一个文件上传的类

namespace Wmj

{

public class MyUpload

{

private System.Web.HttpPostedFile postedFile=null;

private string savePath="";

private string extension="";

private int fileLength=0;

//显示该组件使用的参数信息

public string Help

{

get{

string helpstring;

helpstring="<font size=3>MyUpload myUpload=new MyUpload(); //构造函数";

helpstring+="myUpload.PostedFile=file1.PostedFile;//设置要上传的文件";

helpstring+="myUpload.SavePath=\"e:\\\";//设置要上传到服务器的路径，默认c:\\";

helpstring+="myUpload.FileLength=100; //设置上传文件的最大长度，单位k，默认1k";

helpstring+="myUpload.Extension=\"doc\";设置上传文件的扩展名，默认txt";

helpstring+="label1.Text=myUpload.Upload();//开始上传，并显示上传结果</font>";

helpstring+="<font size=3 color=red>Design By WengMingJun 2001-12-12 All Right Reserved!</font>";

return helpstring;