Asp.net Webforms uploading file using Ajax-Upload
I want to use the Ajax-Upload script to upload multiple images. The kicker is I have to use Asp.net webforms, the way I've been doing ajax has been to have a simple page web method like so.
[WebMethod()]
public static string Method(string param)
{
return "Hello World";
}
I am running into trouble figuring out how to upload an image without using the webforms FileUpload control so I can upload files asynchronously. I must be using the wrong search terms because I cannot find another example of someone doing this inside of webforms.
EDIT: To be more specific I am looking for help with the server side. The plugin I linked to handles all of the client side s开发者_如何学JAVAtuff. I am currently looking into writing a customer handler...
I'd prefer to avoid using update panel controls(like the AjaxToolkit) and just stick to the plugin if thats possible.
In asp.net- ajax you can Asyncupload which is part of the Ajax control toolkit. http://www.asp.net/ajax/ajaxcontroltoolkit/samples/AsyncFileUpload/AsyncFileUpload.aspx If you are looking at jquery plugins, take a look at uploadify http://www.uploadify.com.
ANSWER:
What I did was wrote an Image Upload handler script that is pretty basic but it should get the job done. Here it is.
public void ProcessRequest(HttpContext context)
{
string uploadDir = "C:\\Upload";
try
{
Image i = Image.FromStream(context.Request.InputStream);
string filename = context.Request.Params["qqfile"];
if (i.RawFormat.Equals(ImageFormat.Png))
{
i.Save(uploadDir + "\\" + filename, ImageFormat.Png);
}
else if (i.RawFormat.Equals(ImageFormat.Jpeg))
{
i.Save(uploadDir + "\\" + filename, ImageFormat.Jpeg);
}
else if (i.RawFormat.Equals(ImageFormat.Gif))
{
i.Save(uploadDir + "\\" + filename, ImageFormat.Gif);
}
else if (i.RawFormat.Equals(ImageFormat.Bmp))
{
i.Save(uploadDir + "\\" + filename, ImageFormat.Bmp);
}
}
catch (Exception e)
{
context.Response.Write("{'error':'"+e.Message+"'}");
}
context.Response.Write("{'success':true}");
}
And this works with the Ajax-Upload script I linked to earlier. Thanks
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