博客给出了将DataGrid数据导出到Excel的代码示例，包含设置响应头、创建写入器、绑定数据源等步骤，还提到若导出有乱码，可设置响应内容编码为UTF - 8。
Response.Clear();
Response.Buffer= true;
Response.ContentType = "application/vnd.ms-excel";
Response.Charset = "";
this.EnableViewState = false;
System.IO.StringWriter oStringWriter = new System.IO.StringWriter();
System.Web.UI.HtmlTextWriter oHtmlTextWriter = new System.Web.UI.HtmlTextWriter(oStringWriter);
DataGrid dg = new DataGrid();
dg.DataSource = GetDataSource(); //返回DataSet或DataTable
dg.DataBind();
dg.RenderControl(oHtmlTextWriter);
Response.Write(oStringWriter.ToString());
Response.End();
如果导出有乱码：Response.ContentEncoding = System.Text.Encoding.UTF8
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