[导入]不经保存，直接读取上传文件的内容

代码很简单，就不罗唆了。

C#：

<%@ Page Language="C#" AutoEventWireup="true" %>



protected void btnUpload_Click( object sender, EventArgs e )
{
if (FileUpload1.PostedFile.InputStream.Length < 1)
{
Msg.Text = "请选择文件。";
return;
}
string FileName = FileUpload1.FileName;
if (FileName.ToLower().IndexOf(".txt") == -1)
{
Msg.Text = "请选择文本文件。";
return;
}

int FileLen = FileUpload1.PostedFile.ContentLength;
byte[] input = new byte[FileLen];
System.IO.Stream UpLoadStream = FileUpload1.PostedFile.InputStream;
UpLoadStream.Read(input, 0, FileLen);
UpLoadStream.Position = 0;
System.IO.StreamReader sr = new System.IO.StreamReader(UpLoadStream, System.Text.Encoding.Default);
Msg.Text = "您上传的文件内容是：

" + sr.ReadToEnd();
sr.Close();
UpLoadStream.Close();
UpLoadStream = null;
sr = null;
}

不经保存，直接读取上传文件的内容