如何判断读文件是否已结尾

Question

StreamReader srRead = new StreamReader( ( System.IO.Stream )File.OpenRead("C:\\Temp\\Test.txt"), System.Text.Encoding.ASCII);
srRead.BaseStream.Seek(0, SeekOrigin.Begin);
srRead.BaseStream.Position = 0;
while (srRead.BaseStream.Position < srRead.BaseStream.Length)
{
//文件没结束
}

Answer 1

StreamReader sr=new StreamReader(Server.MapPath("./")+"aa.txt");
sr.BaseStream.Seek(0,SeekOrigin.Begin);
while (sr.Peek()>-1)
{
//没有到文件尾时
}
sr.Close();

Answer 2

同意楼上的，好像是help中的例子