form提交上传图片

html：

       

<!--<form method="post" action="../ashx/Management.ashx" enctype="multipart/form-data" target="myiframe">

<input id="file1" name="file1" type="file" />
<input id="upload" type="submit" value="上传" /></form>
<iframe width="505" height="500" name="myiframe" id="myiframe" frameborder="0" scrolling="no"></iframe>-->

一般处理程序（ashx）：

 

//HttpPostedFile fileUpload2 = context.Request.Files["file1"]; // 接收图片

//string filename = fileUpload2.FileName; // 图片name
//string serverpath = System.Web.HttpContext.Current.Server.MapPath("../imglist/" + filename); // 保存路径
//fileUpload2.SaveAs(serverpath); // 保存

//System.Drawing.Image img = System.Drawing.Image.FromFile(serverpath);

//System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(serverpath);
//bitmap.Save("c:\button.Png", System.Drawing.Imaging.ImageFormat.Png);// 格式转换

// fileUpload2.SaveAs(serverpath);