grid

参考示例：FileUpload：文件上传控件

创建FileUpload  

<input id="fileupload1" class="mini-fileupload" name="Fdata" limitType="*.txt" 
    flashUrl="swfupload/swfupload.swf"
    uploadUrl="upload.aspx"
    onuploadsuccess="onUploadSuccess"
    />
            

服务端处理

// 获得程序路径
string tempFile = Request.PhysicalApplicationPath;

//找到目标文件对象
HttpPostedFile uploadFile = Request.Files["Fdata"];

// 如果有文件, 则保存到一个地址
if (uploadFile.ContentLength > 0)
{
    uploadFile.SaveAs(string.Format("{0}{1}{2}", tempFile, "demo\\fileUpload\\upload\\", uploadFile.FileName));
}

Response.Write(uploadFile.FileName +"("+DateTime.Now+")");    //可以返回一个JSON字符串, 在客户端做更多处理