一个文件上传的类

return path.Substring(pos+1);

}

public string Upload()

{

if(PostedFile!=null)

{

try{

string fileName=PathToName(PostedFile.FileName);

if(!fileName.EndsWith(Extension)) return "You must select "+Extension+" file!";

if(PostedFile.ContentLength>FileLength) return "File too big!";

PostedFile.SaveAs(SavePath+fileName);

return "Upload File Successfully!";

}

catch(System.Exception exc)

{return exc.Message;}

}

return "Please select a file to upload!";

}

}

}

用csc /target:Library Wmj.cs 编译成dll供以后多次调用

调用举例

<%@page language="C#" runat="server"%>

<%@import namespace="Wmj"%>

<script language="C#" runat="server">

void Upload(object sender,EventArgs e)

{

MyUpload myUpload=new MyUpload();