DataGrid输出Excel并进行格式化处理_datatable 导出excel格式化数据-优快云博客

本文链接：https://blog.youkuaiyun.com/Jon_Pilot/article/details/1214092

本文介绍了一个使用ASP.NET进行数据展示并导出到Excel文件的例子。通过创建一个包含身份证号码、图书单价等字段的数据表，并将其绑定到DataGrid中显示。此外，还提供了一个按钮点击事件来实现将DataGrid中的数据导出到Excel的功能。

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private void Page_Load(object sender, System.EventArgs e)
{
    DataGrid1.DataSource = CreateDataSource();
    DataGrid1.DataBind();
}

ICollection CreateDataSource()
{
    DataTable dt = new DataTable();
    DataRow dr;
    dt.Columns.Add(new DataColumn("身份证号码", typeof(string)));
    dt.Columns.Add(new DataColumn("图书单价", typeof(decimal)));
    dt.Columns.Add(new DataColumn("购买数量", typeof(Int32)));
    dt.Columns.Add(new DataColumn("总价格", typeof(decimal)));

    for(int i = 0; i < 30; i++)
    {
        dr = dt.NewRow();
        dr[0] = "123456789123456789";
        dr[1] = 100 * i / 3.0;
        dr[2] = i + 5;
        dr[3] = (decimal)dr[1] * (int)dr[2];

        dt.Rows.Add(dr);
    }

    DataView dv = new DataView(dt);

    return dv;

}

private void Button1_Click(object sender, EventArgs e)
{
    Response.Clear();
    Response.Buffer = true;
    Response.Charset = "GB2312";
    Response.AppendHeader("Content-Disposition", "attachment;filename=FileName.xls");
    //设置输出流为简体中文
    Response.ContentEncoding = System.Text.Encoding.GetEncoding("GB2312");
    //设置输出文件类型为Excel文件
    Response.ContentType = "application/ms-excel";
    EnableViewState = true;
    System.Globalization.CultureInfo myCItrad = new System.Globalization.CultureInfo("ZH-CN",true);
    System.IO.StringWriter oStringWriter = new System.IO.StringWriter(myCItrad);
    System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
    this.DataGrid1.RenderControl(oHtmlTextWriter);
    Response.Write(oStringWriter.ToString());
    Response.End();
}

private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)
{
    if(e.Item.ItemType == ListItemType.Item || e.Item.ItemType == ListItemType.AlternatingItem)
    {
        e.Item.Cells[0].Attributes.Add("style","vnd.ms-excel.numberformat:@");
        e.Item.Cells[3].Attributes.Add("style","vnd.ms-excel.numberformat:￥#,###.00");
    }
}