原本在CS项目中用的好好的在BS项目中既然提示我导出出现无法访问已关闭的流的解决方法 比较郁闷经过研究 终于解决了先将方法发出来 让遇到此问题的筒子们以作参考
//新建类 重写Npoi流方法
public class NpoiMemoryStream : MemoryStream
{
public NpoiMemoryStream()
{
AllowClose = true;
} public bool AllowClose { get; set; } public override void Close()
{
if (AllowClose)
base.Close();
}
}
导出Excel方法
//导出Excel文件的方法
var ms = new NpoiMemoryStream();
ms.AllowClose = false;
workbook.Write(ms);
ms.Flush();
ms.Seek(, SeekOrigin.Begin);
ms.AllowClose = true; HttpContext curContext = HttpContext.Current;
curContext.Response.ContentType = "application/vnd.ms-excel";
curContext.Response.ContentEncoding = Encoding.UTF8;
curContext.Response.Charset = "";
curContext.Response.AppendHeader("Content-Disposition", "attachment;filename=" + HttpUtility.UrlEncode(fileName, Encoding.UTF8));
long fileSize = ms.Length;
curContext.Response.AddHeader("Content-Length", fileSize.ToString());
curContext.Response.BinaryWrite(ms.GetBuffer());
curContext.Response.End();
如果您觉得此方法解决了您的疑惑请为点个推荐,让此贴搜索命中率高一些让遇到此问题的筒子们能尽快找到!Thanks