Question

c#怎么判断上传文件的大小

Answer 1

try

public static long GetRemoteHTTPFileSize(string sURL)
{
long size = 0L;
try
{
System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)System.Net.WebRequest.Create(sURL);
request.Method = "HEAD";

System.Net.HttpWebResponse response = (System.Net.HttpWebResponse)request.GetResponse();

size = response.ContentLength;
//size = System.Convert.ToInt64(response.Headers["Content-Length"]);
response.Close();
}
catch
{
size = 0L;
}

return size;
}