}

protected void Button1_Click(object sender, EventArgs e)

{

GridView1.DataSource = CreateDataSource();

GridView1.DataBind();

}