ASP.Net常用功能整理- - 生成圖片的縮略圖

源代碼：smallImg.rar

以下是上傳一張800*1000的，分別生成不同縮略圖

命名空間：
using System.IO;

核心代碼：
  System.Drawing.Image.GetThumbnailImageAbort  callb = null;

try
    {     
     // 保存到指定的文件夾
     File1.PostedFile.SaveAs(Server.MapPath("/semir/ImgSides/") + sidePath);
     MyImage = System.Drawing.Image.FromFile(Server.MapPath("/semir/ImgSides/") + sidePath);
     // 保存大圖(原圖)
     NewImage = MyImage.GetThumbnailImage(800, 1000, callb, new System.IntPtr()); 
     NewImage.Save(Server.MapPath("/semir/ImgSides/") + "big" + sidePath);
     // 保存中圖
     NewImage = MyImage.GetThumbnailImage(400, 500, callb, new System.IntPtr()); 
     NewImage.Save(Server.MapPath("/semir/ImgSides/") + "middle" + sidePath);
     
     // 單款衣服的圖片大小
     NewImage =  MyImage.GetThumbnailImage(255, 319, callb, new System.IntPtr());
     NewImage.Save(Server.MapPath("/semir/ImgSides/") + "SingleImage" + sidePath);
      
     // 保存小圖
     NewImage = MyImage.GetThumbnailImage(115, 144, callb, new System.IntPtr()); 
     NewImage.Save(Server.MapPath("/semir/ImgSides/") + "small" + sidePath);
     // 保存極小圖
     NewImage = MyImage.GetThumbnailImage(45, 56, callb, new System.IntPtr()); 
     NewImage.Save(Server.MapPath("/semir/ImgSides/") + "dinky" + sidePath);     

     MyImage.Dispose();
     NewImage.Dispose(); 
     // 一定要釋放，否則進程被占用
    }
    catch(Exception ex)
    {
     Response.Write(ex.ToString());
    }