HttpPostedFileBase 基类

public void uploadDocMentSave(string Type)
        {

if (Request.Files.Count > 0)
            {

HttpPostedFileBase files = Request.Files[0];//获取文件

string filename = Path.GetFileName(files.FileName); //获取文件的名称

int index = filename.IndexOf(".");
                int namelength = filename.Length;
                string HouzuiName = filename.Substring(index, filename.Length - index);
                string newName = string.Format("{0:yyyyMMddHHmmssffff}", DateTime.Now) + HouzuiName;
                //得到文件的名称
                string path = HttpContext.Server.MapPath("file://content//resources//uploadfile//WorkFlow//") + newName;
                files.SaveAs(path);
            }
        }